Results 1 to 8 of 8

Thread: Built-in Screen goes blank when lowering resolution

  1. #1
    Join Date
    Nov 2006
    Beans
    6
    Distro
    Ubuntu 6.10 Edgy

    Built-in Screen goes blank when lowering resolution

    Hi all,

    This post is a duplicate of my ask Ubuntu question.

    I started thinking that the question might need too much interaction for ask Ubuntu. That's why I'm posting it here.

    I also didn't really know in which section to put it.

    Please tell me if I can do anything better.


    I have a three monitor setup like this.



    Everything works fine like this. But whenever I set the Built-in Screen to a lower resolution, the Built-in Screen just goes blank. The other two screens keep working fine. When I set it back to 1920x1080 it comes back up. The screen space seems to be rendered, since I can move my mouse into it, and put windows in it. I can also take a screenshot of it.



    But nothing shows up on the laptop screen. The backlight is on and can still be adjusted. System Settings just acts like everything is fine.



    I did some searching and also tried ChatGPT, but the problem is so specific that I don’t really know what to look for.

    I’m on Kubuntu 23.10. The laptop is an HP Elitebook 845 G8, with an AMD Ryzen 7 PRO 5850U with Radeon Graphics.

    Code:
    sudo lspci -k -vvv -P -PP
    gives me:

    Code:
    00:08.1/04:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] Cezanne [Radeon Vega Series / Radeon Vega Mobile Series] (rev d1) (prog-if 00 [VGA controller])
            DeviceName: Onboard IGD
            Subsystem: Hewlett-Packard Company Cezanne [Radeon Vega Series / Radeon Vega Mobile Series]
            Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
            Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort+ <TAbort- <MAbort- >SERR- <PERR- INTx-
            Latency: 0
            Interrupt: pin A routed to IRQ 74
            IOMMU group: 12
            Region 0: Memory at 460000000 (64-bit, prefetchable) [size=256M]
            Region 2: Memory at 470000000 (64-bit, prefetchable) [size=2M]
            Region 4: I/O ports at 1000 [size=256]
            Region 5: Memory at fb300000 (32-bit, non-prefetchable) [size=512K]
            Capabilities: [48] Vendor Specific Information: Len=08 <?>
            Capabilities: [50] Power Management version 3
                    Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1+,D2+,D3hot+,D3cold+)
                    Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
            Capabilities: [64] Express (v2) Legacy Endpoint, MSI 00
                    DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <4us, L1 unlimited
                            ExtTag+ AttnBtn- AttnInd- PwrInd- RBE+ FLReset-
                    DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
                            RlxdOrd+ ExtTag+ PhantFunc- AuxPwr- NoSnoop+
                            MaxPayload 128 bytes, MaxReadReq 512 bytes
                    DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
                    LnkCap: Port #0, Speed 8GT/s, Width x16, ASPM L0s L1, Exit Latency L0s <64ns, L1 <1us
                            ClockPM- Surprise- LLActRep- BwNot- ASPMOptComp+
                    LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                            ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                    LnkSta: Speed 8GT/s, Width x16
                            TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                    DevCap2: Completion Timeout: Range ABCD, TimeoutDis+ NROPrPrP- LTR-
                             10BitTagComp+ 10BitTagReq- OBFF Not Supported, ExtFmt+ EETLPPrefix+, MaxEETLPPrefixes 1
                             EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
                             FRS-
                             AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                    DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
                             AtomicOpsCtl: ReqEn-
                    LnkCap2: Supported Link Speeds: 2.5-16GT/s, Crosslink- Retimer+ 2Retimers+ DRS-
                    LnkCtl2: Target Link Speed: 8GT/s, EnterCompliance- SpeedDis-
                             Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                             Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
                    LnkSta2: Current De-emphasis Level: -3.5dB, EqualizationComplete+ EqualizationPhase1+
                             EqualizationPhase2+ EqualizationPhase3+ LinkEqualizationRequest-
                             Retimer- 2Retimers- CrosslinkRes: unsupported
            Capabilities: [a0] MSI: Enable- Count=1/4 Maskable- 64bit+
                    Address: 0000000000000000  Data: 0000
            Capabilities: [c0] MSI-X: Enable+ Count=4 Masked-
                    Vector table: BAR=5 offset=00042000
                    PBA: BAR=5 offset=00043000
            Capabilities: [100 v1] Vendor Specific Information: ID=0001 Rev=1 Len=010 <?>
            Capabilities: [270 v1] Secondary PCI Express
                    LnkCtl3: LnkEquIntrruptEn- PerformEqu-
                    LaneErrStat: 0
            Capabilities: [2a0 v1] Access Control Services
                    ACSCap: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
                    ACSCtl: SrcValid- TransBlk- ReqRedir- CmpltRedir- UpstreamFwd- EgressCtrl- DirectTrans-
            Capabilities: [2b0 v1] Address Translation Service (ATS)
                    ATSCap: Invalidate Queue Depth: 00
                    ATSCtl: Enable+, Smallest Translation Unit: 00
            Capabilities: [2c0 v1] Page Request Interface (PRI)
                    PRICtl: Enable- Reset-
                    PRISta: RF- UPRGI- Stopped+
                    Page Request Capacity: 00000100, Page Request Allocation: 00000000
            Capabilities: [2d0 v1] Process Address Space ID (PASID)
                    PASIDCap: Exec+ Priv+, Max PASID Width: 10
                    PASIDCtl: Enable- Exec- Priv-
            Capabilities: [400 v1] Data Link Feature <?>
            Capabilities: [410 v1] Physical Layer 16.0 GT/s <?>
            Capabilities: [440 v1] Lane Margining at the Receiver <?>
            Kernel driver in use: amdgpu
            Kernel modules: amdgpu
    Code:
    sudo lshw
    gives me:

    Code:
    *-display
                    description: VGA compatible controller
                    product: Cezanne [Radeon Vega Series / Radeon Vega Mobile Series]
                    vendor: Advanced Micro Devices, Inc. [AMD/ATI]
                    physical id: 0
                    bus info: pci@0000:04:00.0
                    logical name: /dev/fb0
                    version: d1
                    width: 64 bits
                    clock: 33MHz
                    capabilities: pm pciexpress msi msix vga_controller bus_master cap_list fb
                    configuration: depth=32 driver=amdgpu latency=0 mode=1920x1080 resolution=1920,1080 visual=truecolor xres=1920 yres=1080
                    resources: iomemory:40-3f iomemory:40-3f irq:74 memory:460000000-46fffffff memory:470000000-4701fffff ioport:1000(size=256) memory:fb300000-fb37ffff
    Code:
    xrandr
    gives me:

    Code:
    Screen 0: minimum 320 x 200, current 4480 x 1080, maximum 16384 x 16384
    eDP connected primary 1280x720+3200+0 (normal left inverted right x axis y axis) 309mm x 173mm
       1920x1080     60.00 +  40.00  
       1680x1050     60.00  
       1280x1024     60.00  
       1440x900      60.00  
       1280x800      60.00  
       1280x720      60.00* 
       1024x768      60.00  
       800x600       60.00  
       640x480       60.00  
    HDMI-A-0 disconnected (normal left inverted right x axis y axis)
    DisplayPort-0 disconnected (normal left inverted right x axis y axis)
    DisplayPort-1 disconnected (normal left inverted right x axis y axis)
    DisplayPort-2 connected 1920x1080+1280+0 (normal left inverted right x axis y axis) 480mm x 270mm
       1920x1080     60.00*+  50.00    59.94  
       1680x1050     59.88  
       1400x1050     59.95  
       1600x900      60.00  
       1280x1024     75.02    60.02  
       1440x900      59.90  
       1280x800      59.91  
       1152x864      75.00  
       1280x720      60.00    50.00    59.94  
       1024x768      75.03    60.00  
       800x600       75.00    60.32  
       720x576       50.00  
       720x480       60.00    59.94  
       640x480       75.00    60.00    59.94  
       720x400       70.08  
    DisplayPort-3 connected 1280x1024+0+56 (normal left inverted right x axis y axis) 338mm x 270mm
       1280x1024     60.02*+  75.02  
       1024x768      75.03    60.00  
       800x600       75.00    60.32  
       640x480       75.00    59.94  
       720x400       70.08
    When setting the resolution from 1920x1080 to 1280x720 the Xorg log is:
    Code:
    [216181.451] (WW) AMDGPU(0): flip queue failed: Invalid argument
    [216181.451] (WW) AMDGPU(0): Page flip failed: Invalid argument
    [216181.484] (II) AMDGPU(0): Allocate new frame buffer 4480x1080
    [216181.484] (II) AMDGPU(0):  => pitch 17920 bytes
    [216181.598] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.598] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.598] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.598] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.598] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.598] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.598] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.628] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.628] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.628] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.628] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.628] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.628] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.628] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.664] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.664] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.664] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.664] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.664] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.664] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.664] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.664] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.664] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.664] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.665] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.665] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.665] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.665] (WW) AMDGPU(0): flip queue failed: Invalid argument
    [216181.665] (WW) AMDGPU(0): Page flip failed: Invalid argument
    [216181.733] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.733] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.733] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.733] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.733] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.733] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.733] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.759] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.760] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.760] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.760] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.760] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.760] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.760] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.787] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.787] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.787] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.787] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.787] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.787] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.787] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.816] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.817] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.817] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.817] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.817] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.817] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.817] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.844] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.844] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.844] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.844] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.844] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.844] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.844] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    [216181.869] (II) AMDGPU(0): EDID vendor "FUS", prod id 1686
    [216181.869] (II) AMDGPU(0): Using hsync ranges from config file
    [216181.869] (II) AMDGPU(0): Using vrefresh ranges from config file
    [216181.869] (II) AMDGPU(0): Printing DDC gathered Modelines:
    [216181.869] (II) AMDGPU(0): Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    [216181.869] (II) AMDGPU(0): Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    [216181.869] (II) AMDGPU(0): Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    I didn't have any troubles in my previous Ubuntu install, Kubuntu 22.04.

    Could anybody give me some ideas. I don't know in which direction to look.
    Last edited by Notiz Me; November 14th, 2023 at 11:46 AM. Reason: layout mistakes

  2. #2
    Join Date
    Nov 2008
    Location
    Boston MetroWest
    Beans
    16,326

    Re: Built-in Screen goes blank when lowering resolution

    If you didn't have problems with 22.04, why are you moving on to 23.10, a release with only nine months of support? Is there some specific piece of software for which you need the very newest version? Remember that releases other than those with long-term support like 22.04 and the upcoming 24.04 can be buggy. Upgrading just because it's possible isn't always the best strategy with Linux. I'd go back to 22.04 and wait for 24.04 next April.
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

    Blog · Linode System Administration Guides · Android Apps for Ubuntu Users

  3. #3
    Join Date
    Jun 2007
    Beans
    14,839

    Re: Built-in Screen goes blank when lowering resolution

    https://gitlab.freedesktop.org/agd5f...76293c6efe8487

    Quote Originally Posted by SeijiSensei View Post
    If you didn't have problems with 22.04, why are you moving on to 23.10, a release with only nine months of support? ... Remember that releases other than those with long-term support like 22.04 and the upcoming 24.04 can be buggy.
    Maybe your personal philosophy is to only use LTS releases, but LTS releases can have bugs too. The biannual releases are stable and meant for regular users. They are not experimental releases meant just for devs and testers.

  4. #4
    Join Date
    Nov 2008
    Location
    Boston MetroWest
    Beans
    16,326

    Re: Built-in Screen goes blank when lowering resolution

    I've used both. Most times everything works but sometimes there are problems. Unless there is a compelling reason for upgrading from a 22.04 release that is working for him to 23.10, which is not, I would just revert.
    If you ask for help, do not abandon your request. Please have the courtesy to check for responses and thank the people who helped you.

    Blog · Linode System Administration Guides · Android Apps for Ubuntu Users

  5. #5
    Join Date
    Mar 2010
    Location
    USA
    Beans
    Hidden!
    Distro
    Ubuntu Development Release

    Re: Built-in Screen goes blank when lowering resolution

    Your resolution of 1280x720 does not match any of your supported modelines. The closest is 1280x1024... In the xorg log file, it's searching for 1280x720, probes the display for it's EDID table, only see's these
    Code:
    Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    When it doesn't see it, it throws an error, then tries again...

    That is what I see.

    You could always declare a modeline for 1080x720@60, and it to an NN-XXX.conf file in /etc/X11/xorg.conf.d, and then try it.

    "Concurrent coexistence of Windows, Linux and UNIX..." || Ubuntu user # 33563, Linux user # 533637
    Sticky: Graphics Resolution | UbuntuForums 'system-info' Script | Posting Guidelines | Code Tags

  6. #6
    Join Date
    Nov 2006
    Beans
    6
    Distro
    Ubuntu 6.10 Edgy

    Re: Built-in Screen goes blank when lowering resolution

    Quote Originally Posted by SeijiSensei View Post
    If you didn't have problems with 22.04, why are you moving on to 23.10, a release with only nine months of support? Is there some specific piece of software for which you need the very newest version? Remember that releases other than those with long-term support like 22.04 and the upcoming 24.04 can be buggy. Upgrading just because it's possible isn't always the best strategy with Linux. I'd go back to 22.04 and wait for 24.04 next April.
    I did have problems on my previous install that urged me to upgrade, but they where different problems

    Now that you mention that 22.04 was LTS, my previous version must have been 22.10. By the time I upgraded the repo's were unavailable

    Anyway, not really the help I was looking for

    Somewhere in my installation there's a misconfiguration or a bug, and I would like to solve it or post a bug report. I just feel like I can't pinpoint the problem yet.

    Quote Originally Posted by Yellow Pasque View Post
    I'm not in mirror mode, so I guess this doesn't apply to me?

    Quote Originally Posted by MAFoElffen View Post
    Your resolution of 1280x720 does not match any of your supported modelines. The closest is 1280x1024... In the xorg log file, it's searching for 1280x720, probes the display for it's EDID table, only see's these
    Code:
    Modeline "1280x1024"x0.0  108.00  1280 1328 1440 1688  1024 1025 1028 1066 +hsync +vsync (64.0 kHz eP)
    Modeline "800x600"x0.0   40.00  800 840 968 1056  600 601 605 628 +hsync +vsync (37.9 kHz e)
    Modeline "640x480"x0.0   31.50  640 656 720 840  480 481 484 500 -hsync -vsync (37.5 kHz e)
    Modeline "640x480"x0.0   25.18  640 656 752 800  480 490 492 525 -hsync -vsync (31.5 kHz e)
    Modeline "720x400"x0.0   28.32  720 738 846 900  400 412 414 449 -hsync +vsync (31.5 kHz e)
    Modeline "1280x1024"x0.0  135.00  1280 1296 1440 1688  1024 1025 1028 1066 +hsync +vsync (80.0 kHz e)
    Modeline "1024x768"x0.0   78.75  1024 1040 1136 1312  768 769 772 800 +hsync +vsync (60.0 kHz e)
    Modeline "1024x768"x0.0   65.00  1024 1048 1184 1344  768 771 777 806 -hsync -vsync (48.4 kHz e)
    Modeline "800x600"x0.0   49.50  800 816 896 1056  600 601 604 625 +hsync +vsync (46.9 kHz e)
    When it doesn't see it, it throws an error, then tries again...

    That is what I see.

    You could always declare a modeline for 1080x720@60, and it to an NN-XXX.conf file in /etc/X11/xorg.conf.d, and then try it.
    I didn't notice it yet, but for some reason, when I make one resolution change to my right screen (Built-in Screen) using the System Settings, the Xorg log contains 9 times the DDC Modelines of my left screen. "FUS" = Fujitsu Siemens". But that's not the screen of which I'm changing the resolution

    The Fujitsu Siemens screen is a 4:3 aspect ratio, so that checks out, it's set to 1280x1024.


    I went looking for EDID information of the Built-in Screen and found these results:

    Code:
    pieter@pieter-HP-EliteBook-845-G8-Notebook-PC:~$ sudo get-edid | parse-edid
    This is read-edid version 3.0.2. Prepare for some fun.
    Attempting to use i2c interface
    No EDID on bus 0
    No EDID on bus 1
    No EDID on bus 3
    No EDID on bus 4
    No EDID on bus 5
    No EDID on bus 6
    No EDID on bus 8
    5 potential busses found: 2 7 9 10 11
    Will scan through until the first EDID is found.
    Pass a bus number as an option to this program to go only for that one.
    Bus 2 doesn't really have an EDID...
    128-byte EDID successfully retrieved from i2c bus 7
    Looks like i2c was successful. Have a good day.
    Checksum Correct
    
    Section "Monitor"
            Identifier ""
            ModelName ""
            VendorName "CMN"
            # Monitor Manufactured week 2 of 2021
            # EDID version 1.4
            # Digital Display
            DisplaySize 310 170
            Gamma 2.20
            Option "DPMS" "false"
            Modeline        "Mode 0" +hsync -vsync
            Modeline        "Mode 1" +hsync -vsync
    EndSection
    
    pieter@pieter-HP-EliteBook-845-G8-Notebook-PC:~$ edid-decode /sys/class/drm/card0-eDP-1/edid
    edid-decode (hex):
    
    00 ff ff ff ff ff ff 00 0d ae 1d 14 00 00 00 00
    02 1f 01 04 a5 1f 11 78 03 ee 95 a3 54 4c 99 26
    0f 50 54 00 00 00 01 01 01 01 01 01 01 01 01 01
    01 01 01 01 01 01 a4 38 80 e6 70 38 2c 40 30 20
    a6 00 35 ad 10 00 00 1a c3 25 80 e6 70 38 2c 40
    30 20 a6 00 35 ad 10 00 00 1a 00 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 02
    00 0c 26 ff 14 3c c8 09 06 14 c8 00 00 00 00 6a
    
    ----------------
    
    Block 0, Base EDID:
      EDID Structure Version & Revision: 1.4
      Vendor & Product Identification:
        Manufacturer: CMN
        Model: 5149
        Made in: week 2 of 2021
      Basic Display Parameters & Features:
        Digital display
        Bits per primary color channel: 8
        DisplayPort interface
        Maximum image size: 31 cm x 17 cm
        Gamma: 2.20
        Supported color formats: RGB 4:4:4
        First detailed timing includes the native pixel format and preferred refresh rate
        Display is continuous frequency
      Color Characteristics:
        Red  : 0.6396, 0.3300
        Green: 0.2998, 0.5996
        Blue : 0.1503, 0.0595
        White: 0.3134, 0.3291
      Established Timings I & II: none
      Standard Timings: none
      Detailed Timing Descriptors:
        DTD 1:  1920x1080   60.001655 Hz  16:9     67.442 kHz    145.000000 MHz (309 mm x 173 mm)
                     Hfront   48 Hsync  32 Hback  150 Hpol P
                     Vfront   10 Vsync   6 Vback   28 Vpol N
        DTD 2:  1920x1080   40.002483 Hz  16:9     44.963 kHz     96.670000 MHz (309 mm x 173 mm)
                     Hfront   48 Hsync  32 Hback  150 Hpol P
                     Vfront   10 Vsync   6 Vback   28 Vpol N
        Empty Descriptor
        Manufacturer-Specified Display Descriptor (0x02): 00 02 00 0c 26 ff 14 3c c8 09 06 14 c8 00 00 00 '....&..<........'
    Checksum: 0x6a
    
    pieter@pieter-HP-EliteBook-845-G8-Notebook-PC:~$ grep -B 1 -A 44 CMN /var/log/Xorg.0.log
    [     9.841] (II) AMDGPU(0): EDID for output eDP
    [     9.841] (II) AMDGPU(0): Manufacturer: CMN  Model: 141d  Serial#: 0
    [     9.841] (II) AMDGPU(0): Year: 2021  Week: 2
    [     9.841] (II) AMDGPU(0): EDID Version: 1.4
    [     9.841] (II) AMDGPU(0): Digital Display Input
    [     9.841] (II) AMDGPU(0): 8 bits per channel
    [     9.841] (II) AMDGPU(0): Digital interface is DisplayPort
    [     9.841] (II) AMDGPU(0): Max Image Size [cm]: horiz.: 31  vert.: 17
    [     9.841] (II) AMDGPU(0): Gamma: 2.20
    [     9.841] (II) AMDGPU(0): No DPMS capabilities specified
    [     9.841] (II) AMDGPU(0): Supported color encodings: RGB 4:4:4
    [     9.841] (II) AMDGPU(0): First detailed timing is preferred mode
    [     9.841] (II) AMDGPU(0): Preferred mode is native pixel format and refresh rate
    [     9.841] (II) AMDGPU(0): Display is continuous-frequency
    [     9.841] (II) AMDGPU(0): redX: 0.640 redY: 0.330   greenX: 0.300 greenY: 0.600
    [     9.841] (II) AMDGPU(0): blueX: 0.150 blueY: 0.060   whiteX: 0.313 whiteY: 0.329
    [     9.841] (II) AMDGPU(0): Manufacturer's mask: 0
    [     9.841] (II) AMDGPU(0): Supported detailed timing:
    [     9.841] (II) AMDGPU(0): clock: 145.0 MHz   Image Size:  309 x 173 mm
    [     9.841] (II) AMDGPU(0): h_active: 1920  h_sync: 1968  h_sync_end 2000 h_blank_end 2150 h_border: 0
    [     9.841] (II) AMDGPU(0): v_active: 1080  v_sync: 1090  v_sync_end 1096 v_blanking: 1124 v_border: 0
    [     9.841] (II) AMDGPU(0): Supported detailed timing:
    [     9.841] (II) AMDGPU(0): clock: 96.7 MHz   Image Size:  309 x 173 mm
    [     9.841] (II) AMDGPU(0): h_active: 1920  h_sync: 1968  h_sync_end 2000 h_blank_end 2150 h_border: 0
    [     9.841] (II) AMDGPU(0): v_active: 1080  v_sync: 1090  v_sync_end 1096 v_blanking: 1124 v_border: 0
    [     9.841] (II) AMDGPU(0): Unknown vendor-specific block 2
    [     9.841] (II) AMDGPU(0): EDID (in hex):
    [     9.841] (II) AMDGPU(0):    00ffffffffffff000dae1d1400000000
    [     9.841] (II) AMDGPU(0):    021f0104a51f117803ee95a3544c9926
    [     9.841] (II) AMDGPU(0):    0f505400000001010101010101010101
    [     9.841] (II) AMDGPU(0):    010101010101a43880e670382c403020
    [     9.841] (II) AMDGPU(0):    a60035ad1000001ac32580e670382c40
    [     9.841] (II) AMDGPU(0):    3020a60035ad1000001a000000000000
    [     9.841] (II) AMDGPU(0):    00000000000000000000000000000002
    [     9.841] (II) AMDGPU(0):    000c26ff143cc8090614c8000000006a
    [     9.842] (II) AMDGPU(0): Printing probed modes for output eDP
    [     9.842] (II) AMDGPU(0): Modeline "1920x1080"x60.0  145.00  1920 1968 2000 2150  1080 1090 1096 1124 +hsync -vsync (67.4 kHz eP)
    [     9.842] (II) AMDGPU(0): Modeline "1920x1080"x40.0   96.67  1920 1968 2000 2150  1080 1090 1096 1124 +hsync -vsync (45.0 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1680x1050"x60.0  145.00  1680 1968 2000 2150  1050 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1280x1024"x60.0  145.00  1280 1968 2000 2150  1024 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1440x900"x60.0  145.00  1440 1968 2000 2150  900 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1280x800"x60.0  145.00  1280 1968 2000 2150  800 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1280x720"x60.0  145.00  1280 1968 2000 2150  720 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "1024x768"x60.0  145.00  1024 1968 2000 2150  768 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "800x600"x60.0  145.00  800 1968 2000 2150  600 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    [     9.842] (II) AMDGPU(0): Modeline "640x480"x60.0  145.00  640 1968 2000 2150  480 1090 1096 1124 +hsync -vsync (67.4 kHz e)
    If I'm interpreting this correctly, the monitor only has 1920x1080 in it's EDID data, but Xorg adds some more modes.

  7. #7
    Join Date
    Nov 2006
    Beans
    6
    Distro
    Ubuntu 6.10 Edgy

    Re: Built-in Screen goes blank when lowering resolution

    Quote Originally Posted by Notiz Me View Post
    Quote Originally Posted by Yellow Pasque View Post
    I'm not in mirror mode, so I guess this doesn't apply to me?
    On second thought, it might apply to me, since the edid didn't give any resolution other than 1920x1080, this commit would add some common modes.


    I managed to get things working by installing a newer version of the kernel.

    I used the ubuntu-mainline-kernel.sh script to download and install a different kernel version.

    Since I have secure boot enabled, I had to be able to sign the different kernel version. I created and enrolled a kernel signing certificate using ubuntu-sb-kernel-signing.

    I turned kernel signing on in ubuntu-mainline-kernel.sh.

    Since Ubuntu was on version 6.5.0, I started at v6.5.1, but all version from v6.5.1 up to v6.5.8 gave an error message

    Code:
    Downloading index from kernel.ubuntu.com
    Abort, the amd64 build has not succeeded
    So I ended up using v6.5.9.

    The error for the amd64 build seems to be solved in the meantime for v6.5.1, v6.5.2 and v6.5.3, the others will probably also get solved.

    I'm using v6.5.9 now and the screen is working perfectly again.

    I hope someone will find use of my solution. If it's better to tackle this differently, please let me know

  8. #8
    Join Date
    Nov 2006
    Beans
    6
    Distro
    Ubuntu 6.10 Edgy

    Re: Built-in Screen goes blank when lowering resolution

    As can be seen on https://bugs.launchpad.net/ubuntu/+s...x/+bug/2046504 a bugfix has been released. So the solution above is no longer valid.

    I haven't had time to figure how to switch back to the standard Ubuntu kernel yet.

Tags for this Thread

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •