Setting higher resolution for Intel graphics controller in Ubuntu 11.04

[Grenage]

I assume adding the resolution with xrandr did not work? It's worth creating a new thread, if you post the following information, I and others can try and help there. The results of:

xrandr -q

and

lspci | grep VGA

Your monitor make and model (if you can find them on it)
Your existing xorg.conf, if you have one:

cat /etc/X11/xorg.conf

[mongo]

Sorry about the delay, had my hands full at work.
I'm currently running Mint 10 and it's working flawlessly (even multi monitor), but I'd still like to upgrade if possible.

When I tried to add the resolution via xrandr I got errors, iirc the max detected display size was too small (even if I configured it manually in xorg.conf).

The requested outputs were captured on Mint 10, I can also boot from n a live 11.04 usb if necessarily.

LVDS1 connected 1280x1024+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
   1280x1024      59.7*+   85.0     75.0     60.0  
   1280x960       85.0     60.0  
   1152x864      100.0     85.1     85.0     75.0     75.0     70.0     60.0  
   1024x768       85.0     75.0     70.1     60.0  
   832x624        74.6  
   800x600        85.1     72.2     75.0     60.3     56.2  
   640x480        85.0     72.8     75.0     59.9  
   720x400        85.0  
   640x400        85.1  
   640x350        85.1

00:02.0 VGA compatible controller: Intel Corporation 4 Series Chipset Integrated Graphics Controller (rev 03)

As you can see the LVDS1 is detected correctly with xrandr. That wasn't the case on 11.04 or Mint 11, the maximum supported resolution was 1024x768.

It's a panel PC (Advantec IPPC 6192).
You can find the specifications here:
http://www.advantech.com/products/IP...58BF70990.aspx

Btw even the touch panel is working perfectly with the penmount driver.

Thank you for your support, much obliged.

[Grenage]

Welcome back.

I imagine that Mint 11 is based on Ubuntu 11, so it makes sense that you'd have the same problem. Would you be able to post the output of xrandr when you try to add a resolution in Ubuntu/Mint 11?

[mongo]

Sure thing.

Ubuntu 11.04:

LVDS1 connected 1024x768+1920+432 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*+
   800x600        60.3     56.2  
   640x480        59.9

ubuntu@ubuntu:~$ gtf 1280 1024 60

  # 1280x1024 @ 60.00 Hz (GTF) hsync: 63.60 kHz; pclk: 108.88 MHz
  Modeline "1280x1024_60.00"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync

xrandr --newmode "1280x1024_60.00"  108.88  1280 1360 1496 1712  1024 1025 1028 1060  -HSync +Vsync

LVDS1 connected 1024x768+1920+432 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*+
   800x600        60.3     56.2  
   640x480        59.9  
  1280x1024_60.00 (0xcb)  108.9MHz
        h: width  1280 start 1360 end 1496 total 1712 skew    0 clock   63.6KHz
        v: height 1024 start 1025 end 1028 total 1060           clock   60.0Hz

ubuntu@ubuntu:~$ xrandr --addmode LVDS1 1280x1024_60.00
X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  150 (RANDR)
  Minor opcode of failed request:  18 (RRAddOutputMode)
  Serial number of failed request:  27
  Current serial number in output stream:  28

Adding the modeline to xorg.conf did help the xrandr to detect higher resolutions but still couldn't set them. Something about display size too small iirc (dmesg).

I've also tried lower refresh rates (<60) but the result is the same.
Any other tips?

Btw the HP LP2475W connected via VGA is correctly identified and displayed (1920x1200 - multimonitor works out of the box on 11.04 also).

Screen 0: minimum 320 x 200, current 2944 x 1200, maximum 8192 x 8192
VGA1 connected 1920x1200+0+0 (normal left inverted right x axis y axis) 546mm x 352mm
   1920x1200      60.0*+
   1600x1200      60.0  
   1680x1050      60.0  
   1600x1000      60.0  
   1280x1024      75.0     60.0  
   1280x960       60.0  
   1152x864       75.0  
   1024x768       75.1     60.0  
   832x624        74.6  
   800x600        75.0     60.3  
   640x480        75.0     60.0  
   720x400        70.1  
LVDS1 connected 1024x768+1920+432 (normal left inverted right x axis y axis) 0mm x 0mm
   1024x768       60.0*+
   800x600        60.3     56.2  
   640x480        59.9

Thanks!

[Grenage]

Weird! I am wondering if this might be a graphical driver issue, rather than a plain xrandr bug. What graphics card are you using, and what driver with it?

P.S: It's worth using cvt rather than gtf; very little difference, but cvt will give you vesa-standard timings.

[mongo]

Was thinking of that myself.
I'm using the kernel module that came with the distro (loads by default).
I'm not at work now but I think it's the i915. I'll do a lsmod tomorrow and report back.
I also tried a patched module from someone (can't remember who) and it made no difference.
My bug wasn't in the patch description but I thought it's worth a try.

Cvt or gtf makes no difference.
It's the GPU in Intel Q45 (integrated).

Btw I also tried the newest Fedora and the "bug" is there also.

I'm guessing they are all using the same kernel module for intel cards.

edit:

ubuntu@ubuntu:~$ lsmod | grep video
video                  18951  1 i915

[mongo]

Just tried 11.04 again (I saw some updates to xserver-xorg-video-intel), but no luck still.
Back to Mint 10 I guess, it really bugs me though

I'm starting to think it's got something to do with EDID, because xrandr doesn't detect it for LVDS1 on natty but does on maverick.
Any workarounds for this?

[Grenage]

Just tried 11.04 again (I saw some updates to xserver-xorg-video-intel), but no luck still.
Back to Mint 10 I guess, it really bugs me though

I'm starting to think it's got something to do with EDID, because xrandr doesn't detect it for LVDS1 on natty but does on maverick.
Any workarounds for this?

Well we can try a custom xorg.conf; if enough of the settings are present, then it shouldn't really need the EDID data (if that's the problem). ddcprobe (part of xresprobe) should be a good indicator of whether the EDID data can be seen, it outputs all possible resolutions for the card and screen:

sudo ddcprobe

[mongo]

vbe: VESA 3.0 detected.
oem: Intel(r)Eaglelake Graphics Chip Accelerated VGA BIOS
vendor: Intel Corporation
product: Intel(r)Eaglelake Graphics Controller Hardware Version 0.0
memory: 65472kb
mode: 1280x1024x256
mode: 1280x1024x64k
mode: 1280x1024x16m
mode: 1024x768x256
mode: 1024x768x64k
mode: 1024x768x16m
mode: 640x480x16m
mode: 800x600x64k
mode: 800x600x16m
mode: 640x480x256
mode: 800x600x256
mode: 640x480x64k
edid: 
edid: 1 3
id: 26f6
eisa: HWP26f6
serial: 01010101
manufacture: 26 2010
input: separate sync, composite sync, sync on green, analog signal.
screensize: 54 35
gamma: 2.200000
dpms: RGB, active off, suspend, standby
timing: 720x400@70 Hz (VGA 640x400, IBM)
timing: 640x480@60 Hz (VGA)
timing: 640x480@75 Hz (VESA)
timing: 800x600@60 Hz (VESA)
timing: 800x600@72 Hz (VESA)
timing: 800x600@75 Hz (VESA)
timing: 1024x768@87 Hz Interlaced (8514A)
timing: 1024x768@70 Hz (VESA)
timing: 1024x768@75 Hz (VESA)
ctiming: 1280x960@60
ctiming: 1280x1024@60
ctiming: 1600x1600@60
ctiming: 1600x1200@60
ctiming: 1680x1680@60
ctiming: 1920x1920@60
dtiming: 1920x1200@59
monitorname: HP LP2475w
monitorrange: 30-94, 48-85
monitorserial: PLC02602C7

Section "Monitor"
	Identifier   "LVDS1"
	VendorName   "Advantech"
	ModelName    "IPPC-6192A"
	Modeline     "1280x1024"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
EndSection

Section "Device"
	Identifier  "Card0"
	Driver      "intel"
	BusID       "PCI:0:2:0"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device     "Card0"
	Monitor    "LVDS1"
	DefaultDepth 24
	SubSection "Display"
		Viewport   0 0
		Depth     1
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     4
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     8
		Modes    "1280x1024"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     15
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     16
		Modes    "1280x1024"
	EndSubSection
	SubSection "Display"
		Viewport   0 0
		Depth     24
		Modes    "1280x1024"
	EndSubSection
EndSection

Then when I look at the log I find this:

[  1573.667] (II) intel(0): Not using mode "1280x1024" (exceeds panel dimensions)

[Grenage]

Odd that it detects the display as a 24" HP monitor; do you have an external screen connected? Try the config below, although I'm not particularly hopeful, as this is looking like a bug.

Section "Monitor"
	Identifier "Monitor0"
	VendorName "Advantech"
	ModelName "IPPC-6192A"
	HorizSync 30 - 94
	VertRefresh 48 - 85
Modeline "1280x1024_60.00"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
EndSection

Section "Device"
	Identifier "Device0"
	Driver "intel"
	VendorName "Intel i915"
EndSection

Section "Screen"
	Identifier "Screen0"
	Device "Device0"
	Monitor "Monitor0"
	DefaultDepth 24
	SubSection "Display"
		Depth 24
		Modes "1280x1024"
	EndSubSection
EndSection