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Thread: Display Resolution Problem

  1. #1
    Join Date
    Dec 2007
    Location
    Cebu, Philippine
    Beans
    156
    Distro
    Lubuntu 18.04 Bionic Beaver

    Display Resolution Problem

    I recently installed Lubuntu 18.04 running with MS Windows XP Home on my PC. Win XP allows me to set my display resolution to 1280 x 720 60Hz. Lubuntu 18.04 only gives me a choice of:
    • 640 x 480
    • 848 x 480
    • 800 x 600
    • 1024 x 768

    xrandr returns:
    Code:
    ~$ xrandr
    Screen 0: minimum 8 x 8, current 1024 x 768, maximum 32767 x 32767
    DVI1 unknown connection primary (normal left inverted right x axis y axis)
       1368x768      59.88  
       1360x768      59.80  
       1280x800      59.81  
       1152x864      60.00  
       1280x720      59.86  
       1024x768      60.00  
       1024x576      59.90  
       960x540       59.63  
       800x600       60.32  
       640x480       59.94  
    VGA1 connected 1024x768+0+0 (normal left inverted right x axis y axis) 0mm x 0mm
       1024x768      60.00* 
       800x600       60.32    56.25  
       848x480       60.00  
       640x480       59.94  
    VIRTUAL1 disconnected (normal left inverted right x axis y axis)
    My display has VGA and DVI-D (Dual Link) connections. My PC has a DVI-I (Dual Link) connection with a VGA adapter. I am currently using the display with a VGA cable.

    How can I set my display resolution to 1280 x 720 in Lubuntu 18.04? I would like this to occur automatically before I log in however it would be acceptable if it occurred automatically immediately after logging in.
    Last edited by rbscairns; 1 Week Ago at 01:54 AM. Reason: Added more info.
    ASUS eee B202, Atom N270 1.6GHz CPU, 1GB RAM, 160GB SATA HDD, Windows XP + Lubuntu 18.04

  2. #2
    Join Date
    Sep 2009
    Location
    Pennsylvania
    Beans
    2,774
    Distro
    Xubuntu

    Re: Display Resolution Problem

    Try another, known good, VGA cable. Cables fail and some that are cheaper fail to have one wire in them that reports the monitor's info to the graphics card. Windows will ignore this, but Linux will not.

  3. #3
    Join Date
    Mar 2018
    Beans
    48
    Distro
    Lubuntu

    Re: Display Resolution Problem

    You can add you own modelines to you xorg.conf
    I recommend buying a DVI cable instead of another adapter oder VGA cable.
    Please give us info about your graphics card.

  4. #4
    Join Date
    Oct 2009
    Location
    Reykjavík, Ísland
    Beans
    13,023
    Distro
    Lubuntu 18.04 Bionic Beaver

    Re: Display Resolution Problem

    Yes the output from lshw -C video would be interesting.
    Bringing old hardware back to life. About problems due to upgrading.
    Please visit Quick Links -> Unanswered Posts.
    Don't use this space for a list of your hardware. It only creates false hits in the search engines.

  5. #5
    Join Date
    Dec 2007
    Location
    Cebu, Philippine
    Beans
    156
    Distro
    Lubuntu 18.04 Bionic Beaver

    Re: Display Resolution Problem

    I have decided to order a DVI-D cable before delving into adding modlines. The cable should become available this week.

    lshw -C video returned:
    Code:
    *-display:0               
           description: VGA compatible controller
           product: Mobile 945GSE Express Integrated Graphics Controller
           vendor: Intel Corporation
           physical id: 2
           bus info: pci@0000:00:02.0
           version: 03
           width: 32 bits
           clock: 33MHz
           capabilities: msi pm vga_controller bus_master cap_list rom
           configuration: driver=i915 latency=0
           resources: irq:16 memory:fbd00000-fbd7ffff ioport:dc80(size=8) memory:d0000000-dfffffff memory:fbcc0000-fbcfffff memory:c0000-dffff
      *-display:1 UNCLAIMED
           description: Display controller
           product: Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller
           vendor: Intel Corporation
           physical id: 2.1
           bus info: pci@0000:00:02.1
           version: 03
           width: 32 bits
           clock: 33MHz
           capabilities: pm bus_master cap_list
           configuration: latency=0
           resources: memory:fbd80000-fbdfffff
    I will return to this thread after I have tried my DVI cable.
    ASUS eee B202, Atom N270 1.6GHz CPU, 1GB RAM, 160GB SATA HDD, Windows XP + Lubuntu 18.04

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