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Thread: xrandr errors + poor resolution

  1. #1
    Join Date
    May 2012
    Beans
    6

    xrandr errors + poor resolution

    Theres a few threads on the net with this problem but none of which help/directly relate to me.

    heres whats what;
    Code:
    xrandr: Failed to get size of gamma for output default
    Screen 0: minimum 320 x 240, current 1024 x 768, maximum 1024 x 768
    default connected 1024x768+0+0 0mm x 0mm
       1024x768       50.0* 
       800x600        51.0     52.0     53.0  
       680x384        54.0     55.0  
       640x480        56.0  
       512x384        57.0  
       400x300        58.0  
       320x240        59.0
    I created a modeline for the size I require for my monitor (1280x1024);
    Code:
    chazara@Chaz2P0:~$ cvt -v 1280 1024
    # 1280x1024 59.89 Hz (CVT 1.31M4) hsync: 63.67 kHz; pclk: 109.00 MHz
    Modeline "1280x1024_60.00"  109.00  1280 1368 1496 1712  1024 1027 1034 1063 -hsync +vsync
    then proceeded to use xrandr to create a newmode;
    Code:
    chazara@Chaz2P0:~$ xrandr --newmode "1280x1024_60Hz" 109.00 1280 1368 1496 1712 1024 1027 1034 1063 -hsync +vsync
    xrandr: Failed to get size of gamma for output default
    It says "Failed to get size of gamma for output default" which it also did at "xrandr", but still displays the new mode;
    Code:
    chazara@Chaz2P0:~$ xrandr
    xrandr: Failed to get size of gamma for output default
    Screen 0: minimum 320 x 240, current 1024 x 768, maximum 1024 x 768
    default connected 1024x768+0+0 0mm x 0mm
       1024x768       50.0* 
       800x600        51.0     52.0     53.0  
       680x384        54.0     55.0  
       640x480        56.0  
       512x384        57.0  
       400x300        58.0  
       320x240        59.0  
      1280x1024_60Hz (0x178)  109.0MHz
            h: width  1280 start 1368 end 1496 total 1712 skew    0 clock   63.7KHz
            v: height 1024 start 1027 end 1034 total 1063           clock   59.9Hz
    Addmode, regardless, refuses to accept;
    Code:
    chazara@Chaz2P0:~$ xrandr --addmode VGA1 "1280x1024_60Hz"
    xrandr: Failed to get size of gamma for output default
    xrandr: cannot find output "VGA1"
    Now, I'm not sure if I'm just being an idiot or not, but, I'm pretty sure the output can /only/ be VGA1... stuck a little bit here...

    I also looked into creating a xorg.conf file in /etc/X11/ but seemed to just screw up my startup by doing so.

    The file looked (somewhat) like this;
    Code:
    Section "Screen" 
    Identifier      "Default Screen"         
    Device        "Monitor"         
    Monitor       "LGMoniTor" 
    DefaultDepth  24         
    SubSection 
    "Display"                 
    Depth          24                 
    Modes         "1280x1024"  "1024x768"   "640x480"         
    EndSubSection 
    EndSection
    Right now, I just really need someone to point me in the right direction. I'm pretty sure it can be solved in one of two ways;
    A) Getting --addmode & --output to work
    B) A better xorg.conf file

    Much appreciated
    Chazara
    Last edited by Chazara; May 4th, 2012 at 06:28 PM. Reason: Code Boxes

  2. #2
    Join Date
    May 2012
    Beans
    6

    Re: xrandr errors + poor resolution

    AFK for a few hours. Need to feed myself + housemates

  3. #3
    Join Date
    May 2012
    Beans
    6

    Re: xrandr errors + poor resolution

    Bump, problem persists. Any help would be appreciated

  4. #4
    Join Date
    Feb 2009
    Location
    Dallas, TX
    Beans
    7,237
    Distro
    Ubuntu 14.04 Trusty Tahr

    Re: xrandr errors + poor resolution

    Hi Chazara.

    Could you post the content of this file?
    Code:
    /var/log/Xorg.0.log
    Please paste it here: http://paste.ubuntu.com/, and then post back the link here.

    Regards.

  5. #5
    Join Date
    May 2012
    Beans
    6

    Re: xrandr errors + poor resolution

    Hi there Papibe, thanks for the response.

    Unfortunately I am currently staying at my mothers with having got some work in the area and will be away from my desktop for at least a week...

    I will perform the var log as and when I can and shall be in touch. I hope you don't mind coming back to this in a few weeks time

    Chaz

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