Hi,
After I installed the NVIDIA drivers, Xorg started at the next reboot with 1600x1200 -- which my monitor does not support.
How can I disable any resolution >= 1600x1200 ?
(That is Kubuntu 10.04 with xorg 1:7.5+5ubuntu1.)
Thanks,
Albert
Hi,
After I installed the NVIDIA drivers, Xorg started at the next reboot with 1600x1200 -- which my monitor does not support.
How can I disable any resolution >= 1600x1200 ?
(That is Kubuntu 10.04 with xorg 1:7.5+5ubuntu1.)
Thanks,
Albert
Have a look at https://wiki.ubuntu.com/X/Config/Resolution
Use xrandr --delmode to remove a mode from the set of valid modes for an output.
Last edited by diesch; June 21st, 2010 at 03:46 PM.
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Can't I just edit some config file and state that I want to disallow this resolution?Code:az@acompneu:~$ DISPLAY=:0 xrandr --rmmode 1600x1200 X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 153 (RANDR) Minor opcode of failed request: 17 (RRDestroyMode) Serial number of failed request: 18 Current serial number in output stream: 19 az@acompneu:~$ DISPLAY=:0 xrandr --delmode default 1600x1200 X Error of failed request: BadAccess (attempt to access private resource denied) Major opcode of failed request: 153 (RANDR) Minor opcode of failed request: 19 (RRDeleteOutputMode) Serial number of failed request: 18 Current serial number in output stream: 19 az@acompneu:~$ DISPLAY=:0 sudo xrandr --delmode default 1600x1200 X Error of failed request: BadAccess (attempt to access private resource denied) Major opcode of failed request: 153 (RANDR) Minor opcode of failed request: 19 (RRDeleteOutputMode) Serial number of failed request: 18 Current serial number in output stream: 19
The wiki page doesn't really help -- it mostly say how I can edit that for the user. But of course I don't want to have that only for one user. I want to have it globally and esp. also at login.
Funny thing is:
crashes the whole Xserver.Code:az@acompneu:~$ DISPLAY=:0 sudo xrandr -s 1280x1024 XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0" after 14 requests (11 known processed) with 0 events remaining.
Earlier, I would have edited the xorg.conf. However, it seems that this file is mostly empty and obsolete these days and it detects everything automatically. I have seen that I can still set all resolutions manually there. However, I don't want to do that, I would like to have it automatically detected and only disable everything >=1600x1200. Or maybe it doesn't matter that much if it have those resolutions in the list if I can just get Xorg to automatically select 1280x1024 (or sth like that) and not just the highest resolution it found. How can I do that?
What is the native resolution of your monitor and how is it connected (VGA, DVI, HDMI)?
What does just plain xrandr say? Although, that may only work from a terminal in X and may not reveal anything from a text console if you cannot get X to work.
Sometimes when using a laptop or DVI (which can do VGA or DVI) the nVidia drivers mistakenly output to VGA instead of DVI, but that is usually if you get blank screen or no graphics at all in X. If that is the case, you might try adding the following to the "Screen" section of /etc/X11/xorg.conf from recovery boot, then reboot:
Option "UseDisplayDevice" "DFP"
It doesn't have a native resolution. It's connected via VGA.
xrandr:
Code:az@acompneu:~$ DISPLAY=:0 xrandr Screen 0: minimum 320 x 175, current 1600 x 1200, maximum 1600 x 1200 default connected 1600x1200+0+0 0mm x 0mm 1600x1200 50.0* 51.0 52.0 53.0 54.0 1440x900 55.0 1400x1050 56.0 57.0 58.0 59.0 1360x768 60.0 61.0 1280x1024 62.0 63.0 64.0 1280x960 65.0 66.0 1152x864 67.0 68.0 69.0 70.0 71.0 72.0 73.0 1024x768 74.0 75.0 76.0 77.0 78.0 960x600 79.0 960x540 80.0 840x525 81.0 82.0 83.0 84.0 85.0 832x624 86.0 800x600 87.0 88.0 89.0 90.0 91.0 92.0 720x450 93.0 720x400 94.0 700x525 95.0 96.0 680x384 97.0 98.0 640x480 99.0 100.0 101.0 102.0 103.0 104.0 640x400 105.0 640x350 106.0 512x384 107.0 108.0 109.0 400x300 110.0 320x240 111.0 112.0 320x175 113.0
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