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Where is the X.org config file? How do I configure X there?

How do I edit the xorg.conf file, when there isnt one in Kubuntu 11.10?

I want to alter the video driver, but how do i do this in 11.10? The reason is that i believe I am having issues after a recent upgrage in 11.10, and now my desktop effects no longer work when using the OpenGL compositing, even with the functionality checks disabled...

however, is there a way to alter this file and have they moved it to a new location?

Any ideas?


  • What driver are you using? What graphics processor/chip/card do you have?
    – RolandiXor
    Oct 7, 2011 at 21:35
  • There might not be such a file, you need to create it from scratch. Try sudo updatedb and then locate xorg.conf. Oct 7, 2011 at 22:34
  • Found the issue. I read that in 11.10 the xorg.conf file has gone? When I updated it installed the Nvidia driver, this seemed to screw up my intel driver. I removed all Nvidia references in synaptic package manager (plus any other video driver) and Removed the following packages: libgl1-mesa-swx11 Installed the following packages: libgl1-mesa-glx (7.11-0ubuntu3) Rebooted and my issue resolved... Thanks for your responses... much appreciated :-)
    – salv007x
    Oct 7, 2011 at 23:20
  • the file usually resides in /etc/X11/ directory, but only if your Graphics driver has created it, if its not, you need to create it manually like @queueoverflow said.
    – Kushal
    Dec 13, 2011 at 9:35


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