I'm also affected, not so much the issue of annoying error messages each time an X app is launched but rather that some apps just don't start, e.g. $ gnome-system-monitor Xlib: extension "RANDR" missing on display ":0.0".
I need Xinerama because of dual head display with one screen rotated I'm using Lucid Linux mendel 2.6.32-37-generic #81-Ubuntu SMP Fri Dec 2 20:32:42 UTC 2011 x86_64 GNU/Linux HW NVIDIA Corporation Quadro FX 580 SW NVIDIA prop driver version current -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gtk+2.0 in Ubuntu. https://bugs.launchpad.net/bugs/157319 Title: Xlib: extension "RANDR" missing on display ":0.0" while using -nvidia with Xinerama turned on Status in GTK+ GUI Toolkit: Fix Released Status in “gtk+2.0” package in Ubuntu: Confirmed Bug description: Binary package hint: xorg Interesting problem. Whenever I start up X, it loads RandR, so far as I can tell (The xorg log shows that it is indeed loaded), but If I ever try to do anything via xrandr, it tells me that the extension is missing on my display. m3r1k@reborn-desktop:~$ cat /var/log/Xorg.0.log |grep RandR (==) RandR enabled (==) RandR enabled m3r1k@reborn-desktop:~$ xrandr -q Xlib: extension "RANDR" missing on display ":0.0". RandR extension missing I'm not sure what to do. To manage notifications about this bug go to: https://bugs.launchpad.net/gtk/+bug/157319/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
