I've been fighting this same problem since upgrading from Intrepid. I looks like X does not load all the dependencies for glx... here's my xorg.conf which works for my radeon 9600 dual monitor setup. (xorg- xserver-ati-video),
This appears to have solved the problem for me. I can't be sure without some more testing though. Section "Module" Load "GLcore" Load "glx" Load "i2c" Load "bitmap" Load "ddc" Load "extmod" Load "int10" Load "vbe" Load "dri" Load "dbe" Load "v4l" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Screen" Identifier "Default Screen" Monitor "Configured Monitor" Device "Configured Video Device" SubSection "Display" Virtual 2560 1024 EndSubSection EndSection Section "Device" Identifier "Configured Video Device" Option "AccelMethod" "EXA" Option "AddARGBGLXVisuals" "true" Option "RenderAccel" "true" Option "AllowGLXWithComposite" "true" EndSection Section "DRI" Mode 0666 EndSection Section "Extensions" Option "Composite" "Enable" EndSection -- firefox segmentation fault in kde4.2 jaunty on maximizing flash video https://bugs.launchpad.net/bugs/366937 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp