I had been same problem. Incorrect device loader from org.conf after installation.
_______________________ # Bad org.conf: Section "Screen" Identifier "Default Screen" DefaultDepth 24 EndSection Section "Module" Load "glx" EndSection Section "Device" Identifier "Default Device" Driver "fglrx" EndSection ____________________________ I can fix with org.conf (from previous 9.4). # Good xorg.conf ... Section "ServerLayout" Identifier "aticonfig Layout" Screen 0 "Default Screen" 0 0 EndSection Section "Files" EndSection Section "Module" Load "glx" EndSection Section "ServerFlags" Option "Xinerama" "off" EndSection Section "Monitor" Identifier "Configured Monitor" EndSection Section "Device" Identifier "Configured Video Device" Driver "fglrx" BusID "PCI:1:0:0" EndSection Section "Screen" Identifier "Default Screen" Device "Configured Video Device" Monitor "Configured Monitor" DefaultDepth 24 SubSection "Display" Modes "1440x900" "1024x768" "800x600" "640x480" EndSubSection EndSection ** Attachment added: "Log files" http://launchpadlibrarian.net/42913476/failsafeX-backup-100402194205.tar -- fglrx fails at startup because of missing amdpcsdb.default + removal leaves bad settings in Xorg.conf https://bugs.launchpad.net/bugs/440233 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs