This option(*) solved the problem for me too! (*) Option "LVDSBiosNativeMode" "false" to the Device section of xorg.conf
My Hardware : 01:05.0 VGA compatible controller: ATI Technologies Inc Radeon IGP 330M/340M/350M (prog-if 00 [VGA]) Subsystem: Hewlett-Packard Company Radeon IGP 345M Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping+ SERR- FastB2B+ Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort- <TAbort- <MAbort- >SERR- <PERR- Latency: 66 (2000ns min), Cache Line Size: 32 bytes Interrupt: pin A routed to IRQ 10 Region 0: Memory at dc000000 (32-bit, prefetchable) [size=64M] Region 1: I/O ports at 9000 [size=256] Region 2: Memory at d4300000 (32-bit, non-prefetchable) [size=64K] [virtual] Expansion ROM at d4320000 [disabled] [size=128K] Capabilities: <access denied> I attach my correct xorg.conf ** Attachment added: "Correct xorg.conf file" http://launchpadlibrarian.net/10179375/xorg.conf -- Xorg ATI driver somewhat supports ATI Radeon IGP https://bugs.launchpad.net/bugs/155954 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs