Public bug reported: The following occurred after I updated from Quantal to Raring.
I have an i5 2500K Sandy Bridge. When I remove /etc/X11/xorg.conf and login to lightdm, SNA is used, but this causes my second monitor to go out of sync, and my first monitor stops updating (though the mouse cursor works). I am forced to do Ctrl+Alt+F1 to reboot. When I create the following xorg.conf: Section "Device" Identifier "intel" Driver "intel" Option "AccelMethod" "uxa" EndSection Everything works, but sometimes, Xorg locks up for a few seconds. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 ProcVersionSignature: Ubuntu 3.8.0-14.24-generic 3.8.4 Uname: Linux 3.8.0-14-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.9.2-0ubuntu5 Architecture: amd64 CompizPlugins: [core,crashhandler,composite,opengl,compiztoolbox,decor,dbus,notification,grid,move,mousepoll,session,regex,resize,resizeinfo,scale,animation,workarounds,expo,unityshell] CompositorRunning: None CurrentDmesg: Error: command ['sh', '-c', 'dmesg | comm -13 --nocheck-order /var/log/dmesg -'] failed with exit code 1: comm: /var/log/dmesg: Permission denied Date: Wed Mar 27 16:53:06 2013 DistUpgraded: 2013-03-19 01:28:15,517 DEBUG failed to SystemUnLock() (E:Not locked) DistroCodename: raring DistroVariant: ubuntu DkmsStatus: vboxhost, 4.2.10, 3.5.0-26-generic, x86_64: installed vboxhost, 4.2.10, 3.8.0-13-generic, x86_64: installed vboxhost, 4.2.10, 3.8.0-14-generic, x86_64: installed ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0112] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Micro-Star International Co., Ltd. Device [1462:7676] InstallationDate: Installed on 2011-06-11 (655 days ago) InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1) MachineType: MSI MS-7676 MarkForUpload: True ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.8.0-14-generic root=UUID=7f1427f0-8ec2-41a4-96e8-5987dd9beaa4 ro elevator=noop quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to raring on 2013-03-19 (8 days ago) dmi.bios.date: 05/04/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: V10.2 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: Z68MA-ED55 (MS-7676) dmi.board.vendor: MSI dmi.board.version: 2.0 dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: MSI dmi.chassis.version: 2.0 dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV10.2:bd05/04/2011:svnMSI:pnMS-7676:pvr2.0:rvnMSI:rnZ68MA-ED55(MS-7676):rvr2.0:cvnMSI:ct3:cvr2.0: dmi.product.name: MS-7676 dmi.product.version: 2.0 dmi.sys.vendor: MSI version.compiz: compiz 1:0.9.9~daily13.03.25-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.43-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 9.0.3-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 9.0.3-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.13.3-0ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu2b2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.1.0-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.20.9-0ubuntu2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.7-0ubuntu1 xserver.bootTime: Wed Mar 27 13:31:49 2013 xserver.configfile: /etc/X11/xorg.conf xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.13.3-0ubuntu4 xserver.video_driver: intel ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug raring ubuntu -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1161112 Title: Raring regression: SNA fails completely; UXA causes random hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1161112/+subscriptions _______________________________________________ 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