Public bug reported: First of all, I appologize if I filed this bug wrong, this is my first time. I am also not 100% sure it is Xorg related, but that seemed the most appropriate choice when I was anwsering the questions in the ubuntu-bug utility.
$ cat /proc/version_signature Ubuntu 3.13.0-12.32-generic 3.13.4 $ lsb_release -rd Description: Ubuntu Trusty Tahr (development branch) Release: 14.04 I originally tried to install 13.10 but had this intermittent blank screen problem so I hoped 14.04 would have a fix but it did not and now I'm troubleshooting in 14.04. The problem is intermittently after I select ubuntu from grub my screen will blank (no signal) as if my computer were off. Here is a link to my forum post discussing the problem and what I've done to try to resolve it http://ubuntuforums.org/showthread.php?t=2207624. I'm not sure if the computer has crashed or its simply not outputing video, but the only way to recover is to do a hard restart and cross my fingers that it wont happen next time. I know there are many bugs about blank screens, but this one seems to be unique in that it happens seemingly at random (race condition?). ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.13.0-12.32-generic 3.13.4 Uname: Linux 3.13.0-12-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.13.2-0ubuntu5 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Mon Feb 24 11:57:32 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu ExtraDebuggingInterest: Yes, if not too technical GpuHangFrequency: Several times a day GpuHangReproducibility: Seems to happen randomly GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Tahiti XT [Radeon HD 7970/R9 280X] [1002:6798] (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. HD 7970 Black Edition [1682:3213] InstallationDate: Installed on 2014-02-24 (0 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140223) MachineType: To be filled by O.E.M. To be filled by O.E.M. PlymouthDebug: Error: [Errno 13] Permission denied: '/var/log/plymouth-debug.log' ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-12-generic root=UUID=ef026b95-15a8-431b-8c0c-01dff07c163c ro drm.debug=0x4 plymouth:debug SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/16/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1604 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: SABERTOOTH 990FX dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: To Be Filled By O.E.M. dmi.chassis.type: 3 dmi.chassis.vendor: To Be Filled By O.E.M. dmi.chassis.version: To Be Filled By O.E.M. dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1604:bd10/16/2012:svnTobefilledbyO.E.M.:pnTobefilledbyO.E.M.:pvrTobefilledbyO.E.M.:rvnASUSTeKCOMPUTERINC.:rnSABERTOOTH990FX:rvrRev1.xx:cvnToBeFilledByO.E.M.:ct3:cvrToBeFilledByO.E.M.: dmi.product.name: To be filled by O.E.M. dmi.product.version: To be filled by O.E.M. dmi.sys.vendor: To be filled by O.E.M. version.compiz: compiz 1:0.9.11+14.04.20140218-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52+git1402191830.c5de5a~gd~t version.libgl1-mesa-dri: libgl1-mesa-dri 10.2~git1402240730.73c78c~gd~t version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.2~git1402240730.73c78c~gd~t version.xserver-xorg-core: xserver-xorg-core 2:1.15.0-1ubuntu6 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Mon Feb 24 11:08:13 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.15.0-1ubuntu6 xserver.video_driver: radeon ** Affects: xorg (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug compiz-0.9 freeze third-party-packages trusty ubuntu ** Attachment added: "lspci-vnvn.log" https://bugs.launchpad.net/bugs/1284296/+attachment/3994861/+files/lspci-vnvn.log -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1284296 Title: screen blanks (as if computer is off) after grub but only sometimes To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1284296/+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
