Thanks for testing. I built a test kernel up to the following commit: c031389a56ca4789876f5896ca349aaa1cd3d544
The test kernel can be downloaded from: http://kernel.ubuntu.com/~jsalisbury/lp1386534 Can you test this kernel and see if it has the bug or not? -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1386534 Title: kernel dependent deterministic view crash on X startup Status in linux package in Ubuntu: Confirmed Bug description: kernel 3.13.0-37 and 3.16.0-23, but not kernel 3.13.0-36 The phenomenon: just when the user interface starts at the end of the Ununtu startup, the screen reamins in one solid color (very light grey, this is the everage of my colors), except for the topmost 3-4 scan lines, where one can see some sort of vibrating content. Sometimes there is a 1-3 seconds of normal operation just at the start, when Ctrl-Alt-F2 works, and swithing there one can work in the character terminal forever. But as soon as the disorder in the X view appears, even the Ctrl-Alt-F2 console change does not work visually, however a blindly stroken Ctr-Alt-Del is correctly executed. What I know: (1) on the core i3 based laptop there is no trace of this kind of view crash, while in case of the Phenom x6 1100t and Radeon HD 6570 based desktop machine the problem is fully deterministic. (2) the problem is distro independet, i.e.: I have it with Ubuntu 14.04 + kernel 3.13.0-37-generic, and also with Ubuntu 14.10 + 3.16.0-23-generic, and I do NOT have it with Ubuntu 14.04 + kernel 3.13.0-36-generic, and also with Ubuntu 14.10 + 3.13.0-36-generic. (3) In case of Ubuntu 14.04 in average every second or third boot gave a 1-3 seconds of grace period when I could escape to Ctrl-Alt-F2, while in case of Ubuntu 14.10 there is no such a short time slot when I could escape. (4) my configuration is set to fall into my only user account directly, I will do experiments, whether the problem is there, if the startup is without falling into an account. If I can, I will apport log files with produced with the 3.16.0-23-generic kernel as well, not only with the 3.13.0-36-generic. I try to send the remaining information after my work day, now I have to leave, sorry. --- .tmp.unity.support.test.0: ApportVersion: 2.14.7-0ubuntu8 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 CurrentDmesg: [ 11.299825] init: plymouth-upstart-bridge main process ended, respawning [ 11.329699] systemd-logind[1615]: Failed to start unit user@1000.service: Unknown unit: user@1000.service [ 11.329706] systemd-logind[1615]: Failed to start user service: Unknown unit: user@1000.service [ 11.332093] systemd-logind[1615]: New session c1 of user prohlep. [ 11.332112] systemd-logind[1615]: Linked /tmp/.X11-unix/X0 to /run/user/1000/X11-display. DistUpgraded: 2014-10-27 10:17:33,100 DEBUG enabling apt cron job DistroCodename: utopic DistroRelease: Ubuntu 14.10 DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GraphicsCard: Advanced Micro Devices, Inc. [AMD/ATI] Turks PRO [Radeon HD 6570/7570/8550] [1002:6759] (prog-if 00 [VGA controller]) Subsystem: XFX Pine Group Inc. Device [1682:3195] InstallationDate: Installed on 2014-06-26 (124 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: System manufacturer System Product Name Package: xorg 1:7.7+7ubuntu2 PackageArchitecture: amd64 ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-36-generic root=UUID=db97e979-6d3b-43cb-9159-341be03e6c9e ro ProcVersionSignature: Ubuntu 3.13.0-36.63-generic 3.13.11.6 Tags: utopic ubuntu compiz-0.9 Uname: Linux 3.13.0-36-generic x86_64 UpgradeStatus: Upgraded to utopic on 2014-10-27 (1 days ago) UserGroups: _MarkForUpload: True dmi.bios.date: 07/18/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2301 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A89GTD-PRO/USB3 dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2301:bd07/18/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A89GTD-PRO/USB3:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.12+14.10.20140918-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.56-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.3.0-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.3.0-0ubuntu3 version.xserver-xorg-core: xserver-xorg-core 2:1.16.0-1ubuntu1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2 xserver.bootTime: Tue Oct 28 21:34:24 2014 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input A4Tech PS/2+USB Mouse MOUSE, id 8 input Cypress Cypress USB Keyboard / PS2 Mouse KEYBOARD, id 9 input Cypress Cypress USB Keyboard / PS2 Mouse KEYBOARD, id 10 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.16.0-1ubuntu1 xserver.video_driver: radeon To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1386534/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp