Tomi Mikkonen, thank you for your comment. Unfortunately, as this bug report is closed, it is not scoped to you, your hardware, or your problem. So your problem and hardware may be tracked, could you please file a new report with Ubuntu by executing the following in a terminal while booted into the default Ubuntu kernel (not a mainline one) via: ubuntu-bug linux
For more on this, please read the official Ubuntu documentation: Ubuntu Bug Control and Ubuntu Bug Squad: https://wiki.ubuntu.com/Bugs/BestPractices#X.2BAC8-Reporting.Focus_on_One_Issue Ubuntu Kernel Team: https://wiki.ubuntu.com/KernelTeam/KernelTeamBugPolicies#Filing_Kernel_Bug_reports https://wiki.ubuntu.com/Kernel/Policies/DuplicateBugs Ubuntu Community: https://help.ubuntu.com/community/ReportingBugs#Bug_reporting_etiquette When opening up the new report, please feel free to subscribe me to it. As well, please do not announce in this report you created a new bug report. Thank you for your understanding. Helpful bug reporting tips: https://wiki.ubuntu.com/ReportingBugs -- 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/986524 Title: 1002:6739 [Asus P6T] radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec Status in linux package in Ubuntu: Invalid Bug description: Often, the Xorg session freeze, go to black screen, and is display again. Most of the time Xorg stop to respond. I'm not sure what exactly is the cause of the problem, probably some instructions send to the GPU by compiz, which make the kernel GPU code to be locked. So my supposition is that the kernel code can have a deadlock situation. The only trace of error I have is in the kernel log (the kernel itself do not crashed): [ 808.804250] radeon 0000:02:00.0: GPU lockup CP stall for more than 10000msec [ 808.804255] GPU lockup (waiting for 0x0000A23F last fence id 0x0000A23E) [ 808.805394] radeon 0000:02:00.0: GPU softreset [ 808.805398] radeon 0000:02:00.0: GRBM_STATUS=0xB2703828 [ 808.805401] radeon 0000:02:00.0: GRBM_STATUS_SE0=0x1C000007 [ 808.805404] radeon 0000:02:00.0: GRBM_STATUS_SE1=0x08000007 [ 808.805407] radeon 0000:02:00.0: SRBM_STATUS=0x200000C0 [ 808.805422] radeon 0000:02:00.0: GRBM_SOFT_RESET=0x00007F6B [ 808.805526] radeon 0000:02:00.0: GRBM_STATUS=0x00003828 [ 808.805529] radeon 0000:02:00.0: GRBM_STATUS_SE0=0x00000007 [ 808.805532] radeon 0000:02:00.0: GRBM_STATUS_SE1=0x00000007 [ 808.805535] radeon 0000:02:00.0: SRBM_STATUS=0x200000C0 [ 808.806535] radeon 0000:02:00.0: GPU reset succeed [ 808.832454] [drm] PCIE GART of 512M enabled (table at 0x0000000000040000). [ 808.832587] radeon 0000:02:00.0: WB enabled [ 808.849202] [drm] ring test succeeded in 2 usecs [ 808.849217] [drm] ib test succeeded in 3 usecs This can loop 1 to 5 times, with a few seconds between them. This situation can happens any time, and rarely I can continue to use my session. Like I said, the kernel itself do not crash, generally, I login using an another computer with ssh, and type "sudo reboot". I have earch a little for that problem, I've found some, having "GPU lockup CP stall for more than 10000msec" but they seems to not be related to my problem. My ATI card is an "Sapphire Radeon HD 6850 1Go", and I use the free software driver. Using the previous version of Ubuntu I didn't have this error. I have almost no hope to have this bug fixed (too few infos, no one having it), but is there some method I can use to get more informations on this problem ? I will try a kernel debugging, but for a "random" bug, it will be more harder. Some day it crash, some it don't crash! ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: linux-image-3.2.0-23-generic 3.2.0-23.36 ProcVersionSignature: Ubuntu 3.2.0-23.36-generic 3.2.14 Uname: Linux 3.2.0-23-generic x86_64 AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24. ApportVersion: 2.0.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: vono 2113 F.... pulseaudio /dev/snd/controlC2: vono 2113 F.... pulseaudio /dev/snd/controlC0: vono 2113 F.... pulseaudio CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not found. Card0.Amixer.info: Card hw:0 'Intel'/'HDA Intel at 0xf3cf8000 irq 69' Mixer name : 'Realtek ALC1200' Components : 'HDA:10ec0888,10438357,00100101' Controls : 45 Simple ctrls : 21 Card1.Amixer.info: Card hw:1 'XFi'/'Creative X-Fi 20K1 SB073x' Mixer name : '20K1' Components : '' Controls : 27 Simple ctrls : 10 Card2.Amixer.info: Card hw:2 'Generic'/'HD-Audio Generic at 0xf3dfc000 irq 70' Mixer name : 'ATI R6xx HDMI' Components : 'HDA:1002aa01,00aa0100,00100200' Controls : 6 Simple ctrls : 1 Card2.Amixer.values: Simple mixer control 'IEC958',0 Capabilities: pswitch pswitch-joined penum Playback channels: Mono Mono: Playback [on] CurrentDmesg: [ 16.527645] r8169 0000:05:00.0: eth0: link up [ 16.528212] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 27.448590] eth0: no IPv6 routers present Date: Sat Apr 21 12:25:11 2012 HibernationDevice: RESUME=UUID=6ebce938-3b5b-49a8-a605-570468643a2d InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120301) IwConfig: lo no wireless extensions. eth0 no wireless extensions. MachineType: System manufacturer System Product Name ProcEnviron: TERM=xterm PATH=(custom, user) LANG=fr_FR.UTF-8 SHELL=/bin/bash ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-23-generic root=UUID=2179744d-7479-4972-970d-26d1713623d1 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.2.0-23-generic N/A linux-backports-modules-3.2.0-23-generic N/A linux-firmware 1.79 RfKill: SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 02/26/2009 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0403 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: P6T 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.:bvr0403:bd02/26/2009:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP6T:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/986524/+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