** Tags added: latest-bios-3503 needs-bisect needs-upstream-testing regression-release
** Description changed: Using the latest 3.13-rc7 on two of my AMD machines, both of which have Radeon HD 6850 graphics cards in them, the system crashes when playing videos. I think it may be easier to cause the crash when playing a video that is 720p+. It also is not limited to crashing when playing videos, but can also crash simply from browsing the web or doing anything that causes a demand on the GPU. It may or may not be related to DPM implemented in the latest kernels. Using kernel 3.12 from Trusty repos with DPM enabled, it works fine. I have a machine with a Radeon HD 7950 but I have not tested it yet. Similarly, I have used an AMD Richland APU which crashes with kernel 3.13 immediately on the login screen. Put simply, there needs to be a lot of testing of AMD chips before releasing kernel 3.13 for Trusty stable. + WORKAROUND: I found that if I disable DPM by editing /etc/default/grub + and adding radeon.dpm=0 to CMDLINE_LINUX that the crashing stops. + ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.12.0-7-generic 3.12.0-7.15 ProcVersionSignature: Ubuntu 3.12.0-7.15-generic 3.12.4 Uname: Linux 3.12.0-7-generic x86_64 ApportVersion: 2.12.7-0ubuntu6 Architecture: amd64 AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: ching 2397 F.... pulseaudio - /dev/snd/controlC0: ching 2397 F.... pulseaudio + USER PID ACCESS COMMAND + /dev/snd/controlC1: ching 2397 F.... pulseaudio + /dev/snd/controlC0: ching 2397 F.... pulseaudio CRDA: - country AU: - (2402 - 2482 @ 40), (N/A, 20) - (5170 - 5250 @ 40), (3, 23) - (5250 - 5330 @ 40), (3, 23), DFS - (5735 - 5835 @ 40), (3, 30) + country AU: + (2402 - 2482 @ 40), (N/A, 20) + (5170 - 5250 @ 40), (3, 23) + (5250 - 5330 @ 40), (3, 23), DFS + (5735 - 5835 @ 40), (3, 30) CurrentDesktop: Unity Date: Tue Jan 7 23:50:13 2014 HibernationDevice: RESUME=UUID=39d467a4-e793-46df-9a88-10813a999704 MachineType: System manufacturer System Product Name ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.12.0-7-generic root=UUID=1533ba1d-4ff6-4974-839f-5074ef65a6f1 ro splash quiet radeon.audio=1 radeon.dpm=1 vt.handoff=7 RelatedPackageVersions: - linux-restricted-modules-3.12.0-7-generic N/A - linux-backports-modules-3.12.0-7-generic N/A - linux-firmware 1.119 + linux-restricted-modules-3.12.0-7-generic N/A + linux-backports-modules-3.12.0-7-generic N/A + linux-firmware 1.119 RfKill: - 0: phy0: Wireless LAN - Soft blocked: no - Hard blocked: no + 0: phy0: Wireless LAN + Soft blocked: no + Hard blocked: no SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/13/2011 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 3503 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A78T-E 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.:bvr3503:bd04/13/2011:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78T-E:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1266984 Title: Kernel 3.13 [AMD DPM] Radeon HD 6800 Crashes and/or Hangs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1266984/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
