I've near searched to the end of Google to find a solution. One of my observations is that the symptoms of other bugs never matches the symptoms of this bug. On my laptop, everything seems to be OK—that is, until I run some thing requiring 3D. Then my machine grinds to a halt. No logs, no nothing. 100% on all four cores.
So, I'm thinking, what is _something_ is misbehaving, but the system believes everything to be OK? The answer to that, it seems, is cpu frequency scaling. My CPU cores are scaled using the 'powersave' governance. Using Half Life 2 as a benchmark (this game ran well on trusty, but currently is not playable after 1.5 minutes), I looked at what happened to cpu frequencies while playing the game. At first, all four cores jumped to 3GHz [1]. Then, surprisingly, they were lowered to ~130 MHz [2]. Uh. So, setting my cpu frequency scaling governance to 'performance' partly fixes this issue. [1] http://pastebin.ubuntu.com/10276246/ [2] http://pastebin.ubuntu.com/10276257/ ** Also affects: ubuntu (Ubuntu) Importance: Undecided Status: New -- 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/1354046 Title: no 3d acceleration with error [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up Status in linux package in Ubuntu: Confirmed Status in ubuntu package in Ubuntu: New Status in xserver-xorg-video-intel package in Ubuntu: Confirmed Bug description: Description: 3D games, video (especially flash) makes computer unresponsive. The problem has been present since upgrade to Utopic, but have recently become worse, maybe because of error message [drm:intel_dp_start_link_train] *ERROR* too many full retries, give up which appears in all terminals. How to reproduce: Start a 1080p video. e.g. Note that the video is not run from an encrypted folder. Or watch a video on youtube. Reproducable for new users as well, so not related to /home/$USER What happens: Usage on all four CPUs on my DELL XPS 13 DEVELOPER EDITION will be between 30% and 100%. What I expected: Expected same 3D performance as on Thrusty. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.16.0-6.11-generic 3.16.0-rc7 Uname: Linux 3.16.0-6-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.14.5-0ubuntu3 Architecture: amd64 BootLog: Scanning for Btrfs filesystems * Setting up X socket directories... [240G [234G[ OK ] CompizPlugins: [core,composite,opengl,compiztoolbox,decor,vpswitch,snap,mousepoll,resize,place,move,wall,grid,regex,imgpng,session,gnomecompat,animation,fade,unitymtgrabhandles,workarounds,scale,expo,ezoom,unityshell] CompositorRunning: compiz CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0' CompositorUnredirectFSW: true CurrentDesktop: Unity Date: Thu Aug 7 17:03:51 2014 DistUpgraded: Fresh install DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-precise-amd64-20120703-2 DistroCodename: utopic DistroVariant: ubuntu DkmsStatus: vboxhost, 4.3.12, 3.13.0-24-generic, x86_64: installed vboxhost, 4.3.12, 3.13.0-27-generic, x86_64: installed vboxhost, 4.3.12, 3.13.0-29-generic, x86_64: installed vboxhost, 4.3.12, 3.16.0-5-generic, x86_64: installed vboxhost, 4.3.12, 3.16.0-6-generic, x86_64: installed EcryptfsInUse: Yes ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:058b] InstallationDate: Installed on 2013-08-27 (345 days ago) InstallationMedia: Ubuntu 12.04 "Precise" - Build amd64 LIVE Binary 20120703-15:08 MachineType: Dell Inc. Dell System XPS L322X ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-6-generic root=UUID=221de9c1-f10a-4be4-9273-5c12864c8680 ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display SystemImageInfo: Error: [Errno 2] No such file or directory: 'system-image-cli' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 05/15/2013 dmi.bios.vendor: Dell Inc. dmi.bios.version: A09 dmi.board.name: 0PJHXN dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.chassis.version: 0.1 dmi.modalias: dmi:bvnDellInc.:bvrA09:bd05/15/2013:svnDellInc.:pnDellSystemXPSL322X:pvr:rvnDellInc.:rn0PJHXN:rvrA00:cvnDellInc.:ct8:cvr0.1: dmi.product.name: Dell System XPS L322X dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.11+14.10.20140707-0ubuntu1b1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.54-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.2.3-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental 10.0.0-1ubuntu2 version.libgl1-mesa-glx: libgl1-mesa-glx 10.2.3-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu9 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu1 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.4.0-2ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.914-1~exp1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Thu Aug 7 16:54:59 2014 xserver.configfile: default xserver.errors: intel: Failed to load module "dri3" (module does not exist, 0) intel: Failed to load module "present" (module does not exist, 0) xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 4933 vendor CMN xserver.version: 2:1.15.1-0ubuntu9 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1354046/+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
