** Description changed: I updated from lucid to precise about three weeks ago, hoping that the major wrinkles would have been ironed out by now. Unfortuantely, that isn't so. One very major complication for me is that over time X will use up vast amounts of CPU cycles, usually reaching 100% on one core after about 24 hours of uptime. The computer is an ASUS 1001P with intel i915 graphics. Obviously, the whole system becomes very sluggish, fans running on high speed when X grabs a full core for itself. After closing all programs, X release the grip somewhat but keeps oscillating between 20 and 60% load on a single core with essentially no other programs running. I am aware this may very well be a bug in another package and not in X - itself. So far I can't pinpoint anything, except that it seems that + itself. So far I can't pinpoint anything, except that it appears that Firefox with many tabs open seems to be an accelerating factor to deteriorate the situation. I carried over the Firefox package from lucid to precise and updated from version 15 to 17 only yesterday. I pin Firefox because the recent release cycle is exposing me to too many regressions. I hoped the problem with X might go away by going to 17 now but that's not the case. Since version 15 acted fine in lucid and a precise installation with the same package misbehaved this seems to indicate that Firefox might not be the culprit (although I wouldn't yet rule it out completely). - The problem occurs with both the lucid kernel and the precise kernel, - although I felt it might have taken longer with the lucid kernel. I - believe I was able to verify this with the mainline kernel as well but - can't be sure anymore. Last time I tried mainline it would only run at - 800x600. That was unusable for normal work and therefore I didn't keep - the machine up long enough for the problem to occur that time. + The problem occurs with both the lucid, precise and mainline kernel, + although I felt it might have taken longer with the lucid kernel. Since it takes a while for the regression to rear its head, I'm afraid I can't test with a live CD or a later relase, I need my computer. I'm willing to do gdb or git bisection work, but I'm somewhat inexperienced how to get X to run inside gdb. Some guidance would be appreciated. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.2 ProcVersionSignature: Ubuntu 3.2.0-34.53-generic 3.2.33 Uname: Linux 3.2.0-34-generic i686 .tmp.unity.support.test.0: - + ApportVersion: 2.0.1-0ubuntu15 Architecture: i386 CompizPlugins: [core,composite,opengl,compiztoolbox,decor,mousepoll,screenshot,regex,move,snap,gnomecompat,wall,vpswitch,place,session,resize,grid,animation,imgpng,expo,ezoom,workarounds,fade,scale,unityshell] CompositorRunning: None Date: Fri Dec 7 02:57:22 2012 DistUpgraded: 2012-11-17 18:58:48,482 DEBUG failed to SystemUnLock() (E:Not locked) DistroCodename: precise DistroVariant: ubuntu EcryptfsInUse: Yes ExtraDebuggingInterest: Yes, even including gdb or git bisection work if needed GraphicsCard: - Intel Corporation N10 Family Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller]) - Subsystem: ASUSTeK Computer Inc. Device [1043:83ac] - Subsystem: ASUSTeK Computer Inc. Device [1043:83ac] + Intel Corporation N10 Family Integrated Graphics Controller [8086:a011] (prog-if 00 [VGA controller]) + Subsystem: ASUSTeK Computer Inc. Device [1043:83ac] + Subsystem: ASUSTeK Computer Inc. Device [1043:83ac] MachineType: ASUSTeK Computer INC. 1001P MarkForUpload: True ProcEnviron: - TERM=xterm - PATH=(custom, user) - LANG=de_DE.UTF-8 - LC_MESSAGES=C - SHELL=/bin/bash + TERM=xterm + PATH=(custom, user) + LANG=de_DE.UTF-8 + LC_MESSAGES=C + SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.2.0-34-generic root=/dev/mapper/hostname-root ro quiet splash acpi_osi=Linux backlight=vendor i915.i915_enable_fbc=1 drm.vblankoffdelay=1 SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to precise on 2012-11-17 (19 days ago) dmi.bios.date: 06/23/2010 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 1202 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: 1005P dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: x.xx dmi.chassis.asset.tag: 0x00000000 dmi.chassis.type: 10 dmi.chassis.vendor: ASUSTeK Computer INC. dmi.chassis.version: x.x dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr1202:bd06/23/2010:svnASUSTeKComputerINC.:pn1001P:pvrx.x:rvnASUSTeKComputerINC.:rn1005P:rvrx.xx:cvnASUSTeKComputerINC.:ct10:cvrx.x: dmi.product.name: 1001P dmi.product.version: x.x dmi.sys.vendor: ASUSTeK Computer INC. version.compiz: compiz 1:0.9.7.8-0ubuntu1.4 version.libdrm2: libdrm2 2.4.32-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.4-0ubuntu0.2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.4-0ubuntu0.2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu10.8 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20111219.aacbd629-0ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4.2 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau N/A
-- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1087535 Title: [i915] [regression] Xorg excessive use of CPU (after update from lucid to precise) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1087535/+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
