I'm encountering the same problems with my Dell Inspiron 1525 and Xubuntu 14.04 (Trusty Tahr) x86_64. Most any display change (blanking, add/removing external monitor) results in a non-fatal error:
May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784402] CPU: 1 PID: 1546 Comm: Xorg Tainted: PF W O 3.13.0-24-generic #46-Ubuntu May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784407] Hardware name: Dell Inc. Inspiron 1525 /0U990C, BIOS A11 03/10/2008 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784412] 0000000000000009 ffff88007918dbb8 ffffffff81715a64 0000000000000000 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784423] ffff88007918dbf0 ffffffff810676bd ffff880035d0b000 0000000000000000 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784433] ffff880035c17800 ffff880035c17af8 ffff880056704ca0 ffff88007918dc00 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784443] Call Trace: May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784456] [<ffffffff81715a64>] dump_stack+0x45/0x56 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784467] [<ffffffff810676bd>] warn_slowpath_common+0x7d/0xa0 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784475] [<ffffffff8106779a>] warn_slowpath_null+0x1a/0x20 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784521] [<ffffffffa00ba232>] intel_modeset_check_state+0x6f2/0x780 [i915] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784568] [<ffffffffa00ba355>] intel_set_mode+0x25/0x30 [i915] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784615] [<ffffffffa00babfb>] intel_crtc_set_config+0x7ab/0x9a0 [i915] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784657] [<ffffffffa000fe9d>] drm_mode_set_config_internal+0x5d/0xe0 [drm] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784696] [<ffffffffa0012d87>] drm_mode_setcrtc+0xf7/0x5e0 [drm] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784725] [<ffffffffa0003c22>] drm_ioctl+0x502/0x630 [drm] May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784743] [<ffffffff811cc6e0>] do_vfs_ioctl+0x2e0/0x4c0 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784752] [<ffffffff8109dd84>] ? vtime_account_user+0x54/0x60 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784761] [<ffffffff811cc941>] SyS_ioctl+0x81/0xa0 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784771] [<ffffffff8172663f>] tracesys+0xe1/0xe6 May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.784776] ---[ end trace 7832e5d6c3fcdce6 ]--- May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.790057] ------------[ cut here ]------------ May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.790120] WARNING: CPU: 1 PID: 1546 at /build/buildd/linux-3.13.0/drivers/gpu/drm/i915/intel_display.c:9226 intel_modeset_check_state+0x62d/0x780 [i915]() May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.790123] encoder's hw state doesn't match sw tracking (expected 0, found 1) May 20 19:03:18 jhansonxi-l4 kernel: [ 8205.790125] Modules linked in:... Suspend/hibernate fails also. Closing the lid results in a freeze. The "encoder's hw state doesn't match sw tracking" seems to be the problem. A fix for the same error was made last year: http://linux-kernel.2935.n7.nabble.com/Re-Re-drm-i915-new-warning-regression-in-3-7-10-and-3-8-3-td631548.html https://bugzilla.redhat.com/show_bug.cgi?id=962386 The current problem may be another regression. Others encountered a similar problem with 3.13: https://lkml.org/lkml/2013/12/17/796 ** Bug watch added: Red Hat Bugzilla #962386 https://bugzilla.redhat.com/show_bug.cgi?id=962386 -- 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/1310823 Title: [Dell Inspiron 1525] Ubuntu freezes when lid closed Status in “linux” package in Ubuntu: Confirmed Bug description: Hi. I'm using Dell Inspiron 1525 for several years and it was used with Ubuntu since 10.04 or so. After upgrading from 13.10 to 14.04 my PC started to freeze completely (no response from anything, requires hard reboot) if I'm closing the lid or display turning off due to inactivity timeout. I also had this problem after wake from suspend, but recently got kernel update and looks like it was fixed (no freezes after wake up). I tried fresh install of 14.04 that I'm using right now, but it doesn't help. ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: xorg 1:7.7+1ubuntu8 ProcVersionSignature: Ubuntu 3.13.0-24.46-generic 3.13.9 Uname: Linux 3.13.0-24-generic x86_64 NonfreeKernelModules: wl .tmp.unity.support.test.0: ApportVersion: 2.14.1-0ubuntu3 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 CurrentDesktop: Unity Date: Tue Apr 22 02:07:31 2014 DistUpgraded: Fresh install DistroCodename: trusty DistroVariant: ubuntu DkmsStatus: bcmwl, 6.30.223.141+bdcom, 3.13.0-24-generic, x86_64: installed ExtraDebuggingInterest: Yes GpuHangFrequency: Several times a day GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller]) Subsystem: Dell Device [1028:022f] Subsystem: Dell Device [1028:022f] InstallationDate: Installed on 2014-04-20 (1 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: Dell Inc. Inspiron 1525 ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-3.13.0-24-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/16/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A16 dmi.board.name: 0U990C dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA16:bd10/16/2008:svnDellInc.:pnInspiron1525:pvr:rvnDellInc.:rn0U990C:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Inspiron 1525 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.11+14.04.20140409-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.52-1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.1.0-4ubuntu5 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.1.0-4ubuntu5 version.xserver-xorg-core: xserver-xorg-core 2:1.15.1-0ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu3 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.910-0ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu2 xserver.bootTime: Tue Apr 22 01:39:40 2014 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 9076 vendor AUO xserver.version: 2:1.15.1-0ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1310823/+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
