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- start ubuntu 15.04 and log in - use CTRL+AL+F2 to switch to TTY2. (or a different TTY) - Watch the screen glitch: http://youtu.be/MqPi5dURZ8s - sometimes it's so bad it will not recover and the computer needs to be forcefully rebooted. I should note this is on the newst generation Thinkpad X1 Carbon (Gen 3) It generates this in dmesg: [ 372.015529] ------------[ cut here ]------------ [ 372.015559] WARNING: CPU: 1 PID: 936 at /home/kernel/COD/linux/drivers/gpu/drm/i915/intel_display.c:1260 assert_plane.constprop.85+0x7a/0xb0 [i915]() [ 372.015560] plane A assertion failure (expected on, current off) [ 372.015576] Modules linked in: ctr ccm binfmt_misc rfcomm bnep nls_iso8859_1 arc4 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi intel_rapl iosf_mbi x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_hda_intel snd_hda_controller snd_hda_codec kvm uvcvideo snd_hwdep snd_pcm videobuf2_vmalloc videobuf2_memops iwlmvm snd_seq_midi snd_seq_midi_event videobuf2_core snd_rawmidi v4l2_common mac80211 videodev media snd_seq btusb joydev iwlwifi thinkpad_acpi serio_raw bluetooth snd_seq_device cfg80211 nvram snd_timer snd soundcore mac_hid mei_me lpc_ich shpchp mei parport_pc ppdev lp parport autofs4 dm_crypt crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd psmouse i915 ahci libahci e1000e ptp i2c_algo_bit pps_core [ 372.015578] drm_kms_helper drm wmi video [ 372.015580] CPU: 1 PID: 936 Comm: Xorg Tainted: G W 4.0.0-040000rc5-generic #201503230035 [ 372.015580] Hardware name: LENOVO 20BSCTO1WW/20BSCTO1WW, BIOS N14ET25W (1.03 ) 12/01/2014 [ 372.015582] 00000000000004ec ffff8802424cb6c8 ffffffff817dfeea 000000000000363c [ 372.015583] ffff8802424cb718 ffff8802424cb708 ffffffff810791b7 ffff88024dc8e340 [ 372.015584] 0000000000000000 ffff88023f510000 ffff880243e54800 ffff88023f510000 [ 372.015585] Call Trace: [ 372.015588] [<ffffffff817dfeea>] dump_stack+0x45/0x57 [ 372.015592] [<ffffffff810791b7>] warn_slowpath_common+0x97/0xe0 [ 372.015593] [<ffffffff810792b6>] warn_slowpath_fmt+0x46/0x50 [ 372.015610] [<ffffffffc022e66a>] assert_plane.constprop.85+0x7a/0xb0 [i915] [ 372.015624] [<ffffffffc0239abe>] hsw_disable_ips+0x5e/0x1b0 [i915] [ 372.015637] [<ffffffffc0239e58>] intel_crtc_disable_planes+0x48/0x150 [i915] [ 372.015649] [<ffffffffc023a495>] haswell_crtc_disable+0x55/0x2d0 [i915] [ 372.015660] [<ffffffffc023ac18>] __intel_set_mode+0x1b8/0x3e0 [i915] [ 372.015676] [<ffffffffc023e778>] intel_crtc_set_config+0x408/0x4f0 [i915] [ 372.015689] [<ffffffffc00d4427>] ? drm_atomic_state_free+0x27/0x50 [drm] [ 372.015706] [<ffffffffc024ed3c>] ? intel_atomic_commit+0xcc/0x100 [i915] [ 372.015713] [<ffffffffc013495d>] ? drm_atomic_helper_plane_set_property+0x8d/0xc0 [drm_kms_helper] [ 372.015722] [<ffffffffc00c41e6>] drm_mode_set_config_internal+0x66/0x110 [drm] [ 372.015729] [<ffffffffc0137648>] restore_fbdev_mode+0xc8/0xf0 [drm_kms_helper] [ 372.015735] [<ffffffffc0139160>] drm_fb_helper_restore_fbdev_mode_unlocked+0x30/0x80 [drm_kms_helper] [ 372.015740] [<ffffffffc01391d4>] drm_fb_helper_set_par+0x24/0x50 [drm_kms_helper] [ 372.015756] [<ffffffffc024b44a>] intel_fbdev_set_par+0x1a/0x60 [i915] [ 372.015759] [<ffffffff81436893>] fb_set_var+0x283/0x3a0 [ 372.015761] [<ffffffff810b10d1>] ? update_curr+0x141/0x1f0 [ 372.015763] [<ffffffff8142d9b4>] fbcon_blank+0x1e4/0x2d0 [ 372.015766] [<ffffffff814c0230>] do_unblank_screen.part.22+0xa0/0x180 [ 372.015768] [<ffffffff814c035c>] do_unblank_screen+0x4c/0x80 [ 372.015770] [<ffffffff814b5825>] complete_change_console+0x65/0xf0 [ 372.015772] [<ffffffff814b69bd>] vt_ioctl+0x110d/0x1190 [ 372.015779] [<ffffffffc00b8c9e>] ? drm_ioctl+0x9e/0x590 [drm] [ 372.015783] [<ffffffff814a91f8>] tty_ioctl+0x418/0x980 [ 372.015785] [<ffffffff8123a504>] ? fsnotify+0x204/0x260 [ 372.015787] [<ffffffff8120e115>] do_vfs_ioctl+0x75/0x320 [ 372.015789] [<ffffffff811fb876>] ? vfs_write+0x196/0x1f0 [ 372.015791] [<ffffffff81218455>] ? __fget_light+0x25/0x70 [ 372.015793] [<ffffffff8120e451>] SyS_ioctl+0x91/0xb0 [ 372.015795] [<ffffffff817ec6cd>] system_call_fastpath+0x16/0x1b [ 372.015796] ---[ end trace e72efca01d0fd8ae ]--- [ 377.884971] [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: xorg 1:7.7+7ubuntu4 Uname: Linux 4.0.0-040000rc5-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 2.16.2-0ubuntu4 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: Wed Mar 25 17:45:39 2015 DistUpgraded: Fresh install DistroCodename: vivid DistroVariant: ubuntu ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Device [17aa:2227] InstallationDate: Installed on 2015-03-23 (2 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Alpha amd64 (20150323) MachineType: LENOVO 20BSCTO1WW ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.0.0-040000rc5-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 12/01/2014 dmi.bios.vendor: LENOVO dmi.bios.version: N14ET25W (1.03 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BSCTO1WW dmi.board.vendor: LENOVO dmi.board.version: SDK0E50512 STD dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN14ET25W(1.03):bd12/01/2014:svnLENOVO:pn20BSCTO1WW:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BSCTO1WW:rvrSDK0E50512STD:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BSCTO1WW dmi.product.version: ThinkPad X1 Carbon 3rd dmi.sys.vendor: LENOVO version.compiz: compiz 1:0.9.12.1+15.04.20150303-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.59-0ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 10.5.0-0ubuntu1 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 10.5.0-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.17.1-0ubuntu3 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.9.0-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.5.0-1ubuntu2 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917-1~exp1ubuntu2build1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.11-1ubuntu2build1 xserver.bootTime: Wed Mar 25 17:38:55 2015 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 1049 vendor LGD xserver.version: 2:1.17.1-0ubuntu3 ** Affects: xserver-xorg-video-intel Importance: Medium Status: Fix Released ** Affects: xserver-xorg-video-intel (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug bios-outdated-1.10 compiz-0.9 ubuntu vivid -- Intel Display i915 driver crashes, Thinkpad X1 carbon Gen 3 https://bugs.launchpad.net/bugs/1436590 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. _______________________________________________ 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
