I tried an upstream kernel ( 4.4.12-040412-generic #201606011712 ). Attaching after suspend/resume no longer results in a crash.
The screen frequently fails to restore on the first try. dmesg has these lines in that case: [drm:intel_mst_disable_dp [i915]] *ERROR* failed to update payload -22 [drm] GPU HANG: ecode 8:-1:0x00000000, reason: Kicking stuck wait on blitter ring, action: continue [drm:intel_cpu_fifo_underrun_irq_handler [i915]] *ERROR* CPU pipe A FIFO underrun But, in an improvement from the Ubuntu kernel, I can unplug and try again with success. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1581560 Title: system crash when attaching external display Status in xorg package in Ubuntu: New Bug description: After upgrading to 16.04, my thinkpad x1 carbon (3rd edition) freezes and reboots when I attach an external display. Process: - put laptop to sleep. - come into work the next day - open up laptop - plug in external display - observe bug Expected behavior: I can attach the external display Observed behavior: system shows black screen on both laptop and display and after a minute or two reboots. Laptop drives external display fine after reboot. I ssh to the laptop from another machine and monitored /var/log/syslog, /var/log/Xorg.0.log, and ~/.xsession-errors. All I see in those files before the lockup is this, from Xorg.0.log: [ 34289.447] (II) intel(0): Enabled output DP1-8 [ 34289.448] (II) intel(0): Enabled output DP1-1 [ 34289.460] (II) intel(0): resizing framebuffer to 2560x1440 [ 34289.482] (II) intel(0): switch to mode 2560x1440@60.0 on DP1-8 using pipe 0, (0, 0), rotation normal, reflection none ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 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: Fri May 13 09:24:07 2016 DistUpgraded: 2016-04-21 20:51:13,846 ERROR got error from PostInstallScript ./xorg_fix_proprietary.py (g-exec-error-quark: Failed to execute child process "./xorg_fix_proprietary.py" (No such file or directory) (8)) DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: virtualbox, 5.0.18, 4.2.0-30-generic, x86_64: installed virtualbox, 5.0.18, 4.4.0-21-generic, x86_64: installed virtualbox, 5.0.18, 4.4.0-22-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Broadwell-U Integrated Graphics [8086:1616] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Lenovo Broadwell-U Integrated Graphics [17aa:2227] InstallationDate: Installed on 2015-09-10 (245 days ago) InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422) MachineType: LENOVO 20BS0031US ProcEnviron: LANGUAGE=en_US:en PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=en_US.UTF-8 SHELL=/bin/zsh ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-22-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-04-22 (21 days ago) dmi.bios.date: 05/08/2015 dmi.bios.vendor: LENOVO dmi.bios.version: N14ET29W (1.07 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BS0031US dmi.board.vendor: LENOVO dmi.board.version: SDK0E50510 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN14ET29W(1.07):bd05/08/2015:svnLENOVO:pn20BS0031US:pvrThinkPadX1Carbon3rd:rvnLENOVO:rn20BS0031US:rvrSDK0E50510WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BS0031US dmi.product.version: ThinkPad X1 Carbon 3rd dmi.sys.vendor: LENOVO drirc: version.compiz: compiz 1:0.9.12.2+16.04.20160415-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1 version.libgl1-mesa-dri: libgl1-mesa-dri 11.2.0-1ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 11.2.0-1ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.18.3-1ubuntu2 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.1-1ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.7.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Fri May 13 09:04:56 2016 xserver.configfile: default xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: product id 4669 vendor AUO xserver.version: 2:1.18.3-1ubuntu2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1581560/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
