Seems to only affect Displayport (needed for high resolution). After screen gets black, can switch monitor setting to HDMI. Then screen is showing something again (in FHD resolution). xrandr shows DP as disconnected.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1607774 Title: i915 kernel module stops working occasionally Status in xserver-xorg-video-intel package in Ubuntu: Confirmed Bug description: Occasionally my screen gets black. The machine is still alive, can login via ssh. journalctl -k -b-2 | grep drm Jul 26 10:22:34 kernel: [drm] Initialized drm 1.1.0 20060810 Jul 26 10:22:34 kernel: [drm] Memory usable by graphics device = 2048M Jul 26 10:22:34 kernel: fb: switching to inteldrmfb from VESA VGA Jul 26 10:22:34 kernel: [drm] Replacing VGA console driver Jul 26 10:22:34 kernel: [drm] Supports vblank timestamp caching Rev 2 (21.10.2013). Jul 26 10:22:34 kernel: [drm] Driver supports precise vblank timestamp query. Jul 26 10:22:34 kernel: [drm:intel_opregion_init [i915]] *ERROR* No ACPI video bus found Jul 26 10:22:34 kernel: [drm] Initialized i915 1.6.0 20151010 for 0000:00:02.0 on minor 0 Jul 26 10:22:34 kernel: [drm] GMBUS [i915 gmbus vga] timed out, falling back to bit banging on pin 2 Jul 26 10:22:34 kernel: fbcon: inteldrmfb (fb0) is primary device Jul 26 10:22:34 kernel: i915 0000:00:02.0: fb0: inteldrmfb frame buffer device Jul 27 16:25:30 kernel: [drm] stuck on render ring Jul 27 16:25:30 kernel: [drm] GPU HANG: ecode 6:0:0x85eefffc, in chromium-browse [18427], reason: Ring hung, action: reset Jul 27 16:25:30 kernel: [drm] GPU hangs can indicate a bug anywhere in the entire gfx stack, including userspace. Jul 27 16:25:30 kernel: [drm] Please file a _new_ bug report on bugs.freedesktop.org against DRI -> DRM/Intel Jul 27 16:25:30 kernel: [drm] drm/i915 developers can then reassign to the right component if it's not a kernel issue. Jul 27 16:25:30 kernel: [drm] The gpu crash dump is required to analyze gpu hangs, so please always attach it. Jul 27 16:25:30 kernel: [drm] GPU crash dump saved to /sys/class/drm/card0/error Jul 27 16:25:30 kernel: drm/i915: Resetting chip after gpu hang Jul 27 16:36:14 kernel: [drm] stuck on render ring Jul 27 16:36:14 kernel: [drm] GPU HANG: ecode 6:0:0x85eefffc, in chromium-browse [26940], reason: Ring hung, action: reset Jul 27 16:36:14 kernel: drm/i915: Resetting chip after gpu hang Jul 27 17:28:30 kernel: [drm] stuck on render ring Jul 27 17:28:30 kernel: [drm] GPU HANG: ecode 6:0:0x85eefffc, in chromium-browse [27028], reason: Ring hung, action: reset Jul 27 17:28:30 kernel: drm/i915: Resetting chip after gpu hang Jul 27 18:55:17 kernel: [drm] stuck on render ring Jul 27 18:55:17 kernel: [drm] GPU HANG: ecode 6:0:0x85eecffc, in plasmashell [27304], reason: Ring hung, action: reset Jul 27 18:55:17 kernel: drm/i915: Resetting chip after gpu hang Jul 27 18:55:23 kernel: [drm] stuck on render ring Jul 27 18:55:23 kernel: [drm] GPU HANG: ecode 6:0:0x85eeeffc, in plasmashell [27304], reason: Ring hung, action: reset Jul 27 18:55:23 kernel: drm/i915: Resetting chip after gpu hang Jul 27 18:55:29 kernel: [drm] stuck on render ring Jul 27 18:55:29 kernel: [drm] GPU HANG: ecode 6:0:0x85eefffc, in chromium-browse [27590], reason: Ring hung, action: reset Jul 27 18:55:29 kernel: drm/i915: Resetting chip after gpu hang Jul 28 15:24:23 kernel: [drm] stuck on render ring Jul 28 15:24:23 kernel: [drm] GPU HANG: ecode 6:0:0xbc17ffff, in chromium-browse [29032], reason: Ring hung, action: reset Jul 28 15:24:23 kernel: drm/i915: Resetting chip after gpu hang Jul 28 18:04:52 kernel: [drm:intel_dp_link_training_clock_recovery [i915]] *ERROR* failed to enable link training Jul 28 18:04:52 kernel: [drm:intel_dp_link_training_channel_equalization [i915]] *ERROR* failed to start channel equalization The error Jul 26 10:22:34 kernel: [drm:intel_opregion_init [i915]] *ERROR* No ACPI video bus found happens at every boot The last two errors coincide with the times the screen gets blank. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xserver-xorg-video-intel 2:2.99.917+git20160325-1ubuntu1 ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13 Uname: Linux 4.4.0-31-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' CompositorRunning: None CurrentDesktop: KDE Date: Fri Jul 29 08:45:47 2016 DistUpgraded: 2016-04-26 11:22:19,544 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: xenial DistroVariant: kubuntu ExtraDebuggingInterest: No GraphicsCard: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:0102] (rev 09) (prog-if 00 [VGA controller]) Subsystem: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller [8086:2001] InstallationDate: Installed on 2016-04-12 (107 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-31-generic root=UUID=f93cc9f4-e422-49f0-b9d8-5db514ce0a72 ro quiet splash vt.handoff=7 SourcePackage: xserver-xorg-video-intel UpgradeStatus: Upgraded to xenial on 2016-04-26 (93 days ago) dmi.bios.date: 10/07/2011 dmi.bios.vendor: Intel Corp. dmi.bios.version: BLH6710H.86A.0132.2011.1007.1505 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: DH67GD dmi.board.vendor: Intel Corporation dmi.board.version: AAG10206-206 dmi.chassis.type: 3 dmi.modalias: dmi:bvnIntelCorp.:bvrBLH6710H.86A.0132.2011.1007.1505:bd10/07/2011:svn:pn:pvr:rvnIntelCorporation:rnDH67GD:rvrAAG10206-206:cvn:ct3:cvr: version.compiz: compiz 1:0.9.12.2+16.04.20160714-0ubuntu1 version.ia32-libs: ia32-libs N/A version.libdrm2: libdrm2 2.4.67-1ubuntu0.16.04.1 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 2:1.18.3-1ubuntu2.2 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 Jul 29 08:06:24 2016 xserver.configfile: default xserver.devices: input Power Button KEYBOARD, id 6 input Power Button KEYBOARD, id 7 input Logitech Logitech USB Keyboard KEYBOARD, id 8 input Logitech USB Optical Mouse MOUSE, id 9 xserver.errors: xserver.logfile: /var/log/Xorg.0.log xserver.outputs: xserver.version: 2:1.18.3-1ubuntu2.2 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1607774/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
