I can confirm this on a fresh install of Lubuntu 16.04 on a relatively new laptop. This bug effectively renders the laptop useless.
Libreoffice crashes X regularly (!) and hence is not usable. When I look at /var/log/syslog the culprit is always something like: May 9 20:55:54 kermit kernel: [ 46.807723] [drm] GPU HANG: ecode 7:0:0x85fffdfc, in Xorg [812], reason: Ring hung, action: reset May 9 20:55:54 kermit kernel: [ 46.809807] drm/i915: Resetting chip after gpu hang This seems to be a well known problem with the i915 driver. I've tried some of the fixes that people suggest (adding various i915 options to grub like i915.enable_rc6=0 i915.semaphores=0 i915.modeset=1 i915.use_mmio_flip=1 i915.enable_ppgtt=1). But so fare nothing works. -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1575301 Title: GPU Hang [i915 / drm] crashes whole session; triggered by LibreOffice dialog boxes (regression) Status in xorg package in Ubuntu: Confirmed Bug description: This behavior began sometime in April 2016 (while using Ubuntu 16.04 Beta 2, Unity) and has continued to the present. Dialog boxes in LibreOffice (including the automated recovery dialog on LO start) started displaying garbled text and garbled or missing button icons. Interacting with them -- or often even their appearance at all -- causes a rapid crash of the whole graphical session and a free trip back to the login screen. Syslog shows a GPU hang (stuck on render ring). This is an Intel Core i7-4510U with Haswell-ULT Integrated Graphics Controller (HP Envy x360 convertible laptop). Before the upgrade from 15.10 to 16.04, I had the xorg-edgers repository enabled and then had used the installation tool from 01.org to install the Intel graphics stack. As part of troubleshooting this, I have removed/purged the 01.org sources/packages/modules as best I could (16.04 not supported) and also disabled the edgers repository. This has not affected the bug. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: xorg 1:7.7+13ubuntu3 ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6 Uname: Linux 4.4.0-21-generic x86_64 .tmp.unity_support_test.0: ApportVersion: 2.20.1-0ubuntu2 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 26 14:04:07 2016 DistUpgraded: 2016-03-26 18:47:13,658 DEBUG enabling apt cron job DistroCodename: xenial DistroVariant: ubuntu DkmsStatus: fwts-efi-runtime-dkms, 16.03.00, 4.4.0-16-generic, x86_64: installed fwts-efi-runtime-dkms, 16.03.00, 4.4.0-18-generic, x86_64: installed fwts-efi-runtime-dkms, 16.03.00, 4.4.0-21-generic, x86_64: installed vboxhost, 5.0.18, 4.4.0-18-generic, x86_64: installed vboxhost, 5.0.18, 4.4.0-21-generic, x86_64: installed ExtraDebuggingInterest: Yes GraphicsCard: Intel Corporation Haswell-ULT Integrated Graphics Controller [8086:0a16] (rev 0b) (prog-if 00 [VGA controller]) Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics Controller [103c:22d6] InstallationDate: Installed on 2014-08-10 (625 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: Hewlett-Packard HP ENVY 15 x360 PC PlymouthDebug: Error: [Errno 13] Permission denied: '/var/log/plymouth-debug.log' ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-21-generic.efi.signed root=UUID=5ad8035a-f2a4-4334-84d8-e2a8a7396bf8 ro quiet splash vt.handoff=7 SourcePackage: xorg UpgradeStatus: Upgraded to xenial on 2016-03-26 (30 days ago) dmi.bios.date: 01/19/2015 dmi.bios.vendor: Insyde dmi.bios.version: F.26 dmi.board.asset.tag: Type2 - Board Asset Tag dmi.board.name: 22D6 dmi.board.vendor: Hewlett-Packard dmi.board.version: 89.23 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnInsyde:bvrF.26:bd01/19/2015:svnHewlett-Packard:pnHPENVY15x360PC:pvr0974100022405F00000420180:rvnHewlett-Packard:rn22D6:rvr89.23:cvnHewlett-Packard:ct10:cvrChassisVersion: dmi.product.name: HP ENVY 15 x360 PC dmi.product.version: 0974100022405F00000420180 dmi.sys.vendor: Hewlett-Packard 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 N/A version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.12-1build2 xserver.bootTime: Tue Apr 26 14:02:01 2016 xserver.configfile: default xserver.errors: Failed to load module "intel" (module does not exist, 0) Failed to load module "intel" (module does not exist, 0) xserver.logfile: /var/log/Xorg.0.log xserver.version: 2:1.18.3-1ubuntu2 xserver.video_driver: modeset To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1575301/+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