Unfortunately this bug was reported while running an unsupported kernel (4.20.0-994-generic) so we are unable to support it here.
Please switch back to the standard Ubuntu kernel and then log a new bug from there by running: ubuntu-bug linux ** Package changed: xorg (Ubuntu) => linux (Ubuntu) ** Changed in: linux (Ubuntu) Status: New => Invalid -- 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/1804885 Title: Desktop freeze running VirtualBox, Intel graphics Status in linux package in Ubuntu: Invalid Bug description: When I start a VirtualBox virtual machine (reproducible with the Ubuntu 18.04/VirtualBox 5.2.22 packages from virtualbox.org) with VMSVGA emulation and 3D pass-through enabled, my system hangs. Sometimes I can recover if I get to a VT fast enough to kill the process. Also, the OOM killer sometimes triggers and kills the process or gnome-shell, but the OOM killer entries in dmesg look like neither of the two are using excessive memory compared to available system RAM. When I switch to the Ubuntu drm-tip kernel packages from the kernel PPA the problem goes away. Debugging shows that the hang occurs during the first glXMakeCurrent call made by the application. It did not occur using the standard Ubuntu kernel but running the application under apitrace. I can provide the trace if that helps. Short extract from glxinfo running the 4.20 drm-tip kernel: Extended renderer info (GLX_MESA_query_renderer): Vendor: Intel Open Source Technology Center (0x8086) Device: Mesa DRI Intel(R) HD Graphics 620 (Kaby Lake GT2) (0x5916) Version: 18.2.2 Accelerated: yes Video memory: 3072MB Unified memory: yes Preferred profile: core (0x1) Max core profile version: 4.5 Max compat profile version: 3.0 Max GLES1 profile version: 1.1 Max GLES[23] profile version: 3.2 ProblemType: Bug DistroRelease: Ubuntu 18.10 Package: xorg 1:7.7+19ubuntu8 Uname: Linux 4.20.0-994-generic x86_64 ApportVersion: 2.20.10-0ubuntu13.1 Architecture: amd64 BootLog: Error: [Errno 13] Отказано в доступе: '/var/log/boot.log' CasperVersion: 1.399 CompositorRunning: None CurrentDesktop: ubuntu:GNOME Date: Fri Nov 23 21:13:00 2018 DistUpgraded: 2018-10-08 10:28:22,218 DEBUG Running PostInstallScript: './xorg_fix_proprietary.py' DistroCodename: cosmic DistroVariant: ubuntu ExtraDebuggingInterest: Yes, including running git bisection searches GpuHangFrequency: Several times a day GpuHangReproducibility: Yes, I can easily reproduce it GpuHangStarted: Immediately after installing this version of Ubuntu GraphicsCard: Intel Corporation HD Graphics 620 [8086:5916] (rev 02) (prog-if 00 [VGA controller]) Subsystem: Lenovo HD Graphics 620 [17aa:2245] InstallationDate: Installed on 2018-06-12 (164 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) LiveMediaBuild: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) MachineType: LENOVO 20HES0E73E ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.20.0-994-generic root=/dev/mapper/ubuntu--vg-root ro scsi_mod.use_blk_mq=1 quiet splash crashkernel=384M-:128M SourcePackage: xorg Symptom: display Title: Xorg freeze UpgradeStatus: Upgraded to cosmic on 2018-10-08 (46 days ago) dmi.bios.date: 09/13/2018 dmi.bios.vendor: LENOVO dmi.bios.version: N1QET78W (1.53 ) dmi.board.asset.tag: Not Available dmi.board.name: 20HES0E73E dmi.board.vendor: LENOVO dmi.board.version: Not Defined dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrN1QET78W(1.53):bd09/13/2018:svnLENOVO:pn20HES0E73E:pvrThinkPadT470:rvnLENOVO:rn20HES0E73E:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.family: ThinkPad T470 dmi.product.name: 20HES0E73E dmi.product.sku: LENOVO_MT_20HE_BU_Think_FM_ThinkPad T470 dmi.product.version: ThinkPad T470 dmi.sys.vendor: LENOVO version.compiz: compiz N/A version.libdrm2: libdrm2 2.4.95-1 version.libgl1-mesa-dri: libgl1-mesa-dri 18.2.2-0ubuntu1 version.libgl1-mesa-glx: libgl1-mesa-glx 18.2.2-0ubuntu1 version.xserver-xorg-core: xserver-xorg-core 2:1.20.3-0~ubuntu18.10.1~ppa1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev N/A version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:18.1.0-1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.917+git20171229-1ubuntu1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-3 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1804885/+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