This problem was present from the beginning. Unfortunately I have not found the time to test the upstream kernel, but I fount a workaround for now. Interestingly there is no problem when I turn off the workspaces feature in Unity and only work on one desktop.
Nevertheless I will test the upstream kernel as soon as I find time. Thank you for your help! -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1645148 Title: Short black screens and sometimes complete crash/freeze Status in linux package in Ubuntu: Incomplete Bug description: When I use Wolfram Mathematica, sometimes while typing the screen becomes black for a very short time. Most of the times nothing happens, but sometimes after the black screen the computer is completely frozen, not even the Magic SysRQ keys work any more. The error seems to be similar to this one: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1550779 but it seems that the complete crash of the system did not appear there. This happens on Mathematica 10 as well as 11. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-27-generic 4.8.0-27.29 ProcVersionSignature: Ubuntu 4.8.0-27.29-generic 4.8.1 Uname: Linux 4.8.0-27-generic x86_64 ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: chris 2173 F.... pulseaudio CurrentDesktop: Unity Date: Sun Nov 27 23:03:05 2016 HibernationDevice: RESUME=UUID=36c59c75-b6bd-4c04-80b8-0d3f92e80a2b InstallationDate: Installed on 2016-07-29 (121 days ago) InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 138a:0017 Validity Sensors, Inc. Fingerprint Reader Bus 001 Device 004: ID 5986:0706 Acer, Inc Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: LENOVO 20FMS03600 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.8.0-27-generic root=UUID=2c1382ae-d83b-4b08-aa85-e6da74ec4308 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.8.0-27-generic N/A linux-backports-modules-4.8.0-27-generic N/A linux-firmware 1.161 SourcePackage: linux UpgradeStatus: Upgraded to yakkety on 2016-10-13 (45 days ago) dmi.bios.date: 03/23/2016 dmi.bios.vendor: LENOVO dmi.bios.version: R06ET36W (1.10 ) dmi.board.asset.tag: Not Available dmi.board.name: 20FMS03600 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:bvrR06ET36W(1.10):bd03/23/2016:svnLENOVO:pn20FMS03600:pvrThinkPadT460:rvnLENOVO:rn20FMS03600:rvrNotDefined:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20FMS03600 dmi.product.version: ThinkPad T460 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1645148/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
