Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.6 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.6-rc1-wily/ ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Tags added: kernel-da-key ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1563146 Title: lockup when using DVI and display port with skylake Status in linux package in Ubuntu: Incomplete Bug description: When using dual monitors, one connected to the dvi port, and one connected to the display port, and when nxclient 3.5.0-7 is running, the kernel will lock up about once a day, sometimes more often. after it has locked up, the mouse cursor doesn't move, caps lock doesn't toggle the keyboard light, the pc can't be pinged, there is nothing written in the logs about the crash. If nxclient isn't running, it doesn't lock up. I don't think it has locked up since switching to vga and dvi. I believe this is a skylake problem. I'm able to help test and debug if required and given instructions. ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: linux-image-4.2.0-34-generic 4.2.0-34.39 ProcVersionSignature: Ubuntu 4.2.0-34.39-generic 4.2.8-ckt4 Uname: Linux 4.2.0-34-generic x86_64 ApportVersion: 2.19.1-0ubuntu5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: michael 1805 F.... pulseaudio CurrentDesktop: GNOME Date: Tue Mar 29 12:26:58 2016 HibernationDevice: RESUME=UUID=d420eadc-7df8-467a-a6f6-f8e02376eb4a InstallationDate: Installed on 2016-01-12 (76 days ago) InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021) IwConfig: enp3s0 no wireless extensions. lo no wireless extensions. Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 003: ID 046d:c31c Logitech, Inc. Keyboard K120 Bus 001 Device 004: ID 046d:c03d Logitech, Inc. M-BT96a Pilot Optical Mouse Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: System manufacturer System Product Name ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.2.0-34-generic root=/dev/mapper/ubuntu--vg-root ro i915.preliminary_hw_support=1 i915.ips=0 quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.2.0-34-generic N/A linux-backports-modules-4.2.0-34-generic N/A linux-firmware 1.149.3 RfKill: SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 11/16/2015 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0902 dmi.board.asset.tag: Default string dmi.board.name: H170M-E D3 dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0902:bd11/16/2015:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnH170M-ED3:rvrRevX.0x:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1563146/+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
