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 v4.11 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/v4.11-rc8 ** Changed in: linux (Ubuntu) Importance: Undecided => High ** 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/1687397 Title: Kernel freeze when plugging in external monitor via USB-C->DP-Adapter Status in linux package in Ubuntu: Incomplete Bug description: When plugging in/out my external monitor (Acer B286HK) via an USB-C -> DP Adapter, there is a great chance, that the computer completely freezes. SysReq-Keys are also not working. I added a kernel.log where you can see the boot-up after one crash, than plugging In/Out the monitor several times till a new complete freeze. The graphics-card is the internal one of Core(TM) i7-7500Uin of the XPS13 MLK (9360). ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-75-generic 4.4.0-75.96 ProcVersionSignature: Ubuntu 4.4.0-75.96-generic 4.4.59 Uname: Linux 4.4.0-75-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: eiko 2382 F.... pulseaudio /dev/snd/controlC0: eiko 2382 F.... pulseaudio CurrentDesktop: Unity Date: Mon May 1 13:25:42 2017 DistributionChannelDescriptor: # This is a distribution channel descriptor # For more information see http://wiki.ubuntu.com/DistributionChannelDescriptor canonical-oem-somerville-xenial-amd64-20160624-2 EcryptfsInUse: Yes HibernationDevice: RESUME=UUID=baaa9d41-2d3b-4937-82f8-e923789084a5 InstallationDate: Installed on 2016-12-03 (148 days ago) InstallationMedia: Ubuntu 16.04 "Xenial" - Build amd64 LIVE Binary 20160624-10:47 MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-75-generic.efi.signed root=UUID=758f75ff-3e8f-4d25-8419-f30f215feee3 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-75-generic N/A linux-backports-modules-4.4.0-75-generic N/A linux-firmware 1.164 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/18/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.3.2 dmi.board.name: 0839Y6 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.3.2:bd01/18/2017:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn0839Y6:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687397/+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