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 => Medium -- 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/1687966 Title: Dell laptop crashes when sleeping after removing from docking station Status in linux package in Ubuntu: Confirmed Bug description: If I remove my laptop from the docking station, and then close the lid (which brings the computer to sleeping mode - "mise en veille" in French- meaning it turns off the screen), the computer freezes, stay black and the only thing I can do is to hardware reboot. 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/controlC0: steph 2120 F.... pulseaudio CurrentDesktop: Unity Date: Wed May 3 08:59:48 2017 HibernationDevice: RESUME=UUID=fff995fa-c753-4ead-b49f-b24880af86f6 MachineType: Dell Inc. Latitude E7270 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-75-generic root=UUID=5974b776-ac48-449b-9db5-c46ef7feabda 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 1.157.8 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 04/18/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 1.5.3 dmi.board.name: 0K4CNR dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr1.5.3:bd04/18/2016:svnDellInc.:pnLatitudeE7270:pvr:rvnDellInc.:rn0K4CNR:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.name: Latitude E7270 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1687966/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
