Public bug reported: The update to linux-image 4.8.0-15-generic has caused both my laptop screen and external monitor screen to flicker at random intervals on my Skylake laptop, making the desktop annoyingly unusable at times. This issue is not present in the 4.7 or earlier kernels.
Upstream is aware of the issue: see https://bugs.freedesktop.org/show_bug.cgi?id=97450. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-15-generic 4.8.0-15.16 ProcVersionSignature: Ubuntu 4.8.0-15.16-generic 4.8.0-rc7 Uname: Linux 4.8.0-15-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rocko 4715 F.... pulseaudio CurrentDesktop: Unity Date: Sat Sep 24 07:29:44 2016 HibernationDevice: RESUME=UUID=deb8a0cb-a8a4-4ef6-a09d-7035635c87b7 InstallationDate: Installed on 2016-07-04 (81 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. MachineType: Dell Inc. XPS 15 9550 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-15-generic root=UUID=8de7ebec-48db-48b6-9eb9-fafdee4eb7d6 ro rootflags=subvol=@ quiet splash nogpumanager vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.8.0-15-generic N/A linux-backports-modules-4.8.0-15-generic N/A linux-firmware 1.161 SourcePackage: linux UpgradeStatus: Upgraded to yakkety on 2016-07-24 (61 days ago) WifiSyslog: dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. ** Affects: linux (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug yakkety -- 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/1627214 Title: Random display flickering on Kernel 4.8 with dual-screen Status in linux package in Ubuntu: New Bug description: The update to linux-image 4.8.0-15-generic has caused both my laptop screen and external monitor screen to flicker at random intervals on my Skylake laptop, making the desktop annoyingly unusable at times. This issue is not present in the 4.7 or earlier kernels. Upstream is aware of the issue: see https://bugs.freedesktop.org/show_bug.cgi?id=97450. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: linux-image-4.8.0-15-generic 4.8.0-15.16 ProcVersionSignature: Ubuntu 4.8.0-15.16-generic 4.8.0-rc7 Uname: Linux 4.8.0-15-generic x86_64 ApportVersion: 2.20.3-0ubuntu7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: rocko 4715 F.... pulseaudio CurrentDesktop: Unity Date: Sat Sep 24 07:29:44 2016 HibernationDevice: RESUME=UUID=deb8a0cb-a8a4-4ef6-a09d-7035635c87b7 InstallationDate: Installed on 2016-07-04 (81 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. MachineType: Dell Inc. XPS 15 9550 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/@/boot/vmlinuz-4.8.0-15-generic root=UUID=8de7ebec-48db-48b6-9eb9-fafdee4eb7d6 ro rootflags=subvol=@ quiet splash nogpumanager vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.8.0-15-generic N/A linux-backports-modules-4.8.0-15-generic N/A linux-firmware 1.161 SourcePackage: linux UpgradeStatus: Upgraded to yakkety on 2016-07-24 (61 days ago) WifiSyslog: dmi.bios.date: 04/07/2016 dmi.bios.vendor: Dell Inc. dmi.bios.version: 01.02.00 dmi.board.name: 0N7TVV dmi.board.vendor: Dell Inc. dmi.board.version: A01 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr01.02.00:bd04/07/2016:svnDellInc.:pnXPS159550:pvr:rvnDellInc.:rn0N7TVV:rvrA01:cvnDellInc.:ct9:cvr: dmi.product.name: XPS 15 9550 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1627214/+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
