*** This bug is a duplicate of bug 1626935 ***
https://bugs.launchpad.net/bugs/1626935
Thank you for taking the time to report this bug and helping to make
Ubuntu better. This particular bug has already been reported and is a
duplicate of bug 1626935, so it is being marked as such. Please look at
the other bug report to see if there is any missing information that you
can provide, or to see if there is a workaround for the bug.
Additionally, any further discussion regarding the bug should occur in
the other report. Feel free to continue to report any other bugs you may
find.
** This bug has been marked a duplicate of bug 1626935
[yakkety] desktop is black and/or flickering after plugging in a second
monitor
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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:
Confirmed
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.
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