*** 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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Packages, which is subscribed to linux in Ubuntu.
https://bugs.launchpad.net/bugs/1634449
Title:
Black flicker when leaving monitor
Status in linux package in Ubuntu:
Triaged
Bug description:
Sometimes, when moving cursor from one monitor to the other, the
external monitor turns black and gets back on again.
The hardware is Dell Latitude E5470 with Docking Station and monitor
connected via DisplayPort (checked both ports and happens on both of
them).
Everything worked correctly on Ubuntu 16.04, but it happens on Ubuntu
16.10. Kernel 4.8.0-25-generic.
The bug isn't related to cursor only, if focus changes by alt+tab it
sometimes happens as well.
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1553503 This is the same
bug as this one, but closed.
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ApportVersion: 2.20.3-0ubuntu8
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0p: vessel 5602 F...m pulseaudio
/dev/snd/controlC0: vessel 5602 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.10
HibernationDevice: RESUME=UUID=56fab9c8-7226-47b9-91cb-a2c865f81bc0
InstallationDate: Installed on 2016-08-31 (47 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64
(20160719)
MachineType: Dell Inc. Latitude E5470
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.8.0-25-generic.efi.signed
root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.8.0-25.27-generic 4.8.1
RelatedPackageVersions:
linux-restricted-modules-4.8.0-25-generic N/A
linux-backports-modules-4.8.0-25-generic N/A
linux-firmware 1.161
Tags: yakkety
Uname: Linux 4.8.0-25-generic x86_64
UpgradeStatus: Upgraded to yakkety on 2016-10-14 (3 days ago)
UserGroups: adm cdrom dip docker lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 06/15/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.7.3
dmi.board.name: 0P88J9
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 9
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvr1.7.3:bd06/15/2016:svnDellInc.:pnLatitudeE5470:pvr:rvnDellInc.:rn0P88J9:rvrA00:cvnDellInc.:ct9:cvr:
dmi.product.name: Latitude E5470
dmi.sys.vendor: Dell Inc.
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