Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: evince (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/1574617
Title:
External monitor keeps going blank
Status in evince package in Ubuntu:
Confirmed
Bug description:
I have an external monitor connected to my Thinkpad as an extended desktop.
On Ubuntu 15.10 it worked fine but in 16.04 it 'crashes' under certain
conditions.
When you move mouse from the external monitor across and hover over the
laptop screen the external monitor blanks out. It sometimes 'comes back to
life' after a few seconds. The monitor also sometimes drops out of it's own
accord and appears to be random.
The laptop isn't disconnecting from the monitor as if you take a screenshot
you'll still see your extended desktop with windows open but the monitor is no
longer detecting a signal from the laptop.
To 'fix' either:
1. Run startx
2. Change something in the display menu (ie. the resolution), basically
anything to force the laptop to 'update' the desktop and rescale
3. log out/shutdown/restart
4. Turn the monitor off and on, disconnect the cable (DisplayPort)
To be clear/Tldr; - this is not an issue with the monitor or cable, it
still works fine with other laptops and had been fine up until the
upgrade to 16.04. (When it initially started happening I assumed it
was a cable issue so I have swapped out the cable a couple of times)
and the monitor does not 'disconnect': just blanks out.
Hardware - Thinkpad T410 (Intel Ironlake)
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: evince 3.18.2-1ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-21.37-generic 4.4.6
Uname: Linux 4.4.0-21-generic x86_64
ApportVersion: 2.20.1-0ubuntu2
Architecture: amd64
CurrentDesktop: Unity
Date: Mon Apr 25 13:26:31 2016
EcryptfsInUse: Yes
InstallationDate: Installed on 2015-09-21 (216 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_GB.UTF-8
SHELL=/usr/bin/zsh
SourcePackage: evince
UpgradeStatus: Upgraded to xenial on 2016-04-22 (3 days ago)
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