Public bug reported:
My monitors become unavailable and hard to configure after blanking, or
switching to a different input, let alone unplugging.
I can boot into 14.04 and do not see this problem. It is present in
16.04. I did not use the releases in between on this system.
It is a core-i7 machine, so the graphics is Intel and is on the
motherboard. I'm using all three of the outputs provided by my
Z97-Deluxe mobo. I have had to disable blanking because otherwise I
will definitely have at least one monitor no longer active when I wake
up the system. Getting it active again requires a number, at least 3,
of attempts to "use this monitor" in the Display widget. plus un-
mirroring and putting it back in its proper place.
This also happens if I switch the monitors to using another input, which
I wanted to do because I have two systems and I'd like to switch the
monitors between them. I'm having to use a workspace of ssh+tmux
instances instead, which has some drawbacks of its own, but is at least
workable.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: apport 2.20.1-0ubuntu2.1
ProcVersionSignature: Ubuntu 4.4.0-45.66-generic 4.4.21
Uname: Linux 4.4.0-45-generic x86_64
NonfreeKernelModules: wl
ApportLog:
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Fri Oct 28 12:50:37 2016
InstallationDate: Installed on 2016-08-08 (80 days ago)
InstallationMedia: Xubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
PackageArchitecture: all
SourcePackage: apport
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: apport (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1637629
Title:
monitors become unavailable after blanking
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