Public bug reported:
I experience the following bug after updating Ubuntu 14.04. on a Dell
Latitude Laptop for Hardware Enablement Stack some days ago:
Dual Monitor Screen:
When the mouse cursor leaves one of the screens, there is either :
- no problem
- the screen becomes black just below the position of the cursor and instantly
comes back to normal.
- the screen becomes entirely black with some random colored pixels flickering
on the far left of the screen. I have to move the cursor to the black screen,
otherwise it stays black.
After the update my kernel version is 4.4.0-36-generic, and my Ubuntu is
Ubuntu 14.04.5 LTS
Thank you,
Janek Greskowiak
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: linux-image-4.4.0-36-generic 4.4.0-36.55~14.04.1
ProcVersionSignature: Ubuntu 4.4.0-36.55~14.04.1-generic 4.4.16
Uname: Linux 4.4.0-36-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.21
Architecture: amd64
CurrentDesktop: Unity
Date: Sat Sep 3 19:03:09 2016
InstallationDate: Installed on 2016-02-27 (189 days ago)
InstallationMedia: Ubuntu 14.04.3 LTS "Trusty Tahr" - Beta amd64 (20150805)
SourcePackage: linux-lts-xenial
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: linux-lts-xenial (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
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https://bugs.launchpad.net/bugs/1619939
Title:
multi monitors - black flashes or black screen when the mouse cursor
leaves a monitor
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