Public bug reported:
To reproduce:
1.) Open VLC (or SMplayer or any app in fullscreen mode).
2.) Start watching a movie and go to fullscreen mode.
3.) Alt+tab to another open application
4.) Alt+tab back to VLC
After getting back to VLC you will see a white stripe on the top of the screen
as on the attached screenshot.
I have tried this with other applications like Firefox and the default video
player (Totem).
They produce a slightly different symptoms as they also have a white stripe on
the left of the screen besides the top, but I would bet it is the same bug.
In Totem the white stripes are also blinking a bit.
I'm attaching 2 screenshots.
1.) After starting VLC where everything is okay.
2.) After alt+tab ing with VLC where the white stripe is already displayed.
I'm using gnome-session-flashback (gnome-panel) with metacity.
I'm not sure which of them is responsible for this or if one of them even is
but they seem to be the best candidates.
I have also installed Xfce on the same machine and players started in
Xfce do not produce similar problems.
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: metacity 1:2.34.13-0ubuntu4
ProcVersionSignature: Ubuntu 3.13.0-46.75-generic 3.13.11-ckt15
Uname: Linux 3.13.0-46-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.7
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Mar 1 14:54:32 2015
SourcePackage: metacity
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: gnome-panel (Ubuntu)
Importance: Undecided
Status: New
** Affects: metacity (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug trusty
** Attachment added: "after_starting_vlc_in_fullscreen.png"
https://bugs.launchpad.net/bugs/1426887/+attachment/4331223/+files/after_starting_vlc_in_fullscreen.png
** Also affects: gnome-panel (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1426887
Title:
Full screen app has a white stripe on top after switching to another
window
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