compiz team mailing list archive

[Launchpad Bug Tracker <995659@xxxxxxxxxxxxxxxxxx>]

You have been subscribed to a public bug:

Steps to reproduce, under Unity 3D with the Nvidia proprietary driver
(on my machine, GeForce GT 240):

1. Minimize a window, by any means, mouse or keyboard.

2. Restore it with the Alt-` key.  You can Alt-Tab through the window
spread, Alt-` just needs to be the last key you hit, to activate the
window.

3. Repeat if necessary.  It does not happen every time, for me, but
generally within three tries.

    * Once you have done this, window will show as blank, in the spread.

    * I think for some similar bugs, the window would be blank in the
spread, right after being minimized.  Not the case, here.

4. Un-maximize the window, and the content will re-appear.

    * Sometimes, it will reappear under other conditions.  I don't have
a strict definition for this yet.  These operations restored the content
with other apps, but not with Firefox:

       Minimize again, then restore with Alt-Tab or the mouse.  I was
able to repeat this with Totem, just now.

       Switch to another window of the same app, then back.  I was able
to repeat this with EoG.

-----

Bug 938658 was also about blank windows when restoring from minimized.
The conditions were a bit different.  To help triage this, here are a
couple comments from there -- one by the maintainer, and one from
another user confirming this problem.

Didier Roche (didrocks) wrote on 2012-04-24:    #54

  @Edward: I suggest that you open another bug report describing exactly
the condition for the remaining issues (quite a lot of noise in that bug
report). I'll then have a look at it and see if it can be worked for a
stable release update :)

Rainer Rohde (rainer-rohde) wrote on 2012-05-02:        #57

  In-line with comment #56, I can confirm that the Alt-` (grave accent)
window switch produces a blank window several times in a row, while Alt-
Tab and maximizing by mouse works just fine.

-----

DistroRelease: Ubuntu 12.04
Package: unity 5.12-0ubuntu1
NonfreeKernelModules: nvidia
Architecture: amd64

** Affects: nvidia-drivers-ubuntu
     Importance: Undecided
         Status: New

** Affects: compiz (Ubuntu)
     Importance: Undecided
         Status: Confirmed

-- 
[nvidia]  Blank windows when you Minimize, then Restore with Alt-` (Alt-Grave)
https://bugs.launchpad.net/bugs/995659
You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu.