[Bug 1376243] [NEW] Intermitent freeze of window, goes grey when changing workspaces in awesomevm

[Arthur Lutz (Logilab)]

Public bug reported:

This is probably a gtk bug but I don't know on whih package I should put
it.  The main application on which I encounter this bug is
fireworfirefox so amposting it here.

Every few seconds or few minutes I get a freeze on firefox. At first I
thought it was just on videos (and the sound keeps on going) but as a
matter of fact it's the whole window even when not showing a video. For
example, as am I typing this, twice since I began, the text stops
showing, I keep on typing and then it appears.

I am using awesomewm as a window manager but I doubt the bug is there.
The QT apps are running fine. My thunderbird is even more freeze prone
that my firefox (for example openning a new mail window is really slow).
Sometimes when I click on a menu it will take time to appear and then if
I change workspaces it will appear on the other workspaces.

I thought it might be
https://bugs.launchpad.net/ubuntu/+source/emacs23/+bug/1142213 or
https://bugs.launchpad.net/ubuntu/+source/gtk2-engines-
oxygen/+bug/963736 but nothing fixed it. I tried disabling addons but
with no luck.

Am running trusty. This is becoming a blocking issue for me and would
greatly appreciate tips on how to debug it and fix it.

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1376243

Title:
  Intermitent freeze of window, goes grey when changing workspaces in
  awesomevm

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