N.B., this isn't triggered with a full-width panel.

** Summary changed:

- windows stop redrawing after some time
+ windows and panels stop redrawing

** Description changed:

- After leaving things alone for a while, the panel and some windows will
- stop redrawing in compiz. This presented itself as nm-applet failing to
- show changing networks status, but seems to be a more general
- phenomenon. I've not yet found any way to reliably reproduce it, but it
- does seem to happen fairly often under extended use.
+ Under some conditions, certain windows and panels will stop being
+ redrawn while using compiz. This persists until they are moved around or
+ minimized/restored. This is particularly bad with panels---while it
+ rapidly becomes apparent that an application has stopped visually
+ responding, there is usually no obvious sign at all that the panel has
+ stopped updating, resulting in reading the wrong time or in thinking
+ that panel applets are in a different state from reality.
+ 
+ One way to reliably reproduce this bug (as shown in the attached video)
+ is to, while connected to a wireless network, with applets in a non
+ –full-width panel, use nm-applet to initiate a connection to another
+ network. This causes the panel to stop responding, as well as certain
+ windows (observed with a full-screen Firefox window.)

-- 
windows and panels stop redrawing
https://bugs.launchpad.net/bugs/342980
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