[compiz] incomplete window contents when unminimizing

[Hendrik Kaju]

> Hi,
> 
> Using Xgl, when a window is unminimized, sometimes (especially with
> Firefox), the window contents are not immediately visible (partially
> or completely) until an unminimize animation is completed. That is,
> sometimes there are empty (transparent) rectangles within the window
> (maybe corresponding to some Mozilla controls), and sometimes the
> whole window is empty (only the decoration is visible). This is more
> of an issue with cpu-hungry effects (well, most of them if you are
> using Xgl + fglrx).
> 
> To avoid this, I want to wait until the window contents are *fully*
> available before I start any unminimize animations. My question is how
> can I know the right time? Is there a certain place in core that I can
> maybe throw a notification event from for this? If not, what is the
> best way to solve this problem? Should I just wait for a certain
> amount of time for certain applications (like Firefox)?
> 
> Cheers,
> Erkin

I can confirm this on OpenSuSE 10.2, i915 and Xorg 7.2. Firefox windows
are sometimes completely blank when unminimizing. Usually only some
parts are invisible (Firefox's toolbar). It doesn't happen with slow
animations on.
-- 
Hendrik Kaju <hendrik at kaju.pri.ee>