https://bugs.freedesktop.org/show_bug.cgi?id=78703

--- Comment #14 from ablumer <[email protected]> ---
I just installed 4.3.3.2 and the white flash just happened.

I have a theory about what is happening. Through the year and a half that I've
had to do presentations regularly, I have usually seen this problem, but as I
went from one version of LibreOffice to the next, its behavior changed
slightly. E.g., for 4.3.2.2 and 4.3.3.2, the flash does not usually occur, but
for earlier versions, it usually did occur.

Because of the nature of the variations, I think that the performance of my
computer may be a factor. When I use a cpufreq applet to keep the processor
running full speed, I do not believe I have seen the flash occur. So I suspect
there is a race between drawing in a buffer and the graphics code displaying
it. Perhaps the buffer is being displayed before it has been filled, and thus
we see a flash.

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