Created attachment 530168 [details]
Description of problem:
Portions of the display (often window shadows) occasionally becomes corrupted.
Version-Release number of selected component (if applicable):
F14 latest packages (except currently running kernel) as of Oct 25, 2011
(not sure what else to provide; please ask)
Sometimes... not reliable, but usually seen at least once a week.
Steps to Reproduce:
Corruption appears visually identical (if not nearly as severe) as that mentioned in bug 738790; possibly the same issue?
Types of corruption seen:
- certain font glyphs become random pixels (but correct color)
- pixmaps (background fills, icons, window shadow/glow tiles) corrupted with random pixels; sometimes from the same image but as if row stride is off... often only part of the image is corrupted, usually in large horizontal or vertical stripes
Small example attached (when I took this, only a small area of my task bar was being affected, and it subsequently went away).
Created attachment 531188 [details]
more interesting example
Here is a more interesting example... looks like initializing pixmaps with transparent is instead initializing them with a random (including alpha channel) solid color.
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