https://bugs.freedesktop.org/show_bug.cgi?id=36934
--- Comment #16 from auxsvr@gmail.com 2011-10-23 01:49:26 PDT --- The type of minor, transient corruption described in comment 14 is this: some glyphs or stripes of a widget become transparent for some seconds or minutes. This is unlike the original corruption, which would garble the display, rendering X unusable.