I believe this is
commit fb89bfc73f4103ca6116c8f91970f4bfa491636c
Author: Chris Wilson <[email protected]>
Date: Wed Feb 12 16:41:51 2014 +0000
sna/gen5: Flush the render cache between operations
When we change the blend mode between operations, it appears that we
must flush the render cache or else we risk render corruption. This is
usually noticeable in rendering of single glyphs.
This was originally fixed for bug 51422, but was reintroduced by
commit 37eb7343be1aeeb90a860096756603a577df1a77
Author: Chris Wilson <[email protected]>
Date: Sat Dec 1 09:40:11 2012 +0000
sna/gen5: Inspired by gen4, reorder the flushing
and the desire to reduce the impact of this w/a.
Reported-by: [email protected]
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=74882
Signed-off-by: Chris Wilson <[email protected]>
in 2.99.911
** Changed in: xserver-xorg-video-intel (Ubuntu)
Status: New => Fix Committed
** Bug watch added: freedesktop.org Bugzilla #74882
https://bugs.freedesktop.org/show_bug.cgi?id=74882
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https://bugs.launchpad.net/bugs/1342675
Title:
Random characters in screen text suddenly disappear
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