https://bugs.freedesktop.org/show_bug.cgi?id=34618
--- Comment #24 from peterle@hottemptation.org 2011-03-31 09:25:29 PDT --- (In reply to comment #10)
I'm guessing this is an issue with pat or mtrrs on the fb mapping after resume.
(In reply to comment #23)
Could it be messed up MTRRs? Just an idea...
The bug is caused by PAT and not MTRR!
I decided switching off MTRR was a try worth. The terminal scrolls without MTRR as slow as after a suspend-cycle, so I played around with the options: And finally switch on MTRR but PAT off!
1. General Setup [*]Configure standard kernel features (expert...) 2. Processor type and features [*]MTRR support [*]MTRR cleanup [ ]x86 PAT support
I'am so glad to know what causes this problem.
PS: I think my average fps in ioquake3 increased about 5% without x86 PAT.