From mboxrd@z Thu Jan 1 00:00:00 1970
From: bugzilla-daemon@bugzilla.kernel.org
Subject: [Bug 16389] New PM-Code produces white screen on laptop display on
startup on an radeon x700
Date: Thu, 15 Jul 2010 05:04:30 GMT
Message-ID: <201007150504.o6F54U8x024820@demeter.kernel.org>
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https://bugzilla.kernel.org/show_bug.cgi?id=16389
--- Comment #2 from Jan Kreuzer 2010-07-15 05:04:26 ---
Currently on airlieds drm-radeon-testing, but the same happens with mainline. I
did an bisect run before, i will attach the log. However just reverting the
commit didnt help, so i dont think the log is right.
I also think that new pm-code is not to blame, i guess that activativing the
old code on boot time with the dynpm option led to an longer initializing time
of the chipset. I am not an programmer, but looked at the code of r420.c, the
old code kicked in after the initialize of the clocks, maybe more time is
needed there ? But maybe i am wrong, i added about 50 printks after
radeon_get_clock_info(rdev->ddev); sometimes it works no, sometimes not.
I had the issue since the beginning of radeon-kms, it started working after i
used the dynpm option at boot time, never without.
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