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Hardware - [FIXED] AMD APU (Radeon Sumo) KMS - only HDMI output works

mad_fashist - 05.01.2012, 13:37
Post subject: [FIXED] AMD APU (Radeon Sumo) KMS - only HDMI output works
I have AMD APU with Radeon Sumo graphics. System turns off notebook's
monitor while loading, but HDMI works.
I've wrote a detailed letter with logs (in attachments) here:
http://lists.freedesktop.org/archives/dri-devel/2011-December/017788.html
And got an answer that this bug is fixable with a patch from here:
https://bugs.freedesktop.org/show_bug.cgi?id=41569
I also asked if this patch will be in 3.2 kernel and got an answer "yes". Today 3.2 aptosid kernel is released but there's no difference between 3.1 and 3.2 - notebook's monitor still doesn't work.

Any thoughts on this matter?
mad_fashist - 05.01.2012, 14:00
Post subject: RE: AMD APU (Radeon Sumo) KMS - only HDMI output works
I've just tried ubuntu livecd with 3.0 kernel. It works, just while shutting down and showing me a splashscreen it couldn't set normal monitor clock and all the screen was in blinking stripes.
mad_fashist - 19.01.2012, 12:09
Post subject: RE: AMD APU (Radeon Sumo) KMS - only HDMI output works
These patches helped:
http://people.freedesktop.org/~agd5f/dce_fixes/
I took the link to patches from here:
https://bugs.freedesktop.org/show_bug.cgi?id=41569
(comment #13)
I hope that 3.3 kernel will include these patches. But also it would be good to patch aptosid's 3.2 kernel.
mad_fashist - 07.02.2012, 17:35
Post subject: RE: AMD APU (Radeon Sumo) KMS - only HDMI output works
aptosid's 3.2-5 works - seems like patches have arrived into new kernel. I think the topic can be marked as solved now.
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