[Bug 38488] AMD Radeon HD 6950 (Cayman): Power profile has no effect after resume from hibernation

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=38488

Harald Judt <h.judt at gmx.at> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|AMD Radeon HD 6950          |AMD Radeon HD 6950
                   |(Cayman): Clocks not        |(Cayman): Power profile has
                   |restored after resume from  |no effect after resume from
                   |hibernation                 |hibernation

--- Comment #11 from Harald Judt <h.judt at gmx.at> 2011-07-30 04:27:57 PDT ---
Ok, another update, including some positive results:

Compiled updated kernel based on 3.0 final:
http://git.kernel.org/?p=linux/kernel/git/nigelc/tuxonice-head.git;a=summary
merged branch git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6.git
drm-core-next @5a96a899bbdee86024ab9ea6d02b9e242faacbed

* Hibernation & resume still does not work correctly, leaving the power
profiles unfunctional

* Suspend & resume now works reliably and can be performed successfully
multiple times after hibernation & resume, fixing the power profile issue
caused by resume from hibernation

> Strange.  The driver doesn't differentiate between the two.

Do you think it's a bug in the general hibernation / resume code, meaning I
should ask somewhere else? What speaks against this is that the same config
works on a laptop (ATI Mobility Radeon HD 3400) where there are no such issues,
hence I concluded that this *might* be specific to HD6950/Cayman.

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