On Mon, Sep 5, 2016 at 10:25 PM, Jerome Glisse <jglisse@xxxxxxxxxx> wrote:
>> Recently I got myself a new laptop with the following integrated GPU:
>>
>> 00:01.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI]
>> Mullins [Radeon R3 Graphics] (rev 40)
>>
>> I found that hibernation is broken in Linux 4.7+ (it works in Linux 4.6)
>> and bisected it to commit 274ad65c9d02 ("drm/radeon: hard reset r600 and
>> newer GPU when hibernating.").
>>
>> This has already been reported three months ago, but for a much older
>> GPU, see the thread starting at
>> https://lists.freedesktop.org/archives/dri-devel/2016-June/110050.html.
>> The symptoms are exactly the same as described by Boris Petkov in that
>> thread: after "systemctl hibernate" the screen goes blank, but the
>> machine remains powered on and needs to be power-cycled.
>>
>> Any suggestions would be welcome.
>>
>> Cheers,
>> Sven
>
> I guess we can invert the logic and only do it for the GPU for which it fix
> hibernation.
Do you remember which asics this fixed?
Alex
>
> Cheers,
> Jérôme
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