[Bug 100759] [r600] System freeze on resume from sleep on battery with DPM enabled and linux 4.10

bugzilla-daemon at freedesktop.org bugzilla-daemon at freedesktop.org
Sat Dec 30 18:35:40 UTC 2017


--- Comment #1 from Nicola Mori <nicolamori at aol.com> ---
I found the time to bisect and found that the culprit is:

commit 1c331f75aa6ccbf64ebcc5a019183e617c9d818a
Author: Lucas Stach <dev at lynxeye.de>
Date:   Sun Oct 23 01:05:33 2016 +0200

    drm/radeon/pm: autoswitch power state when in balanced mode

    The current default of always using the performance power state leads
    to increased power consumption of mobile devices, which have a dedicated
    battery power state. Switch between the performance and battery power
    state automatically, dpending on the current AC power status, when the
    user asked for the balanced power state.

    The user can still override this logic by asking for the performance
    or battery power state explicitly.

    Tested-by: Michel Dänzer <michel.daenzer at amd.com>
    Acked-by: Christian König <christian.koenig at amd.com>
    Signed-off-by: Lucas Stach <dev at lynxeye.de>
    Signed-off-by: Alex Deucher <alexander.deucher at amd.com>

I don't have the skills to understand what's broken, but I can test an eventual
patch if someone provides it. Thanks.

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