[Bug 89327] Loss of HDMI audio on auto screen off (energy saving)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=89327

--- Comment #14 from John <john.ettedgui at gmail.com> ---
(In reply to Dieter Nützel from comment #12)
> Bisected
> 
> 6f945693be7eea24b1a8e5ce252a96df98d55a5c is the first bad commit
> commit 6f945693be7eea24b1a8e5ce252a96df98d55a5c
> Author: Slava Grigorev <slava.grigorev at amd.com>
> Date:   Wed Dec 10 14:52:43 2014 -0500
> 
>     radeon/audio: applied audio_dpms() and audio_mode_set() calls
>     
>     Reviewed-by: Christian König <christian.koenig at amd.com>
>     Signed-off-by: Slava Grigorev <slava.grigorev at amd.com>
>     Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
> 
> :040000 040000 33622643fd03f2afac723aa1356fe9c638a8fb3c
> fac1a0f988f61f513a75af0b0e55cccc4246d500 M drivers
> 
> git bisect start
> # bad: [308de41ba3bde80d50833718a2e37e49be868f5a] drm/radeon: use NULL
> rather then 0 in audio detect
> git bisect bad 308de41ba3bde80d50833718a2e37e49be868f5a
> # good: [49ead33b9f0e0ba0b528951a05986486196848ef] drm/radeon: comment out
> some currently unused 7xx dpm code
> git bisect good 49ead33b9f0e0ba0b528951a05986486196848ef
> # good: [64424d6e45aeee311a4231def7e125bcc2de0855] radeon/audio: consolidate
> update_acr() functions (v2)
> git bisect good 64424d6e45aeee311a4231def7e125bcc2de0855
> # good: [3be2e7d0e705621c1bb41eeabb63b122d50ecff3] radeon/audio: moved mute
> programming to a separate function
> git bisect good 3be2e7d0e705621c1bb41eeabb63b122d50ecff3
> # bad: [6f945693be7eea24b1a8e5ce252a96df98d55a5c] radeon/audio: applied
> audio_dpms() and audio_mode_set() calls
> git bisect bad 6f945693be7eea24b1a8e5ce252a96df98d55a5c
> # good: [6e72376dcc663e4b8a00cdd08f61a8623f572ef1] radeon/audio: consolidate
> audio_mode_set() functions
> git bisect good 6e72376dcc663e4b8a00cdd08f61a8623f572ef1
> # first bad commit: [6f945693be7eea24b1a8e5ce252a96df98d55a5c] radeon/audio:
> applied audio_dpms() and audio_mode_set() calls

Based on the commit's name I'd say it looks like a good match.
Thank you for doing the bisecting instead of me :)

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