[Bug 26214] New: HDMI Audio with r600 KMS doesn't survive suspend to ram

[Bug 26214] New: HDMI Audio with r600 KMS doesn't survive suspend to ram

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26214

           Summary: HDMI Audio with r600 KMS doesn't survive suspend to ram
           Product: DRI
           Version: DRI CVS
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.sourceforge.net
        ReportedBy: marius.groeger@web.de


With 2.6.33rc4, 2.6.33rc5 and drm-radeon-testing as of 24-jan-2010, HDMI audio
does no longer work when the machine has resumed after suspend-to-ram.


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[Bug 26214] HDMI Audio with r600 KMS doesn't survive suspend to ram

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26214





--- Comment #1 from Rafał Miłecki <zajec5@gmail.com>  2010-01-28 09:03:40 PST ---
To solve this problem it would be enough to just re-enable audio engine after
resume (as GPU state is reseted).

However this way we keep r600_audio_update_hdmi timer looping all the time,
even before we manage to re-enable audio engine. This leads to following
situation:

[  173.838067] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  173.938064] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.038012] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.138013] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.238011] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.338024] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.438024] [drm:r600_audio_bits_per_sample] *ERROR* Unknown bits per sample
0xf using 16 instead.
[  174.533109] [drm] Clocks initialized !
[  174.570184] [drm] ring test succeeded in 1 usecs
[  174.570199] [drm] ib test succeeded in 0 usecs
[  174.570202] [drm] Enabling audio support


So I believe we should completely stop our audio stuff for suspend and restart
it on resume.


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[Bug 26214] HDMI Audio with r600 KMS doesn't survive suspend to ram

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26214





--- Comment #2 from Marius Groeger <marius.groeger@web.de>  2010-01-28 12:16:56 PST ---
The fix posted here seems to fix the issue:

http://www.mail-archive.com/dri-devel@lists.sourceforge.net/msg46762.html


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[Bug 26214] HDMI Audio with r600 KMS doesn't survive suspend to ram

[bugzilla-daemon]

http://bugs.freedesktop.org/show_bug.cgi?id=26214


Fabio Pedretti <fabio.ped@libero.it> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |fabio.ped@libero.it
             Status|NEW                         |RESOLVED
         Resolution|                            |FIXED




--- Comment #3 from Fabio Pedretti <fabio.ped@libero.it>  2010-02-18 00:53:46 PST ---
Patch applied in 2.6.33-rc8.


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