[Bug 47606] New: Random chance of HDMI audio to be working upon startup

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=47606

             Bug #: 47606
           Summary: Random chance of HDMI audio to be working upon startup
    Classification: Unclassified
           Product: xorg
           Version: git
          Platform: x86-64 (AMD64)
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/Radeon
        AssignedTo: xorg-driver-ati at lists.x.org
        ReportedBy: lvella at gmail.com
         QAContact: xorg-team at lists.x.org


I am using Radeon HD 4870 connected via DVI to the monitor and via HDMI to the
a TV.

When I want to watch a movie, I use the HDMI audio device to send the audio to
the TV. The device is always properly displayed by 'asound -l':


card 2: HDMI [HDA ATI HDMI], device 3: HDMI 0 [HDMI 0]
  Subdevices: 1/1
  Subdevice #0: subdevice #0


The problem is that there is random chance that the audio device will work or
not, that is probably defined upon system start-up or at first usage. If it
worked once since last boot, it will work until system shutdown. If not, it
will not work until I reboot the machine. Actually it seems that is necessary a
full power down for it to have chance of working on the next boot-up (maybe
some uncleaned volatile memory?).

The other audio devices are unaffected.

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