Bug 47606

Summary: Random chance of HDMI audio to be working upon startup
Product: DRI Reporter: Lucas <lvella>
Component: DRM/RadeonAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: x86-64 (AMD64)   
OS: All   
i915 platform: i915 features:

Description Lucas 2012-03-20 12:08:28 UTC
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.
Comment 1 Michel Dänzer 2012-03-21 03:08:21 UTC
Please attach dmesg output.

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