[alsa-devel] HDMI Repoll after pm?

[Takashi Iwai]

On Thu, 10 Dec 2015 10:47:59 +0100,
David Henningsson wrote:
> 
> Hi Takashi,
> 
> A recent change in sound.git seems to have introduced some repoll after 
> pm. Is this an intentional change? I don't think it's wrong per se (it 
> stops after 6 repolls), but it breaks my hda-emu tester when "list" does 
> not return the expected input.

Hm, there is no such an intended change.

> To reproduce, try running:
> 
> ./hda-emu 
> codecs/canonical/92hd91bxx-dell-inspiron-5423-ccert-201208-11456 -i 1
>  > pm
> .... lots of data ....
> ** TEST_PM DONE **
> HDMI status: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=0
> JACK report HDMI/DP, status 0
>  > list
> 1: HDMI/DP Jack:0 (1)
> 2: IEC958 Playback Con Mask:0 (1)
> 3: IEC958 Playback Pro Mask:0 (1)
> 4: IEC958 Playback Default:0 (1)
> 5: IEC958 Playback Switch:0 (1)
> 6: ELD:0 (1)
> 7: Playback Channel Map:0 (1)
> HDMI status: Codec=3 Pin=5 Presence_Detect=0 ELD_Valid=0
> JACK report HDMI/DP, status 0
>  >
> 
> ...notice how the last two lines are somewhat unexpected output for a 
> "list" command, but I can make my tool more robust in case you confirm 
> this is an expected change.

When the list may trigger some runtime PM, the jack status report
itself should have been present at resume in earlier version, too.
Do you see the repoll there?


Takashi