On 05/03/2017 06:51 PM, Tanu Kaskinen wrote:
On Wed, 2017-05-03 at 11:23 +0800, Hui Wang wrote:
Today I tested the latest master branch (already including your two
patches), seems it did not fix the problem. Below is my testing detail:
Install ubuntu 16.04 on my laptop.
clone the latest pulseaudio source code, checkout master branch
build the source code: ./autogen.sh;make
kill the existing pulseaudio and run the latest pulseaudio: pulseaudio
--kill && ./src/pulseaudio -vvvnF ./src/default.pa -p $(pwd)/src
On this machine, we have sound cards, sinks and ports like below:
Card#0(HDA INTEL HDMI)-> Sink#0(hdmi-stereo)->hdmi-output(priority: 5900)
Card#1(HDA INTEL PCH)->Sink#1(analog-stereo)->headphones(priority: 9000)
No speaker port at all on the PCH card?
Sorry for late response, just came back from a vacation.
I removed the speaker from the kernel driver intentionally for debugging
another audio bug.
But it does not matter, if I don't remove the speaker, the Sink#1 has
the speaker on it, and the default sink is Sink#1, after plugging the
HDMI cable, the default sink is still Sink#1, it is expected since
Sink#1 has an available port which has higher priority than HDMI port,
then I select the HDMI to be the default sink manually, now the default
sink is Sink#0. After that I unplug the HDMI cable, the Sink#1 is
expected to be the default sink since the Sink#0 has no available ports
on it, but the default sink doesn't switch back to Sink#1.
with the new pulseaudio, I can only see one sink (analog-stereo)
through pactl list sinks at the beginning.
After I plug the HDMI cable (headphone is not plugged), I can see two
sinks via pactl list sinks, but the default sink is still the analog-
stereo, here I expect the default sink is hdmi-stereo since the
headphone is not plugged yet.
That's what I'd expect too. Is the headphone port marked as unavailable
as it should?
Yes, it is marked "not available".
Then I plug the headphone, and I select the hdmi (hdmi is also
plugged in) as the default sink, after a while I unplug the hdmi
cable, here I expect the default sink is back to analog-stereo since
headphone is still plugged, but the default sink did not switch to
analog-stereo. BTW after I unplug the hdmi cable, I can still see two
sinks.
The default sink is set in pa_core_update_default_sink() in
src/pulsecore/core.c. That function uses the compare_sinks() function,
and the first thing compare_sinks() does is to check if one of the
compared sinks has an unavailable port active. Can you figure out what
goes wrong? Is pa_core_update_default_sink() not called when you plug
in or unplug things, or does pa_core_update_default_sink() really
choose a sink whose active port is unavailable?
Through debugging, I found the function pa_core_update_default_sink() is
not called when unplug the HDMI cable in the situation above.
The good news is after applying your new patch "[PATCH] sink, source:
update the default sink/source on port switches", the issue is fixed.
The function pa_core_update_default_sink() is called when
plugging/unplugging some audio output devices, and the default_sink is
changed as expected.
Thank you for your patches. :-)
Thanks,
Hui.
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