[alsa-devel] Can't detect "XRUNs"

[Takashi Iwai]

On Wed, 04 Jul 2018 17:49:34 +0200,
Raphaël Dingé wrote:
> 
> >> You applied my patch, right?  Otherwise the xrun injection won't
> >> trigger the xrun tracing event by itself, just calling
> >> snd_pcm_stop().
> 
> So with your patch, echo 1 > xrun_injection will output one xrun event
> in /sys/kernel/debug/tracing/trace
> So at least this is working!
> 
> But no other events are generated.

It means that it's no system-wide XRUN handling.

Which hardware?  If it's Intel LPE HDMI thing, -EPIPE report doesn't
mean always an XRUN, but may imply just an unconnected device.


Takashi