Bug#720767:

[Felipe Sateler]

Hi Peter,

On Sat, May 10, 2014 at 12:09 AM, Peter Ward <peteraward at gmail.com> wrote:
>
> On 4 May 2014 03:07, Felipe Sateler <fsateler at debian.org> wrote:
>>
>> On Sat, May 3, 2014 at 1:26 AM, Peter Ward <peteraward at gmail.com> wrote:
>> >
>> > On 29 April 2014 13:26, Felipe Sateler <fsateler at debian.org> wrote:
>> >>
>> >> > When running pulseaudio under my normal user (not in system mode),
>> >> > there
>> >> > is an initial crackling / white noise which plays until
>> >> > module-suspend-on-idle kicks in and suspends the device.
>> >>
>> >> Does this problem happen with pulseaudio 5? If so, I'll need the output
>> >> of
>> >>
>> >> pulseaudio -vvvv --log-time
>> >
>> >
>> > Yes, it still happens, and there’s no change in behaviour: by default
>> > there’s several seconds of crackling, with the timeout=0 workaround,
>> > there’s
>> > just a short click.
>> > I’ve attached pulse.log (which doesn’t have timeout=0) and pulse2.log
>> > (which
>> > did).
>>
>> Hmm, nothing on the logs!
>>
>> >
>> >> Also, is the cpu active while the crackling is there? Does the noise
>> >> reappear when the sink is resumed? Does dmesg say anything that might
>> >> be related?
>> >
>> >
>> > Obviously there’s still some startup activity going on, but it’s not
>> > running
>> > at 100% cpu or anything like that.
>> > No, once it’s been suspended, the problem goes away (until next time
>> > pulseaudio is started).
>> > And no, I can’t see anything related in dmesg (or
>> > /var/log/{syslog,kern.log,messages}).
>>
>> OK, what happens if you modify default.pa to add tsched=0 to
>> module-udev-detect?
>
>
> No difference in what I hear, I’ve attached pulse3.log (-vvvv --log-time).

I am not seeing any signs of what may happen. I'm going on a limb
here, but you do not have rtkit installed. Does the problem happen if
you install it?


-- 

Saludos,
Felipe Sateler