[pulseaudio-discuss] [PATCH] suspend-on-idle: Allow disabling suspending for specific devices

[David Henningsson]

On 08/30/2013 09:28 AM, Tanu Kaskinen wrote:
> On Fri, 2013-08-30 at 08:16 +0200, David Henningsson wrote:
>> On 08/29/2013 04:36 PM, Tanu Kaskinen wrote:
>>> Sometimes it would be nice to disable module-suspend-on-idle for
>>> specific devices. For me the use case is to keep a HDMI sink running
>>> all the time to avoid loss of audio when starting to play a stream to
>>> the device (the HDMI receiver eats a bit from the beginning of the
>>> stream when the device is opened). This is arguably a hacky solution
>>> to the problem, but on the other hand, I think it's very sensible to
>>> interpret negative timeout in the module-suspend-on-idle.timeout
>>> property as disabling the suspending altogher. This is also how the
>>> exit-idle-time configuration option behaves (negative value disables
>>> automatic exiting).
>>
>> Didn't Arun have another solution for a similar problem? Like a sink
>> ALWAYS_RUNNING flag or something.
> 
> Yes, he did. That patch was not merged, and I don't know if Arun plans
> to still work on it.
> 
> Regardless of Arun's solution, I think it makes sense to support
> negative value for the module-suspend-on-idle.timeout property to be
> consistent with other timeout parameters.
> 

Hmm, it looks like there already is a module-suspend-on-idle.timeout
property and you're just improving its functionality. Then I would
typically prefer this over a new sink flag.

Even better if the module-suspend-on-idle.timeout was documented though...

Arun, would this solve your problem as well? Would it be possible for
the two of you to synchronise your efforts?


-- 
David Henningsson, Canonical Ltd.
https://launchpad.net/~diwic