[pulseaudio-discuss] [PATCH 4/4] alsa-mixer: Add force-hw-volume flag to alsa profile sets

David Henningsson david.henningsson at canonical.com
Sat Apr 9 11:20:40 PDT 2011

On 2011-04-08 17:18, Colin Guthrie wrote:
> 'Twas brillig, and oku at iki.fi at 08/04/11 15:18 did gyre and gimble:
>> From: Jyri Sarha<jyri.sarha at nokia.com>
>> Before this patch, if any of the paths in a path set do not
>> support HW volume then the HW volume is disabled for the whole
>> set. In some cases this is a bit drastic measure. For instance,
>> if all but one of the paths support HW volume and dB there no
>> problem to pretend that we have HW volume for the whole set. The
>> path without any mixers to control will just always return 0 dB
>> and the rest is handled by SW volume. This patch adds a flag to
>> the mapping section of profile set file to enables this behavior.
> David, this sounds similar to your USB Headset issue from a couple days
> ago... or am I just reading too much into the description?

Sort of - it just feels like neither of us has tried to do the right 
thing so far - I added a workaround/quirk for a few devices, and this 
patch adds a setting to turn something on and off.

I'd like it to "just work".

Or put in another way - what's the recommended default setting of this 
new parameter, and why?

// David

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