[alsa-devel] Auto-muting line-outs?
I'm getting bug reports from downstream about auto-muting not working, and when looking at some of them I find that the reason is that they have a headphone + line-out combination instead of headphone + speaker.
Looking at commits such as 2a2ed0df, this is intentional. I'm not sure what the majority of users want or expect in this case though, of course the users who like it the way it is, aren't raising their voices. :-)
Anyway, for users that really want auto-muting for their line-outs, would a suitable workaround to recommend them, be to tweak user_pin_config, turning the line-out into a speaker-out, or would that have undesirable side effects?
2010/8/3 David Henningsson david.henningsson@canonical.com
I'm getting bug reports from downstream about auto-muting not working, and when looking at some of them I find that the reason is that they have a headphone + line-out combination instead of headphone + speaker.
Looking at commits such as 2a2ed0df, this is intentional. I'm not sure what the majority of users want or expect in this case though, of course the users who like it the way it is, aren't raising their voices. :-)
Anyway, for users that really want auto-muting for their line-outs, would a suitable workaround to recommend them, be to tweak user_pin_config, turning the line-out into a speaker-out, or would that have undesirable side effects?
headphone + speaker usually occur in laptop
headphone + line out occur in desktop
As HDA support multi streaming, the front panel green/pink jacks may be used independent of the audio jacks in rear panels in desktop on some HDA codec
On Tue, Aug 03, 2010 at 09:53:45AM +0200, David Henningsson wrote:
I'm getting bug reports from downstream about auto-muting not working, and when looking at some of them I find that the reason is that they have a headphone + line-out combination instead of headphone + speaker.
Looking at commits such as 2a2ed0df, this is intentional. I'm not sure what the majority of users want or expect in this case though, of course the users who like it the way it is, aren't raising their voices. :-)
I'd certainly expect line outputs to stay live regardless of headphone state - there's just too much diversity in what they could be connected to to allow that sort of automated handling in kernel.
2010/8/3 Mark Brown broonie@opensource.wolfsonmicro.com
On Tue, Aug 03, 2010 at 09:53:45AM +0200, David Henningsson wrote:
I'm getting bug reports from downstream about auto-muting not working, and when looking at some of them I find that the reason is that they have a headphone + line-out combination instead of headphone + speaker.
Looking at commits such as 2a2ed0df, this is intentional. I'm not sure what the majority of users want or expect in this case though, of course the users who like it the way it is, aren't raising their voices. :-)
I'd certainly expect line outputs to stay live regardless of headphone state - there's just too much diversity in what they could be connected to to allow that sort of automated handling in kernel.
Some of the case not handled by the driver are those laptops which equipped with 4.1 or 5.1 internal speakers and they need auto mute more that one pair of speakers
participants (3)
-
David Henningsson -
Mark Brown -
Raymond Yau