https://bugzilla.novell.com/show_bug.cgi?id=727348 https://bugzilla.novell.com/show_bug.cgi?id=727348#c6 Takashi Iwai <tiwai@suse.com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEEDINFO |NEW InfoProvider|tiwai@suse.com | --- Comment #6 from Takashi Iwai <tiwai@suse.com> 2011-10-31 14:50:52 UTC --- (In reply to comment #5)
(In reply to comment #4)
OK, so it's a bug in kmix. Reassigned to KDE guys.
Wait, see below ...
alsamixer shows only one channel unless -c0 option or such is given. It's because the pulse plugin is enabled as default. With -c0 (equivalent with -Dhw:0) option, you can access the hardware layer more directly.
When using "alsamixer -c0" it is possible to mute the sound in a way that I can not get it back working as well. The only way to make it work is to exit and either: - call "alsamixer" (without parameter) and unmute the only master channel OR - call "alsamixer -c0" again - but now it shows different settings than before I left it.
Example: 1. music playing 2. call "alsamixer -c0" 3. mute master channel 4. unmute master channel Result: - NO channel is shown as muted in alsamixer now - BUT music is still muted
Solution: 5. exit alsamixer 6. call "alsamixer -c0" again Now alsamixer shows that all channels are muted. 7. unmute all channels Result: - No channel is shown as muted in alsamixer finally - music is playing again
So there seems to be a problem in alsa as well, I think.
No, it's no problem of the driver side. The mute status indicates only the status of the master mute. And it's individual from the individual channels. Imagine you muted only the front line and unmute the surround line. Should it be muted, or unmuted? In the driver side, it doesn't matter. It's just a matter of what to take as the main indicator. It's actually a problem of the combination between PA and kmix. PA mutes all related channels to be consistent about the mute behavior. Also, it unmutes all changes as well when unmuted. So, when you mute the master, then re-login, you'll notice that all related channels are muted as well. Now, when you try to unmute via kmix, it handles only the master for mute/unmute behavior by some reason. This is the reason you got no outputs. -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.