I had a new pair of headphones in the post today, and they work fine on slackware without any fiddling.

However, i have to right click KMix and select the master channel as the USB device. I am wondering, is it possible to create a set up where the sound changes from speakers to headphones dynamically, as they are plugged in? I don't know the slightest thing about pulseaudio, other than it just seems to work with slackware-current since it's addition to the packages.

Example:
1. Playing music out of the speakers as normally.
2. Plug USB headphones in
3. Speakers become silent, and sound comes out of headphones.

At the moment, i have to manually switch the master channel using KMix. Is it possible to get this working??

PS; my speakers are using the standard audio output (they are not USB).

Also i have another problem, where i can't seem to get any sound from firefox (sites like soundcloud or youtube) when setting the master channel to the USB headphones. I do get music playback from DeadBeef media player though.

Any ideas?

Headphones: https://www.amazon.co.uk/gp/product/...?ie=UTF8&psc=1

Device information if useful:
Edit: The only workaround i've had for this is running pavucontrol and clicking the green button to set the USB headphones as fallback. But it feels awkward as when i unplug the headphones i have to do both of these things to get speaker playback again:

1. Open pavucontrol and set speakers as fallback output device
2. Right click KMix and set speakers as master channel

I have also tried adding
to /etc/pulse/default.pa

which after searching online, apparently should enable headphone/speaker toggling, although it has no effect here.

You can try to set a udev rule, then point it to a script. Below are two links that may get you closer to your goal. It looks as though you might have to restart pulseaudio, since apparently applications already playing sound will not switch to new output. Possibly get the script to restart pulseaudio?

https://bbs.archlinux.org/viewtopic.php?id=137146
https://gist.github.com/dustywilson/8267078

Is rc.pulseaudio executable or not?
If it's executable it won't work since pulseaudio is then started with --disallow-module-loading

Not currently, but i'll try that now and reboot and see if it works.

Edit; just tried this, but the headphones don't appear (both speaker and microphone) as neither input or output devices with pavucontrol. The moment i ran /etc/rc.d/rc.pulseaudio stop the USB devices appeared and worked again when manually switching the master channel with KMix.

Every time I switch from speakers to headphones, I have to start pavucontrol to change configuration settings for built-in audio just to get sound back. That's pulseaudio, it makes more problems than it solves.

1 members found this post helpful.

The thing is that /etc/rc.d/rc.pulseaudio shouldn't be executable (unless one really needs it which is very rare).
"chmod -x /etc/rc.d/rc.pulseaudio" and reboot is the best since stopping the script may not be enough.
If it's executable then it behaves as you described since i doesn't load any modules.
But i will agree to that "it makes more problems than it solves."

1 members found this post helpful.

I create a sound.rc file in home directory then usually it take leaving x11/logging off and back on to get that to switch from hdmi to headphones.

THere's probably certainly a better way but thinking it would be based this way..

I tried with chmod -x /etc/rc.d/rc.pulseaudio, but there was no change. Anyway, thanks for a suggestion.

I think I'm going to completely remove that piece of crap from my system.

I think this person provides a very good walk-through on how to set it up.

2 members found this post helpful.

Could it possibly be a usb related problem rather than pulse audio? My phones use a plug and jack and work flawlessly. Haven't got a usb set to try

Well, I don't have usb headphones, but I do have the problem.