Symptoms: -music sounds strange -playing front-left (gnome) is also heard on the right headphone speaker and the other way around Reproduction (speakers are connected, also the headphone): 1. plug out headphones, the sound should be hearable from the speakers 2. listen to music some time 3. plug in headphones Now this problem appears sometimes (with the headphone, the speakers still operate fine). The problem can't be solved by restarting pulseaudio. The weirdest thing is that the problem disappears after a while. Sorry that I don't have more information. I hope you can reproduce the problem. my conclusion: It seems as if the left and the right channel are mixed to a distorted mono sound. But this seems only to happen in headphones. Most probably it is a fault in the headphone detection (the headphone itself is new and works fine) or a hardware problem (broken driver?) Technical data: pulseaudio: git, build date: 22.9.2012 distro: archlinux mainboard: GA-MA785GT-UD3H Related bugs (seems so): https://bugs.freedesktop.org/show_bug.cgi?id=53206
I think I found a fix.After using the command the sound gets normal (tests needed to be sure; it could be a coincindence): pulseaudio --cleanup-shm
test failed. Again there is the problem with the channel map and using the command didn't help. Additional information: What I used: pulseaudio git commit f0432ce6aedca5956f6086824120bb03559e6534 on archlinux Ah another strange thing: the normal speakers work flawless, just the headphones have this problem. Also the jack detection doesn't work anymore
/usr/share/sounds/alsa/Front_Left.wav is a mono wav file, this is normal if you are not using speaker test which specifically output this signal to left channel of a stereo device, other alsa application playing mono file are playing to both left and right channel
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