i use LinuxMint Katya with gnome desktop. Since a few days the playback of files with 5.1 Sound ( video and audio files ) doesn't work properly. Sounds from the centre speaker are too loud in relation to the other speakers. Adjustments in the control centre don't make a change. I think it's maybe a problem with the settings in my home folder, though i can't remember that i've changed something.
This problem appears with all Programs i use ( VLC / Xine / mplayer ).
With Windows XP the sound card works fine, so i don't think that it is a hardware problem.
Best regards and hoping for an answer
I deleted ( after a backup ) the folders .mplayer, .pulse and .xine from my home folder. After restarting, the sound works fine again
If i have the time, i will check which file exactly caused the failure.