[kubuntu] Sounds from video stops working

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http://ubuntuforums.org – My problem seems to be related to Pulseaudio. I had the same symptoms with Linux Mint 12. Generally the first video I play works fine. Then after a time if I a) resume from pause, or b) close the video player and open a new video file Then it plays with no sound. The problem is intermittend. Sometimes I can watch 4 of 5 videos in a day with no problems. Sometimes (99% of the time) a reboot wil fix it. Sometimes fiddeling with VLC audio settings, pavucontrol, alsamixer, etc will cause the audio to come back suddenly. I don't yet have a magical workaround/solution. With Mint (Hardware)