[kubuntu] sound is not working again...

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http://ubuntuforums.org – I've had a similar porblem with 10.04 which i could solve by using newer ALSA (an upgrade to 10.10 made it almost perfect). the sound never worked in HD mode but since i use analog stereo anyway that was ifne enough. when 12.04 came out i tested live everyhting worked so a fresh install was made. sound worked very well except when computer went to hibernation. so i turned of hibernaiton. sound worked well until... kernel -26 and now again in -27. i do not know what went wrong or how. i tried to load kernel generic -26 and sound now works there. after upgrading to -27 it doen't work again. th (Hardware)