[ubuntu] No sound on laptop in ubuntu 9.04

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http://ubuntuforums.org – Heya, I'm having no sound at all on my laptop ( a medion akoya ). I've tried many different tutorials/possible solutions, none worked.. Some more information: command aplay -l gives: aplay -l aplay: device_list:217: no soundcards found... so that seems bad, but lspci lists a soundcard, this one: 00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller Another thing, the GNOME ALSA Mixer screen is totally empty, really like this: http://img203.imageshack.us/img203/6...mealsamixe.png and when i try to click 'Edit -> soundcard propreties' even this empty screen disapears. Already tried reinstalling it, no help. Any chance to fix the sound? Grtz (Hardware)