dv2000t: sound doesn't work after returning from sleep/hibernate

sound works fine under normal circumstances, but quits after coming out of sleep/hibernate. i have to reboot to get things to work. any idea on how to fix this?

on a slightly related topic, the quickplay volume keys work perfectly (including next, previous, play/pause, stop, etc) but not the mute button. the problem is very strange because the sound icon in the taskbar will appear as if the volume is mute, but sound will still come out of the speakers at the same volume than before i pressed the mute button.


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