Greetings. I've got an issue with sound on my t510. It started in the late 3.4.x kernels. Sound works on boot and for 5-10min after, then the speakers stop working at all.
I posted a while back on the alsa-users list, and someone else had the same issue: http://www.mail-archive.com/[email protected]/msg28769.html It seems that the speakers(?) are getting moved to state D3 and turning off. You can manually get it to come back for a few minutes by using hda-verb to move it back to D0: hda-verb /dev/snd/hwC0D0 0x1f SET_POWER_STATE 0 http://www.alsa-project.org/db/?f=fd5ca157b2e76942df5ce2f0ae1a2817f3f08afd is my alsa-info. I'd file a bug on the alsa bug tracker, but it still seems to be down (for many months now?). No response on alsa-users, so now that I have a bit of time, I am posting here in hopes someone can look. ;) Happy to provide more info or try things. kevin
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