Hi,
For about a year I got a following problem.
After s2ram cycle I got only sound from internal speaker, even if the headphones are plugged in.
s2disk (hibernate) restores the functionality.
Sometimes (rare!) I got the functionality after s2ram. If I repeat s2ram, it stops working again.
I compared ALSA registers before and after: they are all the same.
It was Ok when I got Fedora7 with kernel 2.6.18 installed. But even if I restore 2.6.18 now, things don't go right.
Before the Switch from 'another proprietary OS' it was also Ok.
With Fedora9 I got a famous 'alsasound' service. It's restart doesn't help. Reloading modules doesn't help. Unload prior to s2ram and load after it doesn't help. Rolling ALSA back doesn't seem to help but I could do it wrong way. Tested kernels: 2.6.18.something, 2.6.19, 2.6.20, 2.6.20.4, 2.6.22, 2.6.22.something, 2.6.23, 2.6.23.6, 2.6.23.12, 2.6.23.12, 2.6.25, 2.6.25.3, 2.6.25.14 (current).
Or it's a hardware failure? As a last resort I'll reinstall //$ //in to check.
Best regards, Dmitry Mikhailov