[alsa-devel] IBM X41 laptop, no headphone detection after s2ram cycle
Dmitry E. Mikhailov
sexandvodka at gmail.com
Wed Jun 25 18:06:13 CEST 2008
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, 188.8.131.52,
2.6.22, 2.6.22.something, 2.6.23, 184.108.40.206, 220.127.116.11, 18.104.22.168, 2.6.25,
22.214.171.124, 126.96.36.199 (current).
Or it's a hardware failure? As a last resort I'll reinstall /\/\$ \/\/in to
Best regards, Dmitry Mikhailov
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