[alsa-devel] Regarding Sound on Acer Aspire 6935G

Karthik Ramgopal applefreakpeeps at gmail.com
Sat May 16 05:51:36 CEST 2009

       Even after enabling DEBUG using --with-debug option with configure
when compiling the alsa-driver snapshot leaves no more error messages in the
dmesg logs. The only message relating to HDA is:

[   41.104817] hda-intel: IRQ timing workaround is activated for card #0.
Suggest a bigger bdl_pos_adj.

I just got the line-out output to work by toggling the surround volume. I
still think it's a mapping problem. The headphone switch is turning the
subwoofer on and off, and the surround volume is controlling the line-out
volume. None of the line-in devices function and all of the amp-ins 0x0b to
0x0f are muted. Cannot find any verb to unmute them. hda-verb with
SET_EAPD_BTLENABLE 2 at 0x15 is still needed at startup to fire up the amps.

Please help.


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