Fedora Users — Re: ac97 sound problems

Peter Skensved wrote:

Simon, What kind of laptop is it ? I had a problem with flaky sound on my Dell 4100 which has an ac97 soundcard. The souncard would work sporadically and often would require a reboot to fix. The fix was to force the clocking in /etc/modules.conf on module installation :

alias sound-slot-0 i810_audio
options i810_audio ftsodell=1 clocking=48000              <---
post-install sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -L >/dev/null 2>&1 || :
pre-remove sound-slot-0 /bin/aumix-minimal -f /etc/.aumixrc -S >/dev/null 2>&1 || :


  I cannot recall where I found the relevant  options  line - probably
by googling through  all the laptop howto pages but it works like a charm.
The comments in the source code may also reveal other `hidden' options .


                                          peter
----

Peter Skensved                          Email : peter@xxxxxxxxxxxxxxxxxx
Dept. of Physics,
Queen's University,
Kingston, Ontario,
Canada

Its a Sharp PC-FS2518 laptop. The sound worked without any interention
with core 1, so I dont know whats changed. This is the output of
/etc/modprobe.conf:

alias snd-card-0 snd-via82xx
install snd-via82xx /sbin/modprobe --ignore-install snd-via82xx &&
/usr/sbin/alsactl restore >dev/null 2>&1 || :
remove snd-via82xx { /usr/sbin/alsactl store >/dev/null 2>&1 || : ; };
/sbin/modprobe -r --ignore-remove snd-via82xx

and output from lspci -v is:

00:11.5 Multimedia audio controller: VIA Technologies Inc.
VT8233/A/8235/8237 AC97 Audio Controller (rev 30)
Subsystem: Sharp corporation: Unknown device 102d
Flags: medium devsel, IRQ11
I/O ports at e000
Capabilities: [c0] Power Management version 2

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