No sound after last kernel update.

[hackob]

El vie, 01-02-2008 a las 18:59 +0100, Stefan Kuhlemann escribió:
> hackob schrieb:
> > Hi,
> >
> > After last kernel update I have no sound in my pc, I have an Intel
> > AC'97. If I do a lspci I can see the sound card, but in gnome desktop
> > Sound Hardware I only have the PCM output and Modem speaker.
> >
> > Any idea?, tks.
> >
> > Hackob.
> >
> >   
> Same problem here.
> 
> After the last kernelupdate - no sound. After some testing i figured 
> out, that this is a permission-problem (with root I had sound).
> 
> chmod 666 /dev/dsp
> and
> chmod 666 /dev/mixer
> 

This didn't solve my problem!

[hackob at simon ~]$ id
uid=500(hackob) gid=500(hackob) grupos=100(users),500(hackob)
[hackob at simon ~]$ ll /dev/mixer /dev/dsp
crw-rw-rw-+ 1 root users 14, 3 feb  1 10:22 /dev/dsp
crw-rw-rw-+ 1 root users 14, 0 feb  1 10:22 /dev/mixer
[hackob at simon ~]$ 


> gives me back the sound when working as normal user.
> 
> Sadly, I have to set those permissions after every reboot.... *grrrr*
> 
> Also:
> chgrp'ing the /dev/dps and /dev/mixer to 'users' (being with my account 
> in the group useres of course) and chmod'ing them to 660 didn't help.....
> 
> So...
> 
> - How could I set /dev/dsp and /dev/mixer to '666-permission' permanent?
> - And is there a possible security-risk in doing so?
> 
> Thanks for any help in advance
> 
> Stefan
> 
>