Karmic: occasional no sound at boot up

[Mark Fraser]

On Thursday 18 Mar 2010 10:19:55 Mark Fraser wrote:
> On Tuesday 16 Mar 2010 20:09:59 Mark Greenwood wrote:
> > On Saturday 13 Mar 2010 18:20:34 Mark Fraser wrote:
> > > On Saturday 13 Mar 2010 17:28:08 Mark Greenwood wrote:
> > > > On Saturday 13 Mar 2010 17:11:41 Mark Greenwood wrote:
> > > > > On Friday 26 Feb 2010 23:26:18 lanzen wrote:
> > > > > > On Wednesday 24 February 2010 19:49:34 Jonas Norlander wrote:
> > > > > > > On 23 February 2010 17:03, Mark Fraser
> > > > > > > <ubuntu at mfraz.orangehome.co.uk>
> > > > > >
> > > > > > wrote:
> > > > > > > > Occasionally when I turn my computer on, I will get a pop up
> > > > > > > > appearthere saying that it couldn't find any sound drivers.
> > > > > > > > Shutting down and then rebooting gets the sound back, but it
> > > > > > > > is getting annoying!
> > > > > > >
> > > > > > > I used to have this problem to. The cause was that some package
> > > > > > > had a wrong dependency and pulled in pulsaudio, purging
> > > > > > > pulsaudio and some other packages solved it. This was on
> > > > > > > Jaunty, in Karmic I haven't had this problem.
> > > > > >
> > > > > > Karmic here and I see this happening from time to time on both my
> > > > > > eeepc and the desktop PC. I did all I knew I could to get rid of
> > > > > > pulsaudio that still shows up in the audio setting window. I
> > > > > > cannot remove it. It doesn't show as default and I don't know
> > > > > > what it does there. libpulse0 is in and, as Mark said, it looks
> > > > > > like it doesn't like being touched. Startup sound plays.
> > > > > >
> > > > > > On reboot I always get the audio back.
> > > > >
> > > > > I'll add a 'me too' to this one. However for me even a reboot has
> > > > > stopped curing it. I now have no sound in KDE, but skype and
> > > > > mplayer etc all still work.
> > > > >
> > > > > I also have a USB sound card. If that is connected to the computer
> > > > > on boot up, KDE doesn't find it. If I connect it after booting up,
> > > > > KDE finds it and I can use it. So I suspect this problem is some
> > > > > kind of initialisation thing where KDE is searching for the sound
> > > > > card before it is 'ready'.
> > > > >
> > > > > Mark
> > > >
> > > > Hmm, just out of interest, the people having this issue haven't
> > > > recently installed anything from the nVIDIA VDPAU PPA have they? I
> > > > notice that includes a load of xine packages, and I started having
> > > > these problems around the time I upgraded from that PPA.
> > >
> > > No, I haven't added the nVidia PPA repository, but I did have the
> > > Kubuntu backports PPA enabled for a while until they put KDE4.4 in
> > > there.
> >
> > You might be interested to try this, it *seems* to have worked for me (so
> >  far, I'm not counting my chickens yet though).
> >
> > This only applies if you have Intel HD audio or compatible, but:
> >
> > in /etc/modprobe.d/alsa-base.conf
> > find
> > options snd-hda-intel power_save=10 power_save_controller=N
> > and change it to
> > options snd-hda-intel power_save=10
> 
> Will try that, but I have reported a bug on Launchpad
> https://bugs.launchpad.net/bugs/540796
> 
> Looking at the differences between the two runs of alsa-info, I see that
>  with no sound under the section APLAY both analogue and digital outputs
>  are under Subdevices: 1/1. With it working analogue is 0/1 and digital is
>  1/1.

That hasn't helped, I still get no sound.
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