[ltp] How to turn on DMA on R40, MDK9.1

Tod Harter linux-thinkpad@linux-thinkpad.org
Tue, 25 Nov 2003 08:59:35 -0500

The 'sound' service does indeed load ALSA, configure mixer settings etc. My 
guess is its being started somehow... Its certainly possible to have your 
system configured in such a way that sound starts without 'service sound 
start' ever happening though. Remember, sound is just some drivers being 
loaded, so there are a few ways that can happen.

The general cure for your basic problem is of course to have the apmd turn off 
pcmcia and sound before you suspend to RAM. A lot of hardware seems to 
require that. 

On Monday 24 November 2003 11:09 am, Ivarsson, Torbjorn (T) wrote:
> > -----Original Message-----
> > From: Ivarsson, Torbjorn (T) [mailto:tivarsson@lucent.com]
> > Sent: Saturday, November 22, 2003 1:45 PM
> >
> > > If the newer kernel works, it sounds like DMA for that
> >
> > motherboard is
> >
> > > probably not supported in the old kernel.
> > > You might find that other bugs have been fixed too in Mdk
> > > 9.2. Mandrake
> > > 9.2 ISOs are now available for public download (the isos were
> >
> > Yes, I didn't know they had been available for the public,
> > but I'm downloading them as we speak and will try them out.
> I installed Mandrake 9.2 yesterday. The installation went fine. I still got
> KDE to crash after waking up from suspend (to RAM). The second time I tried
> it I got a Kernel panic.
> I remembered seeing information that PCMCIA and sound may mess up the
> system, so I turned off the 'pcmcia' and 'sound' service. After a reboot
> everything works just fine - no crashes or anything :)
> The sound is still working since ALSA is running. What is the 'sound'
> service used for? Is it for OSS? Is there a comprehensive list somewhere
> that tells me what different Linux services are doing? The help/info in
> Linux is not always clear...
> T.

Tod Harter
Giant Electronic Brain