[alsa-devel] My PC has 6GB memory but the limitation of the alsa-driver is 4GB.

Takashi Iwai tiwai at suse.de
Mon Mar 16 21:30:04 CET 2009


At Tue, 17 Mar 2009 03:02:58 +0900,
Emmanuel Chanel wrote:
> 
> Your revice on the mail below didn't work. I cannot listen the sound.

Hm, did you really test the latest patch (the third version)?
It actually does set only 32bit DMA as Daniel's change, but just after
checking the controller model.

If it doesn't work, I suspect something wrong in your test or patching.


Takashi

> 2009-03-16 (Mon) 18:37 +0100 Takashi Iwai wrote:
> > At Tue, 17 Mar 2009 02:29:36 +0900,
> > Emmanuel Chanel wrote:
> > > 
> > > My result of "your original change"
> > > Attached file: alsa-info-090317-Daniel is the result of alsa-info.sh
> > > And alsa-driver-090317-Daniel-info.txt is script output.
> > > I could listen sounds with that modification.
> > 
> > OK, then apparently the DMA buffers have to be in 32bit, too.
> > 
> > There might be a missing register to set 64bit DMA for ATI chipset,
> > but right now it's safe to set 32bit DMA for them...
> > 
> > The below is the revised patch.  Could you check whether it works?
> > 
> > 
> > thanks,
> > 
> > Takashi
> -- 
> Emmanuel Chanel <emmanuelchanel at gmail.com>


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