Re: [2.6.9-rc2] ALSA nm256 driver causes system lockup

[Takashi Iwai]

At Tue, 28 Sep 2004 14:47:17 +0200,
Jan De Luyck wrote:
> 
> Hello list,
> 
> I'm trying to configure a laptop (Dell Latitude CXs) with 2.6.9-rc2. All runs 
> well, except the ALSA nm256 driver for the Neomagic Audio chip. Loading this 
> driver results in an immediate and complete system lockup....
> 
> I've tried appending "vaio_hack=1" on the kernel command line, but that didn't 
> really do anything.
> 
> ALSA is compiled as modules.
> 
> Any pointers?

Try to load snd-nm256 driver before X.  The chip uses the video RAM
for the sound buffer.  It seems that X clears all video RAM that
confuses the sound driver.  I.e. if you already started X, there is no
way back :)


Takashi
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