[Nouveau] [PATCH] drm/nouveau/kms: Implement KDB debug hooks for nouveau KMS.

[Maxim Levitsky]

On Wed, 2010-09-01 at 06:35 -0500, Jason Wessel wrote: 
> On 09/01/2010 04:56 AM, Maxim Levitsky wrote:
> > On Thu, 2010-08-19 at 13:55 -0400, Chris Ball wrote: 
> >   
> >> Hi,
> >>
> >> Here's a patch to add support for KMS debugging to Nouveau, along the
> >> style of the previous patches for Intel¹ and Radeon².  I'm only able
> >> to test on nv50 here, so a test on nv04 would be much appreciated,
> >> and I've published instructions on how to test here³.  Thanks!
> >>
> >> - Chris.
> >>     
> >
> > Hi,
> >
> > I just tried that patch, but unfortunately nether with nor without it
> > kdb seems not to work.
> > It could be id10t error from my side, but I did test the kdb in the past
> > with few KMS patches, and it seemed to work.
> >
> > Now I can't even get its prompt on the console.
> >
> > This is what I do:
> >
> > echo kbd | sudo tee /sys/module/kgdboc/parameters/kgdboc
> > (also tried booting with kgdboc=kbd)
> >   
> 
> Try changing it to kgdboc=kms,kbd  or the "echo kms,kbd"
> 
> When you use only the kbd, the kms feature is not activated.
This doesn't help.

I am afraid that this bug isn't related to kms, but rather is generic.

Best regards,
Maxim Levitsky