Re: [Chromium-dev] Re: Nvidia 3000G Support

I am running nvidia 3000gs with the 6591 driver and linux 2.4.26 and I 
am not sure I have a swaplock or framelock problem.  Everything 
seems to be in sync unless I have a very large data set in a particular 
application (not running over chromium).  With this application, an image 
on our multipanel display will be six inches out of alignment between 
panels as we translate it quickly.  My hunch, however, was that the 
problem was with  
the application, not the cards because we see the same behavior with our 
wildcats cards.  

This 6591 driver was given to us by nvidia to stop a combination of 
problems: stereo flickering and chromium apps crashing, and it seems to 
have fixed them both.  I don't believe it is a released driver, but I will 
ask our nvidia contact if I can distribute it.  My questions are:

1. can I have a copy of your test program so I can see if I have this 
framelock problem (and don't know it!) with this 6591 driver.

2. what are the exact symptoms of this type of framelock, swaplock 
problem. For example, would stereo work at all with this framelock problem 
you describe.  Would you just get a flicker in the stereo? 

>KNC<

On Thu, 23 Sep 2004, Brian Paul wrote:

> Sean Ahern wrote:
> > Ricky Uy wrote:
> > 
> >>Hi, I remember that a little while ago there was talk that some people
> >>were implementing 3000G support in Chromium to handle frame synch
> >>using some of the API that is provided by Nvidia with the cards.  Has
> >>this been completed?  If not, what issues are left to resolve?
> > 
> > 
> > This has yet to be completed.  We are working with nVidia to resolve the
> > technical issues, but have yet to reach resolution.  Since we haven't
> > been able to fix the problem with test apps, there as of yet no reason
> > to fully integrate the API changes into Chromium or DMX, though there is
> > some support in the render SPU.  (see is_swap_master, num_swap_client,
> > nv_swap_clients, nv_swap_group, and swap_master_url)
> > 
> > I'm sure Brian has more comments about this.
> 
> Not much to add.  I haven't heard of anyone having any luck with the 
> 3000G swaplock or framelock feature.  NVIDIA and other parties have my 
> test program.  Until it works with the test programs, there's no point 
> in trying with Chromium.
> 
> 
> -Brian
> 
> 
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