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

Even if it's not working, how does one actually wire the cards together?

They have 2 RJ45 connectors for framelock labeled 0 and 1, but I can't
find any docs on how it should be connected? Start at master/0 and
connect that to the first slave/1? And the that slave/0 to the next
slave/1?

Thanks, 

William R Volz,  Senior Research Geophysicist

ChevronTexaco 
Energy Technology Company
Subsurface Characterization Business Line
Interpretation Product Development & Support
4800 Fournace Place, Bellaire, TX, 77401
Tel 713 432 6666  Fax 713 432 2536

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>-----Original Message-----
>From: [email protected] 
>[mailto:[email protected]] On Behalf 
>Of Brian Paul
>Sent: Thursday, September 23, 2004 12:35 PM
>To: Chartrand Katharine N.
>Cc: Sean Ahern; Ricky Uy; [email protected]; 
>[email protected]; Holger Jones
>Subject: Re: [Chromium-dev] Re: [Chromium-users] Nvidia 3000G Support
>
>
>Chartrand Katharine N. wrote:
>> 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.
>
>Unless you explicitly set the proper Render SPU options for framelock, 
>you're not using that facility.  And since I was never able to get the 
>framelock feature to work here, I'm not sure the Render SPU code is up 
>to snuff.
>
>
>> 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.
>
>That sounds like ordinary network/Chromium latency.
>The tilesort SPU sends geometry in round-robin order to the servers so 
>there is some latency in the updates from one server to the next.
>
>
>>  My hunch, however, was that the
>> problem was with  
>> the application, not the cards because we see the same 
>behavior with our 
>> wildcats cards.  
>
>Probably Chromium, not the application.
>
>
>> 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.
>
>Attached.  I've sent it to so many people I figured everyone had it by 
>now. :)
>
>
>> 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? 
>
>Stereo would probably "work" but the left/right synchronization among 
>all the screens wouldn't occur.  It would confuse your eyes and maybe 
>give you a headache after a while.
>
>-Brian
>



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