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

[Jamison D. <da...@cs...>]

Yes, the trapezoids are spinning and they appear to be framelocked.

Jamison

Katharine Chartrand wrote:
> Are the white trapezoids spinning?
> 
>  >KNC<
> 
> At 09:38 AM 10/7/2004 -0400, you wrote:
> 
>> Hi,
>>
>> I see the two white trapezoids also when I run this code on our 3000G 
>> opteron cluster.  However, the frames appear to be synchronized.  I 
>> ran swaplock -f 300 and swaplock -f 1000 on two seperate nodes.  The 
>> buffer swaps appear to be completely in sync.
>>
>> I tested this on both the x86_64 6106 drivers and the x86_64 6111 
>> drivers.
>>
>> Jamison Daniel
>> Oak Ridge National Laboratory,
>> d5...@or...
>>
>>
>> On Wed, 6 Oct 2004, Chartrand Katharine N. wrote:
>>
>>> They aren't really animating.  What I see is two white trapazoids not
>>> doing anything.  What should I see?
>>>
>>>> KNC<
>>>
>>>
>>> On Wed, 6 Oct 2004, Brian Paul wrote:
>>>
>>>>
>>>> Not necessarily.  The true test is looking at the screens and
>>>> observing if they're animating/updating in lock step.
>>>>
>>>> -Brian
>>>>
>>>> Chartrand Katharine N. wrote:
>>>>
>>>>> Brian,
>>>>>
>>>>> If I get the following in both terminals does that mean it worked?
>>>>>
>>>>> glXQueryMaxSwapGroupsNV: maxGroups=1 maxBarriers=1
>>>>> glXJoinSwapGroupNV worked!
>>>>> glXBindSwapBarrierNV worked!
>>>>>
>>>>>
>>>>>> KNC<
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> On Thu, 23 Sep 2004, Brian Paul wrote:
>>>>>
>>>>>
>>>>>> 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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