Satellite P100: BSOD nv4_disp infinite loop playing a game

Hello

I hope you can see my details of my profiling system, but in case you can't, here are the basic details:

Satellite P100-113; 2x2.0GHz; 2 GB of memory; XP Pro SP3. Go 7600 256 MB - factory core/mem speed 350 / 400 MHz - no overclocking.
Out of warranty: purchased as a plant-reclamation in 2006. No problem at all until this - great machine!

I tried for 2 weeks to resolve the formidable 'in nv4_disp infinite loop' blue screen of the problem of death, which occurs when playing company of Heroes Opposing Fronts (COHOF). Original COH has always run without any problem.

I think I tracked down what is happening. Using RivaTuner, I took a log of data GPU, both in the general use of Windows and by practicing a COHOF game. I had just downloaded a "fix" claimed this infinite loop problem; referenced in the nvidia forum.
I think it was the only reason that the game did not plant this time, so that I could look at the newspaper. But this has not yet resolved the problem.

What is clear, according to the journal of Riva, it's the GPU speeds are usually 0/0 on Windows. Then, every few minutes, he crawls up to something like 198/135, for only 10-20 seconds and then again. This, in my opinion, has always happened, because it is accompanied by a rapid acceleration of the fan and a "sigh" to air for a few seconds. The machine has always done since I bought it, and it is not a problem in normal conditions (i.e. not game) use.

But here'w what happened in the game. After playing about 30 minutes (I noted earlier), the game suddenly stuttered horribly, so I thought it might be breaking. FPS increased from typical of 30-40 something like 0.5 to 2 FPS. And this continued for another 15 minutes (I went to play, with gritted teeth, in order to obtain good log data).

Looking at the newspaper of Riva, what happened at that time was one of these speed GPU rampdowns: down 351/398 expected 198/198 - just for about 15 seconds, then go back to the top to 351/398. Given that the "infinite loop" error includes a description "device driver entered an infinite loop waiting for the material to answer", I am fairly certain that it is the cause of the infinite loop BSOD: If the GPU suddenly decides to run at reduced speed in half, under heavy load (COHOF has often been described as the ultimate stress-test system) , you expect this kind of error occurs. I suspect that this is the point to which I would have had a crash "infinite loop" - but perhaps the 'fix', I downloaded caught the ball and prevented the usual total crash.

Temperature: absolutely perfect. I use a Zalman cooler under the machine. Riva reports temperatures GPU 51 c (idle), maxing out at a constant C 66-68 without crampons (load, COHOF). So, my driver unless (I tried 84.4 - later, Toshiba or 91.33, 156.13, 164 something laptopvideo2go.com) is a misinterpretation of the temperature data and imagine that the card needs to be rested (because the driver thinks, it's hitting the ceiling of 115 HP.), is not an overheating problem.

The fact that go up and down this rise has always happen, even with the original drivers installed at the factory from Toshiba (the regular intermittent fan 'sighs') makes me think that this is part of Toshiba design for integration of the Go 7600 in this machine. Perhaps something of the power management, or to extend the life of the chip. (I have all the settings of power-mgmt software I can find the value "grass of the battery, give me performance", since I usually use the machine plugged).

Now, it of very well under Windows, does not cause problems. But he won't. The GPU is ramping down, without apparent reason, while COHOF is throwing a huge workload on it.

Issues related to the:
1. How can I disable this behavior ramp - at least temporarily to play COHOF? I've never heard of a GPU accelerates its speed goes up and down depending on the load, so I doubt it's problem of nVidia.
2. can I get an updated driver for this machine? The most recent is 84.4.0. Of course, it is possible to download drivers from laptopvideo2go.com modded-, but I suspect that these pilots to leave out some specific Toshiba 'magical' that manages the specific details of this card in this machine. (p. ex. or SpeedFan and Riva can detect any fans in my system, which suggests that Toshiba took control of the fan "under the hood" somehow).
3. where can I get an update BIOS/firmware for the Go 7600? You can find anything on the net, apart from that!

Looks like I need to take this with a hardcore of Toshiba tech (I don't know if Toshiba supports log on this forum); But if someone reads this and has a time "click - I know that this", please post some ideas as to what I can do.

Hey Buddy

It seems that this Toshiba forum is only a user forum, and it seems there are only Toshiba users here and not technicians.

In any case if I understand you problem described in your long ad, the graphic issue appears only this specific game (company of Heroes Opposing Fronts).

In my opinion, the graphics driver is not fully compatible with this game or your game does not support the nVidia Driver
So it s not a problem with the laptops hardware, but compatibility issues between the two parties game<->graphics driver software

I think a graphics driver update (if available) might help.

Here are my responses regarding the points:

(1) as I said above, I think that the graphics driver update might help to
(2) according to my experience, all the latest drivers graphics (and other drivers) are published on the Toshiba driver website
(3) you can find only a Toshiba BIOS on the Toshiba driver page. BIOS or firmware update graphic card is unknown to me and to be honest I don t think it would exist.

See you soon

Tags: Toshiba

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