poor playback performance -m171

[kiwi]

It's not the Catalyst software. I'm pretty sure if you're using a different build you will still see the same thing however Simon is right that Richard will have to make that final determination.

The problem you are experiencing is that the video card cannot properly process two TH2G at the same time. There are only three configurations I have had so far that allow for two TH2G to run at the same time without problems for any resolution higher than 2400x600.

1. Gen 2 Intel Mac Pro with nVidia Quatro FX 5600 card
2. Gen 2 Intel Mac Pro with Geforce 8800 GT card
3. Gen 1 Intel Mac Pro with nVidia Quatro FX 4500 card

The x1900 is a solid card. It typically works better on the Gen 1 machines but it won't run 2 TH2G at a resolution higher than 2400x600 on each. Even doing that, it's sluggish.

If you intend to run two TH2G on your machine with the x1900, I suggest you do it running at the lower setting of 1920x480 (3 by 640x480) for each TH2G. If however you want to keep at a higher resolution like 3072x768 (first make sure your content is 25FPS since 3072x768 only works at 75Hz) or at 3840x1024 (which runs 60Hz), I suggest you just run one TH2G at the time or else put one of the Quatro FX cards in your Mac.


Incidentally, I am running m180 which is also a custom version. I don't know what the difference is between your version and mine but I have run m180 in the following environments.

• Gen 2 Intel Mac Pro with nVidia Quatro FX 5600 card
Running 2 TH2G at 3840x1024 (6 screens 1280x1024)
• Gen 2 Intel Mac Pro with nVidia Geforce 8800 GT card
Running 2 TH2G at 3072x768 (6 screens 1024x768)
• Gen 1 Intel Mac Pro with nVidia Quatro FX 4500 card
Running 2 TH2G at 3840x1024 (6 screens 1280x1024)
• Gen 1 Intel Mac Pro with nVidia Quatro FX 4500 card
Running 2 TH2G at 3072x768 (6 screens1024x768)

In each machine, I also ran two 64Gb Mtron SSD disks striped together. If you have any questions, I can review the results of my research and give you feedback.

Todd,
Where did you get the idea that I'm running two THTG? I'm simply running one THTG at 3072x768, nice simple and proven.
I'm pretty sure this is a bug I'm experiencing as I get the same result across different machines of different configurations (Mac Pro, older G5, and mac book pro)
m180 may well have fixed this along with a few other bugs

Paul

[SourceChild]

Where did you get the idea that I'm running two THTG?

Well, at the time I was reading your post, a few girls showed up to take me to the lake. What can I say... I was distracted.

I'm pretty sure this is a bug I'm experiencing as I get the same result across different machines.

I think you're right because m180 and m165 are working fine with my TH2Gs on Gen2 MP and MBP.