Sluggish GUI in T2 Demo

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Hi,

I tried the T2 demo on two different computers and each time it was quite sluggish, with audio dropping out on each screen action such as drag'n dropping a new plugin on a track, double clicking on a track to expand it, etc.

First PC was a laptop with 1.4G centrino 512M ram and dedicated ATI 9600 video

Second PC was a desktop with 2.7G celeron+1024 Ram and ATI graphics as well.

Is is some sort of demo restriction scheme? Any tricks to improve the GUI behavior?
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monsterbeetle wrote: Is is some sort of demo restriction scheme?
No. A few people have experienced sluggish UI repsonse, though mostly Mac users. You're pretty unlucky to see it on two different PCs. I run Tracktion over four different machines, for beta-testing purposes, and I haven't seen slow UI response on any of them.
Any tricks to improve the GUI behavior?
Not really. The audio dropouts can often be fixed by adjusting the PCI latency setting for your video card. A few people have reported that some colorschemes are worse than others for sluggish UI problems (seems odd to me, but it could be an alpha-channel bug, so maybe worth a try).

Beyond that - check the usual: kill uneeded services, background tasks, and the like. Check for virii, spyware, and other issues that can adversely affect performance.
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so maybe it has to do with ATI hardware & drivers?

what gfx card do you 4 pcs have? Matrox or nVidia?


Il try to run the demo on a nvidia based machine.

perhaps the overall sluggish behavior is also due to the directX full duplex driver?

Apparently the ASIO4ALL driver gives some performance problems too with T2...

How do you change the PCI latency setting of a video card? I thought AGP and PCI were totally disconnected?

Thanks for the tips anyway!
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monsterbeetle wrote:so maybe it has to do with ATI hardware & drivers?

what gfx card do you 4 pcs have? Matrox or nVidia?
My primary machine for the last year or more was an ATI Radeon 9000pro, which served me well up until a month or two ago when I upgraded the whole machine. Now I have an nVidia 5000 series card.

My test machines:

AMD 64, nVidia mobo chipset, nVidia video chipset.
2 x AMD 32XP, nVidia mobo chipset, ATI video chipset.
centrino based laptop, with Intel M, Intel mobo chipset, ATI video chipset.
perhaps the overall sluggish behavior is also due to the directX full duplex driver?
I don't know. I always run ASIO. With:
Apparently the ASIO4ALL driver gives some performance problems too with T2...
Not for me, so far, but I don't typically use the laptop for heavy duty work, just testing.
How do you change the PCI latency setting of a video card? I thought AGP and PCI were totally disconnected?
The share the same bus, so they can bottleneck each other. There is an app called doubledawg which is good for adjusting PCI latency.
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dbldawg show that my video card (radeon mobility 9600) has a '255' sized buffer whereas all other peripherals have a '64' buffer. Shall I reduce it or augment it?
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typically people tend to set them all to the same value so that no individual device is bottlenecking others.

Setting the video latency to 64 to match your other PCI devices will probably not make video performance any worse[1], but should fix the audio dropouts.

[1] Video performance is a separate issue that hopefully we can find a workaround for, or will be addressed in a future revision of T.
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