Yet Again, GPU Acceleration Nowhere to be Found

NTI-Productions wrote on 11/30/2022, 12:30 AM

Hey there, I've been trying to look for a solution to this before, but I was using Vegas Pro 14 and I've seen over here that Magix crapped the latest build and hardware acceleration compatibility with various (older?) GPU's are now pretty much broken.

But because I was interested in the new effects/transitions in the newest Vegas Pro 20, I ended up buying it, hoping the faulty GPU detection would be gone. However, the problem is still there and Vegas simply can't see my video card, exclusively using my CPU for everything.

Is there something I can try to fix this? Hard resetting or reinstalling didn't work, and I have already the latest AMD drivers installed (Radeon RX550). I've even tried the drivers provided in the built-in update option in Vegas to no avail.

Thanks in advance!!

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Howard-Vigorita wrote on 12/26/2022, 5:24 PM

@Reyfox My Vegas logs report rdna2 cu as: 6900xt=40 and 5700xt=20. I recall seeing some early specs for the 6800 reported as WorkGroupProcessors=30. For prior architecture, Vegas logs say, RadeonVII=24 and VegaM=24. I think those numbers are probably as reported from the OpenCL driver which gets only wgp allocations from the gpu.

Reyfox wrote on 12/27/2022, 6:03 AM

@Howard-Vigorita thanks so much for the additional information. I was concerned over what was listed for "compute units" in the Vegas log file. It was one of those things where I was wondering what was wrong with my GPU. Everything else is reported correctly except that.

Another question. Does this mean that Vegas isn't actually "seeing" the full potential of the wgp since only 1/2 of the compute units are listed? I'm trying to wrap my head around this...