Completely stopped working.

EmilyLav wrote on 7/23/2025, 6:18 AM

Hey there. I swapped my GPU from 4090 to a new 5090, and Vegas pro 22 build 250 is not working at all.

I drop the file into Vegas, and it just crashes straight away. Tried different drivers, and also new Windows update, no luck.... It was fine just a week ago. Tried to change to CPU in Video Tab, not helping as well.

PS. Tried "Experimental HEVC decoding", doesn't crush any more, but the performcence is way worse, than it was with my 4090 and software freezez every 5 seconds, completely unusable.

Comments

RogerS wrote on 7/23/2025, 7:45 AM

What driver version are you using now? Current studio driver?

It may not help but have you tried resetting VEGAS? https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-reset-vegas-pro-to-default-settings--104646/

Are the crashes specific to the media you are trying to add- could you share MediaInfo for it? https://www.vegascreativesoftware.info/us/forum/faq-how-to-post-mediainfo-and-vegas-pro-file-properties--104561/

EmilyLav wrote on 7/23/2025, 7:57 AM

What driver version are you using now? Current studio driver?

It may not help but have you tried resetting VEGAS? https://www.vegascreativesoftware.info/us/forum/faq-how-can-i-reset-vegas-pro-to-default-settings--104646/

Are the crashes specific to the media you are trying to add- could you share MediaInfo for it? https://www.vegascreativesoftware.info/us/forum/faq-how-to-post-mediainfo-and-vegas-pro-file-properties--104561/

It was crushing with previouse one, I've updated it to 577 studio yesterday, didn't help. I have also reinstalled vegas, and resseting it broke it even more, now it just freezes.

RogerS wrote on 7/23/2025, 8:00 AM

Thanks for that. So it's 10-bit 422 HEVC. While your new GPU supports this, I haven't heard VEGAS yet can decode this with NVIDIA 50XX GPUs.

As a workaround if you go to preferences/ file io and change hardware decoder to off, does that help? If your CPU has Intel QSV you could change it to that as well.

EmilyLav wrote on 7/23/2025, 8:08 AM

Thanks for that. So it's 10-bit 422 HEVC. While your new GPU supports this, I haven't heard VEGAS yet can decode this with NVIDIA 50XX GPUs.

As a workaround if you go to preferences/ file io and change hardware decoder to off, does that help? If your CPU has Intel QSV you could change it to that as well.

What you mean it's not supported, it's been almost half a year from when GPU's were released... What a disappointment, so much money were spent .... It worked, but I bought a better GPU in a first place to get better performance, not worse.

RogerS wrote on 7/23/2025, 8:55 AM

I haven't seen many reports from 50XX users yet but all I know is what is in the release history and don't see any mention of this with VP 22:
https://www.vegascreativesoftware.info/us/forum/vegas-pro-vegas-post-release-history--104998/?page=3

Hopefully with 23?

Turning off GPU decoding shouldn't result in worse performance than the 4090 which also couldn't decode this media.

Alan-Smithee wrote on 7/23/2025, 9:43 PM
 

PS. Tried "Experimental HEVC decoding", doesn't crush any more, but the performcence is way worse, than it was with my 4090 and software freezez every 5 seconds, completely unusable.

This could explain it

"After Nvidia pulled the plug on 32-bit CUDA support with CUDA 12.0 (and later), technologies built around this platform such as PhysX subsequently reached End Of Life. A new report from PassMark at X suggests that dropping legacy CUDA support extends its impact to older OpenCL code, written for 32-bit systems. This explains the lackluster performance in PassMark's Direct Compute benchmark, part of which contains 32-bit chunks of code; likely older libraries or modules.

Nvidia hasn't flipped the switch all of a sudden with one update. Legacy CUDA support has been gradually phased out through successive updates over the past few years. Notably, programs written with 32-bit CUDA in mind can still be run on RTX 40 or older hardware. On newer RTX 50 GPUs, older CUDA applications now fallback to the CPU, which is abysmally slower than the graphics card for parallel processing, as seen with PhysX."

When Vegas freezes every 5 seconds is there a spike in CPU use?

https://www.tomshardware.com/pc-components/gpus/nvidias-poor-rtx-50-compute-test-results-due-to-missing-32-bit-opencl-support-says-passmark