So, first of all i have to say i have never managed to get gpu acceleration of video processing to work without issues in any version of vegas pro and i have yet again ran into an issue where the ultimatum seems to be to turn off gpu acceleration and just forget it.
For the first time i actually managed to get gpu acceleration working without vegas pro becoming extremely volatile and prone to crashing.. but i have a new issue, first of all the my 1080ti doesn't actually seem to offer (at least to my eye) any significant performance increase compared to the cpu (though i have quite a beefy cpu, 1950x threadripper) but there should be at least somewhat of a noticable difference don't you agree?
Now the second more serious issue is that now that i have gpu acceleration enabled, whenever i restart vegas/open a project it for some reason completely chokes my cpu without doing anything at least that i can see.
My cpu usage skyrockets to around 40% on ALL THREADS and this is just when doing nothing, this usually lasts around 2-5 minutes if i don't do anything and the issue is that i can't do anything because it absolutely tanks performance.
My 1080ti and a 16c/32t threadripper cant handle a single stream of h264 1080p video above draft(quarter) preview preset and even that plays like crap.
Cpu usage when playing media at quarter of a draft resolution hovers around 60% so before anyone says that it must be a bottleneck on my part that's like saying Og doom running 4 fps on an Xbox One X is a bottleneck issue.
So because vegas crashes a lot and takes already forever to get things running ( not counting the waiting time when first trying to search for an effect etc etc) adding another 5 minutes every time i have to restart or nest a clip is unacceptable.
If you have any suggestions they would be appreciated as i'm at my wits end.
The only solution i can figure out currently that works is to just forget gpu acceleration.
I have been a vegas user for 10 years with over 5000 counted hours in usage time so i'm really desperate for a solution as i DO NOT want to switch programs.
My pc specs in case they are needed to help solve issue:
Gpu: Nvidia 1080Ti + Nvidia 980 (Driver version: 445.75 Game ready because cant be arsed with editing installers every time to enable studio driver support on 980)
Cpu: Amd 1950x Threadripper (temp max at 71c when 100% usage for extended periods of time, usually hovers around 30-40c when using vegas)
Ram: 64gb Corsair 3000Mhz Ddr4
Motherboard: Asus Zenith Extreme (Bios version 1601)
Storage: m.2 250gb for system, usb-c 3.1 500gb ssd for project media and project files
and 22tb of hdd space for archives.