OK, but you made several changes on your system, since.
So, I think it’s worth using a little time to run LatencyMon again, and post here a screenshot of the results., as I would like to see what they look like…
The system was behaving relatively politely today, with only about a third-full spike on the performance meter.
Buffer setting at 512.on RME’s Asio driver, with one instance of Omnisphere running.
PS. My eyesight is terrible, so that’s why LatencyMon is huge.
Thanks for helping…
As for Nvidia, I only have the Studio version of their driver installed for the 4090 - no other Nvidia applications.
That is absolutely unacceptable levels of DPC latency for real-time audio work. Here I thought NVidia Studio Drivers were supposed to solve their DPC issues. This is why I have one PC for gaming and a separate PC for my DAW. No NVidia card will ever go near my audio workstations. It is very clearly the NVidia Kernel Mode Driver causing the problem based on your screen shot. Though everything I have seen about this issue over the years requires a lot of trial and error to resolve it.
I absolutely do not wish to purchase another PC to run Cubase on.
But I need the Nvidia driver as I play a lot of games, especially AAA, so it would appear I’m in a pickle.
Does anyone have any idea where to begin in all of this…
…thanks again for the assistance.
I wonder, is there any way rolling back to an earlier Nvidia driver would help the cause?
I was more or less suspecting the results, but they are even worse than expected. I think that a high-end Radeon could be a solution, in your case, but who knows ?
FWIW, I’m not a gamer, so I have a very basic low end Radeon RX550. Issues ? Absolutely none, this with the use of a a 32" monitor at @2560x1440.
As often, less is more…
Something I don’t understand, why will Cubase run absolutely flawlessly when Omnisphere etc are hosted in Vienna Ensemble Pro?
It appears that when large VST’s are taken out of Cubase, everything is absolutely fine!
I could understand the Nvidia issue better if it didn’t matter what was hosting VST’s - I was still getting the huge spikes?
The biggest thing I have seen when dealing with NVidia-caused DPC latency is disabling power throttling anywhere and everywhere. Turn off higher C-states in the BIOS. Switch to the high-performance power plan and make sure min state is 100%. Switch everything in NVidia Control Panel to max performance.
You can try a few of this guy’s latency videos for some hardcore tweaks and see if they work for you, but buckle up, you’re in for a wild ride!
…oh my God - I need a degree to get this sorted out…
Ok, here’s what I’ve done so far…
Uninstalled Nvidia driver with DDU.
Reinstalled Recommended Nvidia driver with NVCleanstall - disabled tethering (in options) during install.
Enabled Maximum Performance in Power Management Mode on the Nvidia control panel.
Added Cubase in Program Settings under Manage 3D Settings in Nvidia Control Panel.
This was right now with 1 instance of Omnisphere, but with the RME driver buffer at 2048.
…we’re getting there!