After the poor desktop environment performance on Rocky I’ve decided to try ALMA Linux (another RHEL based) to test the video settings and Blender performance.
With Alma, the desktop environment is just a little bit better in a fresh-clean install, but Blender performance is just around 1~3% worst on heavy 3D loads like sculpting than Rocky, but both are incredible stable.
After install the official NVIDIA drivers through their RHEL 9 repo. I’ve decided to tweak NVIDIA SETTINGS to take a look if I can get the same Rocky performance under ALMA, them I’ve discovered that by some weird reason, my secondary monitor was set to 24.something HZ.
It’s not a real issue with Alma, the ‘frame loss’ it’s ALMOST unnoticeable, but there a little flickering on the screen.
I’ve back to Rocky today, after a fresh install with NVIDIA proprietary drivers from RHEL 9 repo and set the HZ to 50~60 make the problem disappear, 24-30 causes the problem.
This problem with low HZ is persistent with RPM Fusion and official NVIDIA repo under X11, I’ve forgot to test Wayland under Rocky and ALMA.
So if you get something, try to check the HZ. I hope this can be useful to someone else using a mummy 10 series under Linux.
TY for the support.