Custom Resolution Utility (CRU)

[Medeman]

I'm trying to change the FreeSync/VRR range of my Gigabyte FI27Q to reduce brightness flickering (I have this issue and read that it can be eliminated or at least reduced by narrowing the FreeSync range).

My setup:
- Gigabyte AORUS FI27Q connected via DisplayPort to an
- NVIDIA GeForce RTX 3080 using
- Driver version 461.92 and
- CRU 1.5.1

The default range of this monitor is 48-165Hz. I want to set it to 82-165Hz, so this is what I did:




I saved it by clicking OK, after that I ran restart64.exe (I also tried using restart.exe a few times, it seems to do the same thing).

However, my custom FreeSync/VRR range is completely ignored, it still goes down to 48Hz instead of 82Hz (and anything in-between).

I tried:

- Using something other than 82Hz, i.e. 90Hz
- Using reset-all.exe, applying the change again and trying again
- Restarting
- Setting the 82-165Hz range in the HDMI 2.0 extension block as well (in addition to the "Edit..." button at the top)

But nothing worked so far.

The tool itself seems to work: I removed the native resolution of another monitor for testing purposes and indeed after restarting the monitor ran at a lower resolution. I reset after this however, as I don't want this change. I only want to change the FreeSync/VRR range of the FI27Q.

The FI27Q is officially "Gsync compatible".

Any idea what I can try? Any help would be appreciated