Finally a fix to OLED VRR near black gamma flicker?

[Grim5]

Someone has posted a guide on the 3d guru forum claiming to have completely stopped all VRR flicker on his OLED.

His "solution" isn't very complicated; use the CRU tool to create to a custom windows resolution for your monitor or TV and set the max refresh rate to 10hz below native for the panel. So if it's a 120hz TV, set the refresh to 110hz.

And that's it, they claim capping the window output refresh to 10hz below the monitor's native max will stop all VRR flickering. However don't be confused with framerate and refresh, capping framerate to 10fps below max refresh does not fix flicker, only capping the refresh will fix the flicker according to the users

Fixing VRR Flickering for the LG C2 and other OLED / QD OLED Displays

This is a guide for the LG C2 42” – My Monitor – And how I solved all VRR Flickering issues. Other LG C Series TV’s should be similar. The idea is to...

forums.guru3d.com

 

[BS Dave]

Ooh I have a C2!!

 

[srekal34]

Cant imagine how its supposed to work, flicker is due to the shift of gamma, not some "bug" but I would be very happy if it turns out true.

 

[Sc00p007]

Knowing what causes the flicker, I am very doubtful of this fix. Will try later after work.

 

[Grim5]

Someone can try it and report results


Saw this from another post on that forum, guy has a 240hz woled monitors

"Fixed flicker with CRU for Gsync!

Just set 24-229Hz in refresh range and edit 1440p resolution in Display ID data block to 230Hz (double click on it and just edit Hz).
Tested so far Diablo 4 HDR as it has prominent when loading - grey flicker - No More !

Finally fixed permanently, VRR works as it does with IPS !!
Tested in:
BF 2042 HDR no loading screen strobing/flicker
Diablo 4 HDR ^^same ^^
Forza H5 HDR ^^same ^^
Razer Synapse no flicker in Studio Mode (I have Huntsman V2 Linear + Naga Trinity combo)
No flicker in Photoshp also.

UPD.2
Explanation:
The problem is that, the signaling goes beyond safe bounds thus flicker/strobing occurs (My monitor is 240Hz so im assuming that, value 230Hz is safe and in-bounds).
Tweak is about to have much safer Signal Out of bounds margin of 10Hz."

 

[srekal34]

Finally fixed permanently, FreeSync works as with IPS !!

Stopped reading after that. Most IPS with freesync flicker like crazy.

 

[Grim5]

Stopped reading after that. Most IPS with freesync flicker like crazy.

I don't think English is his first language

 

[MikeLoader]

LOL..yeah right. Seems like a lot of ********!

 

[srekal34]

Anyone tried it? For fun, I tried setting up a res in CRU but couldnt seem to make it work on aw3423dw.

 

[mrk]

I've not seen VRR flicker in a game since the AW3423DW got the recent firmware update, so no point in testing this. Unless someone can point out a game where it still happens then I can't test it. I was seeing VRR flicker at 144Hz before anyway (monitor is 175Hz of course but at 10-bit it's 144Hz).

 

[Nexus18]

You now using 175hz @mrk

 

[mrk]

No I still want my 10-bit colour output for my peace of mind!

 

[shankly1985]

I've not seen VRR flicker in a game since the AW3423DW got the recent firmware update, so no point in testing this. Unless someone can point out a game where it still happens then I can't test it. I was seeing VRR flicker at 144Hz before anyway (monitor is 175Hz of course but at 10-bit it's 144Hz).

I have the AW3423DWF running custom CRU with 10bit at 160hz.

 

[mrk]

Does that work on the DW? And doesn't break Gsync? not that 144 to 160 is a noticeable difference

 

[Sc00p007]

I tried and it hasn't fixed vrr flicker.

It seems like it is similar to the fix that others in here have suggested. They run at 144 and that reduces or eliminates a certain type of flicker that sometimes appear in app. Eg for me razer synapse and fan control can kick off the flicker.

But in games where the fps is jumping around, the flicker is still there.