Blur Busters Forums

Hello,
since in this forum maybe there a lot of users with LG OLED series, maybe they've been through my issue.

I had a Samsung QLED with Hdmi 2.1 VRR and for some apps, i needed to keep VRR off. I was used to add game under Adrenaline settings and put freesync voice off.

It seems that with LG OLED C5 (48") this tricks is not possible. If in the global settings, Freesync option is ON, when i start the app with the exception i continue to have freesync ON. So i tried to globally keeping it off and adding under Adrenaline settings apps where having freesync on, but in that case i continue to have Freesync off...

Since LG C5 has a Game optimizer, i tried to turn it off, with same behaviour.

The only way to turn ON/OFF freesync is via remote control, but unfortunately there's not a dedicated button and you need to go through a lot of voices. I use this PC with RX 6400 as Mediacenter, i don't play any PC games with that, just retrogaming with Mame, Retroarch, Flycast and so on

It's a bit annoying this "issues" , hoping that is not LG C5 related but just about my enviroment.

any hints ? thanks

cybermat wrote: ↑

21 Apr 2026, 07:38

Hello,
since in this forum maybe there a lot of users with LG OLED series, maybe they've been through my issue.

I had a Samsung QLED with Hdmi 2.1 VRR and for some apps, i needed to keep VRR off. I was used to add game under Adrenaline settings and put freesync voice off.

It seems that with LG OLED C5 (48") this tricks is not possible. If in the global settings, Freesync option is ON, when i start the app with the exception i continue to have freesync ON. So i tried to globally keeping it off and adding under Adrenaline settings apps where having freesync on, but in that case i continue to have Freesync off...

Since LG C5 has a Game optimizer, i tried to turn it off, with same behaviour.

The only way to turn ON/OFF freesync is via remote control, but unfortunately there's not a dedicated button and you need to go through a lot of voices. I use this PC with RX 6400 as Mediacenter, i don't play any PC games with that, just retrogaming with Mame, Retroarch, Flycast and so on

It's a bit annoying this "issues" , hoping that is not LG C5 related but just about my enviroment.

any hints ? thanks

You could create a custom ToastyX mode with the VRR range deleted.

Get ToastyX CRU from www.monitortests.com and create a custom refresh rate with no VRR range.

If i did this i remove the VRR in the edid of my tv...maybe i don't how to use CRU...

I want a 4k res with Vrr
I want a 4k res without Vrr

I think that is not feasible

cybermat wrote: ↑

22 Apr 2026, 16:10

If i did this i remove the VRR in the edid of my tv...maybe i don't how to use CRU...

ToastyX only does EDID overrides on the PC side.

Doing EDID overrides in the TV sides requires a little bit of EDID hacking or other approaches (EDID rewriting dongles), which is much harder than simply using ToastyX on a PC as the method of turning on/off VRR. This may or may not work with consoles that might not respect these EDIDs, but it would work fine with the specific PC whose EDID overrides has been modded with ToastyX.

cybermat wrote: ↑

22 Apr 2026, 16:10

I want a 4k res with Vrr
I want a 4k res without Vrr

I think that is not feasible

In theory you can create multiple EDIDs at different resolutions or refresh rates.

Example:

- 59.94Hz vs 60.00Hz (different significant digits. But other times you need to be at least 1 full Hz apart)
- 3840x2159 vs 3840x2160 (sometimes scalers tolerate it, add 1 to Front Porch or Back Porch if you decrease vertical)

You can assign VRR to only one of the EDIDs that way. Be noted you may or may not get glitches depending on display (e.g. ugly scaling instead of missing pixel row).

ToastyX Strobelight used this trick to turn on/off LightBoost over a decade ago, it simply switched between 119Hz vs 120Hz.

Strobelight is open source, so you'd simply modify the source code and replace the two LightBoost modes with with 4K 59.94 no-VRR vs 4K 60.00 Hz VRR as the method of turning on/off VRR via a system tray utility. Or if it is a 120Hz TV, then a 4K 119.88 Hz vs 4K 120 Hz. Or 119 or 119.5, just be extremely close but not too close (either can fail).