Owners of Freesync Monitors can enlarge Hz range with simple hack

by Hilbert Hagedoorn on: 09/25/2015 09:02 AM | source: | 19 comment(s)

One of the negative dependencies for AMDs FreeSync is that you are tied and limited towards the operational range in Hz the monitor is capable off. A new tool, let's call it driver mod allows you to change the parameters so you can enlarge the FreeSync range. Users in our forums report this to be working.

The hack was published last month already, yet we are seeing increased interest in it so here's a little guide. By all means this is experimental. Now the procedure is a tad technical, but you need to download the following tools:

Here's what you need to do step for step (screenshot courtesy of OC_Burner). First you extract the EDID infomation into a file:

Then EDID modification #1:

Then EDID modification #2:

Monitor.inf driver creation:

Adding newly created driver range info:

Deactivate Windows Driver signature:

Install monitor driver:

Enjoy the changed dynamic range ... We have seen users report framerates as low as 33 Hz supported.

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Brisse
Member

Posts: 99
Joined: 2015-05-28

#5163975 Posted on: 09/25/2015 02:50 PM

Okay, cool hack, but there must be a reason behind the limits that manufacturers puts into each model, right? I'm perfectly happy with the 35-90hz my MG279Q provides so I'll stick to that

schmidtbag
Senior Member

Posts: 6202
Joined: 2012-11-10

#5163993 Posted on: 09/25/2015 03:16 PM

This isn't that complicated... it's just in-depth.

BoMbY
Senior Member

Posts: 185
Joined: 2014-01-30

#5164090 Posted on: 09/25/2015 06:15 PM

A little older, but still good. My BenQ XL2730Z seems to work with 32-144 Hz, only Monitor Range Limits are on Descriptor Block 3.

Edit: Original Source is the 3DCenter forum as far as I know.

ReconNinja
Junior Member

Posts: 1
Joined: 2015-09-26

#5164334 Posted on: 09/26/2015 03:08 AM

I tried following this guide for my LG 29UM67 and I got an error on the final install process. It says "One of the installers for this device cannot perform the installation at this time." I then got an INF file used by another 29UM67 user whom had success, but I got the same error using that file as well. Is anyone else getting this?

Fox2232
Senior Member

Posts: 11809
Joined: 2012-07-20

#5164391 Posted on: 09/26/2015 08:38 AM

Windows version, account privileges, signature enforcement, ...

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