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Making a custom resolution in regedit, how to get 144Hz?

post #1 of 3
Thread Starter 
So I'd want to to try out some different resolutions that are not normally listed in the AMD Catalyst Center. I saw a guide on how to make custom resolutions trough regedit.

Because you have to set a value for refresh rate in regedit (afaik) I would set it to 00 00 01 44. I really do not want to mess something up hence why I'm asking about this.

As a side question I wonder if there is a fix for some resolutions only working in centered timings (like 1680x1050) to be stretched/black bars again. It always reverts to centered timings when trying to change it to something else.

Ty!
post #2 of 3
No need to bother with any of that.
Just use ToastyX CRU
But why are you trying to make a 144hz one? It should already be there.

If you want a LOWER resolution that's 144hz, just create the same resolution at 60hz, then enable GPU scaling. Then the 144hz version will be downscaled from native resolution (which I assume is 1920x1080).

And BTW native 144hz resolutions (1920x1080) can't use normal timings. You need LCD Reduced. For 1080p monitors, I think the vertical total value is 1098 (VT). You can manually create something like 800x600@144 or 1024x768@144 by using a 1098 vertical total in a "detailed resolution" in ToastyX CRU.

Also some resolutions are DISPLAY SCALED And some are GPU scaled. If you enable gpu scaling in the CCC, all resolutions will be GPU scaled and use the 1920x1080 data and have the video card downsize it. If GPU scaling is enabled, then you set 1:1, aspect or full in the AMD CCC.

If you're having 1680x1050 show black bars if you selected full, you probably have an ancient version of the AMD Drivers. That was a pretty longstanding bug and it was fixed (finally!) in the first Omega drivers. Before the Omega drivers, you had to switch to a low resolution, like 1280x1024, select 1:1 or aspect or full, then apply then switch back to native resolution. Then the settings would take effect as long as you didn't go back to the aspect settings page again.

If you're using a 1920x1080 monitor and you REALLY want a "display scaleld" low resolution 144hz (which is rather silly...only Nvidia video cards have input lag problems with GPU scaling; low res gpu scaling can cause several frames of input lag on a large # of Geforce drivers), then you create a detailed low res resolution in ToastyX CRU, use "LCD reduced", however it won't reduce the timings correctly since it's lower than native. After you choose LCD reduced and enter the resolution (like 1024x768) and refresh rate, change it to "manual" and change the vertical total to 1098. That will create a display scaled 1024x768 144 hz resolution.

For monitors with other native resolutions, I'm not sure what the VT is for 144 hz. 144hz MUST use reduced Vblank. most monitors cap the normal timings at 128-130hz.
Edited by Falkentyne - 10/27/15 at 7:49am
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post #3 of 3
Thread Starter 
I knew about ToastyX CRU, but since I could have done the same thing without downloading anything I didn't bother with it. I don't necessarily have to make a custom resolution if I could get 1680x1050 to work in stretched and black bars, not black bars all around the monitor. AMD auto driver updater says I have the newest drivers installed. I could use it stretched before (maybe different driver) now it just works with 100Hz. I have the BenQ XL2411Z if that matters.
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