Custom Resolution Utility (CRU)

[ToastyX]

(Yesterday 04:25 AM)YETI#4458 Wrote:  Hello and thank you

Im pretty new to PC (Mac for a long time)

Pixio27u Wave 4k 160hz monitor via DP 2.1 to a new MSI Aegis ZS2 (5080/9900x)

The issue im having is that every time I alt tab out of a game, or when the monitor wakes up from sleep, it reverts back to 60hz.

I went down a chat gbt rabbit hole and troubleshot as much as I could but have not found a solution. Tried doing a "hard reset" i.e. unplug/reboot etc, changing settings in services, its a long list.

With CRU, should I be able to "lock" 160hz? I only use 4k so I would not necessarily change my resolution.

Im not an expert on the technical side, but are there technical/software limits to the monitor/GPU that would cause this? i.e. DSC? (which my monitor does not support) ... in short, is using CRU in this case safe?

TBH I dont think its a significant problem because when it matters i.e. in game, Im still getting up to 158hz (set in nvidia as global limit) according to nvidia/afterburner... but It just seems like its not behaving "normally" and Im looking for a solution.

Thank you

I don't know what would cause that to happen, but you can use CRU to delete every refresh rate except 160 Hz.

[ToastyX]

(Yesterday 09:44 PM)juanme555 Wrote:  only once, when i first tried it, it worked.

Then only blackscreen.

You can try increasing the blanking to raise the pixel clock above 25 MHz if the monitor can handle that.

[ToastyX]

(Today 01:10 AM)Presently42 Wrote:  Yet another black screen of despair: changes in cru to the televisor's settings, including to previously working ones!, result in a black tv screen and a frozen or black lappy screen upon hdmi connexion; with an hdmi disconnexion and hard reboot being needed to unfreeze or unblacken the lappy's screen. I not infrequently have this problem, and can never recall what was done to solve it; and I'm tired of doing battle rather than enjoying films and videos at exactly the right frame rate.

I'd attach logs, but I know of none to attach. As to my system:

Acer Nitro 5 lappy
AMD ryzen with integrated radeon
Nvidia gtx 1650
HDMI 2.0
Televisor capable of everything and anything my lappy can produce

I'm doing something wrong - I just can't figure out what. Any clues?

If the system freezes, that can only be a graphics driver bug. I'm not sure how it works on laptops with both AMD and NVIDIA GPUs, but on systems with a dedicated NVIDIA GPU, it's NVIDIA's driver causing this when there are multiple displays and at least one display has G-SYNC/VRR enabled.

[ToastyX]

(Today 11:52 AM)RyanJW Wrote:  Sorry for what might be a rudimentary question but I’ve spent literally hours tinkering with CRU and my NVIDIA 4070 drivers to no success.

What I want is my LG C9 (which is natively 120Hz but supports 60Hz and 100Hz as standard options and allows pretty much anything if VRR is engaged) to run at 4K@75Hz. This is so I can run without VRR as unfortunately I experience flickering in some games when VRR is engaged.

I have been able to add it as a custom resolution using the Display 2 block however when it switches to it the screen becomes really distorted, like it’s stretched and going way off screen. This is the same if I add it as a cordon resolution via NVIDIA CP.

Any tips or advice on how I might achieve this?

If "Native HDTV" and "CVT-RB" timing don't display correctly, then the TV probably doesn't support custom refresh rates.

[ToastyX]

(Today 12:45 PM)markp Wrote:  Hello ToastyX, first of all thanks for all the hard work and efforts done in the CRU. I discovered this wonderful tool a few days ago but after going through posts and readings multiple days, I still have not been able to configure everything correctly.

I have been given a 27inch monitor (Lenovo Thinkvision), default resolution 1920x1080p. I am trying to force a resolution increase to whatever pixel clock I am allowed to (i.e. 2560x1440p @60Hz@50Hz, etc), so items are smaller.

You didn't say what happens. There's no guarantee a monitor will accept higher than native resolutions even if it's within the pixel clock limits.