Custom Resolution Utility (CRU)

[ToastyX]

(01-07-2026 12:39 PM)Theonepugna Wrote:  I meant the reverse, ive deleted the tv resolutions and kept one resolution for 59.94hz which madvr says I have no framedrops/repeats, how do I verify if my tv treats the custom resolution different from tv resolution? i have a sony a80l oled, if I set the timing for automatic HDTV I get framedrops like 1.57 in madvr, and if i set the one from madvr its closer to CVT RB in totals but I get the correct playback I think, madvr shows no framedrops/repeated frames

Thats why I would like to know if there would be some visual downgrade

You should be able to see if there's a difference.

[vagrant]

Quick question:
A year or two ago, deleting 4096x resolutions from some displays (like my LG CX) caused a driver bug in the nvidia control panel where 80% of the settings are no longer available. Some settings are still changeable via ProfileInspector, but GPU scaling is not one of them (I need this enabled).
I'm wondering was this ever fixed, or has there been any update on the issue?

[juanme555]

why cant i get 240p to render? im using a CRT Monitor with Displayport to VGA adapter on my GTX 1080 Ti , W10, latest drivers.

On CRU i use the DisplayID 2.0 extension block and 256x240p and 320x240p 120hz both surpass the 30kHz minimum and yet cant render, i thought displayport didnt have the 25mhz minimum pixel clock requirement that HDMI has, so whats the issue?

[ToastyX]

(Yesterday 03:30 AM)juanme555 Wrote:  why cant i get 240p to render? im using a CRT Monitor with Displayport to VGA adapter on my GTX 1080 Ti , W10, latest drivers.

On CRU i use the DisplayID 2.0 extension block and 256x240p and 320x240p 120hz both surpass the 30kHz minimum and yet cant render, i thought displayport didnt have the 25mhz minimum pixel clock requirement that HDMI has, so whats the issue?

Well I don't know if the GPU actually supports pixel clocks less than 25 MHz with DisplayPort. The driver seems to allow it, but I don't have a way to test it. The adapter would have to support it as well.

[ToastyX]

(01-11-2026 06:46 AM)vagrant Wrote:  Quick question:
A year or two ago, deleting 4096x resolutions from some displays (like my LG CX) caused a driver bug in the nvidia control panel where 80% of the settings are no longer available. Some settings are still changeable via ProfileInspector, but GPU scaling is not one of them (I need this enabled).
I'm wondering was this ever fixed, or has there been any update on the issue?

I don't have any updates on the issue since I don't have a way to trigger it myself. That's something NVIDIA has to deal with. The issue has been around for years, and I'm not sure what the trigger is because not everyone runs into the problem. You can try setting GPU scaling before using CRU, and the setting might stick.

[YETI#4458]

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