Custom Resolution Utility (CRU)

[Sunspark]

This makes sense, thank you for the insights!

I was playing with the OVT online calculator.. I don't think my setup liked the values it generated very much. What didn't work out at all, was the new CVT-RB3 one.. I tried the spreadsheet for fun which has it and the output was bad. Image was shifted to the side, etc. Tried a different combination of settings because it supports early vsync, different vblanks, etc. got a blank screen. This is one that I think might be more dependent on hardware support. Mine can't use RB3 unless there is an option combo I didn't try that would have fixed the problems.

3 decimal places for the pixel clock does work with xrandr in Linux for all timings. I was experimenting with it to see how close to 23.97602 I could get with a resolution of 1920x1080. 23.97606 is the closest you can get with the usual gtf, cvt formulas, but hardware might not like it as much as others.. the CTA modeline is 23.97608 and for Intel igpus, 23.9761 works well.

[peter4536]

hi,

when trying to copy my detailed res in the extension block it only shows my monitor with 200 hz instead of 240?

[ToastyX]

(09-07-2024 02:35 AM)peter4536 Wrote:  when trying to copy my detailed res in the extension block it only shows my monitor with 200 hz instead of 240?

What's in the main window?

[peter4536]

(09-07-2024 04:52 AM)ToastyX Wrote:  

(09-07-2024 02:35 AM)peter4536 Wrote:  when trying to copy my detailed res in the extension block it only shows my monitor with 200 hz instead of 240?

What's in the main window?

this

[ToastyX]

(09-07-2024 06:09 AM)peter4536 Wrote:  this

That's not the same monitor.

[Dump777]

Hi I have recently got a MSI MAG 274UPF E2, it's supposed to run at 4K 160hz over HDMI 2.1 (which my laptop does have), but nvidia only shows 4K 120 support on control panel and also not sure why the color says YbCr420 I think, sorry I am a bit new to this just wanted to get 4K 160 to work , nvidia also shows HDMI-HDTV. If any one has any ideas how I can't get it to work?
Because deleting TV resolutions etc just gives me a blackscreen/no signal and the system locks up.
In only of the extension blocks it does list 4K 160hz but not sure how that can be accessed.
HDR only works on 60hz as well.

Please let me know if I need to put any additional details.

[ToastyX]

(09-07-2024 02:59 PM)Dump777 Wrote:  Hi I have recently got a MSI MAG 274UPF E2, it's supposed to run at 4K 160hz over HDMI 2.1 (which my laptop does have), but nvidia only shows 4K 120 support on control panel and also not sure why the color says YbCr420 I think, sorry I am a bit new to this just wanted to get 4K 160 to work , nvidia also shows HDMI-HDTV. If any one has any ideas how I can't get it to work?
Because deleting TV resolutions etc just gives me a blackscreen/no signal and the system locks up.
In only of the extension blocks it does list 4K 160hz but not sure how that can be accessed.
HDR only works on 60hz as well.

Your laptop doesn't support HDMI 2.1 FRL, so it's basically HDMI 2.0, which can only do 3840x2160 @ 120 Hz with YCbCr 4:2:0 and 8 bpc. HDR requires 10 bpc, so that would limit 3840x2160 to 60 Hz with YCbCr 4:2:2.

[Dump777]

(09-07-2024 04:35 PM)ToastyX Wrote:  

(09-07-2024 02:59 PM)Dump777 Wrote:  Hi I have recently got a MSI MAG 274UPF E2, it's supposed to run at 4K 160hz over HDMI 2.1 (which my laptop does have), but nvidia only shows 4K 120 support on control panel and also not sure why the color says YbCr420 I think, sorry I am a bit new to this just wanted to get 4K 160 to work , nvidia also shows HDMI-HDTV. If any one has any ideas how I can't get it to work?
Because deleting TV resolutions etc just gives me a blackscreen/no signal and the system locks up.
In only of the extension blocks it does list 4K 160hz but not sure how that can be accessed.
HDR only works on 60hz as well.

Your laptop doesn't support HDMI 2.1 FRL, so it's basically HDMI 2.0, which can only do 3840x2160 @ 120 Hz with YCbCr 4:2:0 and 8 bpc. HDR requires 10 bpc, so that would limit 3840x2160 to 60 Hz with YCbCr 4:2:2.

oh okay is this the norm ? from what i could find pretty much everywhere online its not specifically mentioned what type of port is present etc .

so my laptop is a Acer Nitro 5 AN515-45-R2GL
(similar skew on a forum: https://community.acer.com/en/discussion...15-45+HDMI)



So HDR works for any resolution below 4k 120Hz (so 4k60,2k120 etc) , is this also the effect of bandwidth shortage then ? and would it be possible to get 160hz on any other resolution ? I mean 4K 120 is good enough yes but just curious. Thanks for the info

[ToastyX]

(09-07-2024 04:43 PM)Dump777 Wrote:  oh okay is this the norm ? from what i could find pretty much everywhere online its not specifically mentioned what type of port is present etc .

so my laptop is a Acer Nitro 5 AN515-45-R2GL
(similar skew on a forum: https://community.acer.com/en/discussion...15-45+HDMI)

If it's supposed to support 48 Gbps, then there's a driver issue somewhere. I can't find specific information on this particular model, but if it has an AMD Ryzen CPU with Vega 8 GPU and switchable graphics with an NVIDIA GPU, then the Vega 8 GPU is the limiting factor because it only supports HDMI 2.0. If the laptop has a way to turn off the Vega 8 GPU and use only the NVIDIA GPU, then it might work.

(09-07-2024 04:43 PM)Dump777 Wrote:  So HDR works for any resolution below 4k 120Hz (so 4k60,2k120 etc) , is this also the effect of bandwidth shortage then ? and would it be possible to get 160hz on any other resolution ? I mean 4K 120 is good enough yes but just curious. Thanks for the info

Yes, HDR requires 25% more bandwidth for 10 bpc versus 8 bpc. Yes, 160 Hz is possible at lower resolutions if the monitor allows it as long as the pixel clock is no more than 600 MHz for 8 bpc/4:4:4, and 480 MHz for 10 bpc/4:4:4. 2400x1350 @ 160 Hz is possible with 8 bpc/4:4:4. YCbCr 4:2:2 would allow up to 900 MHz for 8 bpc and 720 MHz for 10 bpc if the GPU allows 4:2:2 for custom resolutions. 2560x1440 @ 160 Hz should be possible with 10 bpc/4:2:2 and HDR. Currently custom 4:2:0 resolutions are not possible.

[Dump777]

(09-07-2024 05:42 PM)ToastyX Wrote:  

(09-07-2024 04:43 PM)Dump777 Wrote:  oh okay is this the norm ? from what i could find pretty much everywhere online its not specifically mentioned what type of port is present etc .

so my laptop is a Acer Nitro 5 AN515-45-R2GL
(similar skew on a forum: https://community.acer.com/en/discussion...15-45+HDMI)

If it's supposed to support 48 Gbps, then there's a driver issue somewhere. I can't find specific information on this particular model, but if it has an AMD Ryzen CPU with Vega 8 GPU and switchable graphics with an NVIDIA GPU, then the Vega 8 GPU is the limiting factor because it only supports HDMI 2.0. If the laptop has a way to turn off the Vega 8 GPU and use only the NVIDIA GPU, then it might work.

(09-07-2024 04:43 PM)Dump777 Wrote:  So HDR works for any resolution below 4k 120Hz (so 4k60,2k120 etc) , is this also the effect of bandwidth shortage then ? and would it be possible to get 160hz on any other resolution ? I mean 4K 120 is good enough yes but just curious. Thanks for the info

Yes, HDR requires 25% more bandwidth for 10 bpc versus 8 bpc. Yes, 160 Hz is possible at lower resolutions if the monitor allows it as long as the pixel clock is no more than 600 MHz for 8 bpc/4:4:4, and 480 MHz for 10 bpc/4:4:4. 2400x1350 @ 160 Hz is possible with 8 bpc/4:4:4. YCbCr 4:2:2 would allow up to 900 MHz for 8 bpc and 720 MHz for 10 bpc if the GPU allows 4:2:2 for custom resolutions. 2560x1440 @ 160 Hz should be possible with 10 bpc/4:2:2 and HDR. Currently custom 4:2:0 resolutions are not possible.

the HDMI 2.1 connects directly to the dGPU becuase its a MUXLess laptop(so i have gsync and everything) and the Display 1.3 Block does show the 4K 160hz spec not sure how all this works
(but i also cannot switch to GPU scaling most likely because of This hybrid graphics setup maybe?)
i don't know if any laptop explicitly says HDMI 2.1 FRL so just want to see whats doable and whats not