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Dump777 · (Last edited: 09-07-2024, 08:04 PM by Dump777)

(09-07-2024 07:44 PM)ToastyX Wrote:
(09-07-2024 06:12 PM)Dump777 Wrote: 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
HDMI 2.1 usually means it supports FRL, but then the HDMI Forum basically said anything that supports HDMI 2.0 can be considered HDMI 2.1 because the new features are optional, so now there is confusion about what 2.1 actually means. They should have called it HDMI 3.0 because 2.1 is vastly different from 2.0. Whatever the case, the laptop is acting like it doesn't support FRL, so either it's not supposed to, or there's a driver or firmware issue preventing it from working.

(09-07-2024 07:23 PM)Dump777 Wrote: Also i can't really edit stuff under the detailed res slot as it putting 160hz just goes red
and under Extension Slots CTA 861 i can add stuff under TV res but i cannot manually put 2560 x 1440 so not sure what to do to get 160hz under 4K
Anything beyond 655.35 MHz pixel clock needs to be in a DisplayID extension block.

ok so i added 2560 x 1440 with 144hz again manually (its already there in displayID) and now i do see pop up in nvidia control panel too but 2560 x1440 @ 160hz gave me a black screen (maybe its because of the HDR thing which i am not sure how to specifiy it should be at 4:2:2 or whatever the case) trying to see now if i can re-add 3840 x 2160 @144 hz and see if it appears)

the ones marked red show up in control panel
P.S 1440p @144hz does work with HDR 8bpc (604MHz pixel clock)
P.P.S can confirm 2160p @144hz also does not show up (not sure how is 2160p @120 NOHDR 8bpc is over 1000Mhz is working and 1440p @160hz does not (goes HDR by default), not sure how to restrict NOHDR for 1440p maybe it works then ?)

Please let me know how do i get NO HDR with 1440p so i save some bandwidth at push up to 160hz maybe ?

I have a ticket open with MSI to see what they have to say? maybe we get some more answers there but i'd would not be surprised if HDMI FRL is the issue? but could it be that these 2160p is being picked from TV resolutions ? im clueless)

***ToastyX*** · 09-07-2024, 08:53 PM

(09-07-2024 07:53 PM)Dump777 Wrote: ok so i added 2560 x 1440 with 144hz again manually (its already there in displayID) and now i do see pop up in nvidia control panel too but 2560 x1440 @ 160hz gave me a black screen (maybe its because of the HDR thing which i am not sure how to specifiy it should be at 4:2:2 or whatever the case) trying to see now if i can re-add 3840 x 2160 @144 hz and see if it appears)

the ones marked red show up in control panel
P.S 1440p @144hz does work with HDR 8bpc (604MHz pixel clock)
P.P.S can confirm 2160p @144hz also does not show up (not sure how is 2160p @120 NOHDR 8bpc is over 1000Mhz is working and 1440p @160hz does not (goes HDR by default), not sure how to restrict NOHDR for 1440p maybe it works then ?)

Please let me know how do i get NO HDR with 1440p so i save some bandwidth at push up to 160hz maybe ?

I have a ticket open with MSI to see what they have to say? maybe we get some more answers there but i'd would not be surprised if HDMI FRL is the issue? but could it be that these 2160p is being picked from TV resolutions ? im clueless)

You should also ask Acer because the limitation is coming from the laptop. You can turn off HDR in the Windows display settings. It's possible the monitor won't accept 2560x1440 @ 160 Hz even if it supports 160 Hz at the native resolution.

You need to look at both the color depth and the color format for the maximum pixel clock:

8 bpc/4:4:4 = 600 MHz
8 bpc/4:2:2 = 900 MHz
8 bpc/4:2:0 = 1200 MHz

10 bpc/4:4:4 = 480 MHz
10 bpc/4:2:2 = 720 MHz
10 bpc/4:2:0 = 960 MHz

YCbCr 4:2:0 only works with TV resolutions marked in the capability map, so that's where 3840x2160 @ 120 Hz is coming from.

You can specify the output color depth and color format in the NVIDIA control panel in the section where you change the resolution (it's in your first screen shot), but you shouldn't need to because it should use whatever is available.

***ToastyX*** · 09-07-2024, 08:53 PM

(09-07-2024 07:46 PM)peter4536 Wrote: i was watching itsjerians video on it and im meant to cop the timings and other things from the extention blocks. can i use the timings from detailed resolutions for them?

It shouldn't matter where the resolution is. Detailed resolutions in the main window and the CTA-861 extension block work exactly the same way.

Dump777 · 09-07-2024, 09:55 PM

(09-07-2024 08:53 PM)ToastyX Wrote:
(09-07-2024 07:53 PM)Dump777 Wrote: ok so i added 2560 x 1440 with 144hz again manually (its already there in displayID) and now i do see pop up in nvidia control panel too but 2560 x1440 @ 160hz gave me a black screen (maybe its because of the HDR thing which i am not sure how to specifiy it should be at 4:2:2 or whatever the case) trying to see now if i can re-add 3840 x 2160 @144 hz and see if it appears)

the ones marked red show up in control panel
P.S 1440p @144hz does work with HDR 8bpc (604MHz pixel clock)
P.P.S can confirm 2160p @144hz also does not show up (not sure how is 2160p @120 NOHDR 8bpc is over 1000Mhz is working and 1440p @160hz does not (goes HDR by default), not sure how to restrict NOHDR for 1440p maybe it works then ?)

Please let me know how do i get NO HDR with 1440p so i save some bandwidth at push up to 160hz maybe ?

I have a ticket open with MSI to see what they have to say? maybe we get some more answers there but i'd would not be surprised if HDMI FRL is the issue? but could it be that these 2160p is being picked from TV resolutions ? im clueless)
You should also ask Acer because the limitation is coming from the laptop. You can turn off HDR in the Windows display settings. It's possible the monitor won't accept 2560x1440 @ 160 Hz even if it supports 160 Hz at the native resolution.

You need to look at both the color depth and the color format for the maximum pixel clock:

8 bpc/4:4:4 = 600 MHz
8 bpc/4:2:2 = 900 MHz
8 bpc/4:2:0 = 1200 MHz

10 bpc/4:4:4 = 480 MHz
10 bpc/4:2:2 = 720 MHz
10 bpc/4:2:0 = 960 MHz

YCbCr 4:2:0 only works with TV resolutions marked in the capability map, so that's where 3840x2160 @ 120 Hz is coming from.

You can specify the output color depth and color format in the NVIDIA control panel in the section where you change the resolution (it's in your first screen shot), but you shouldn't need to because it should use whatever is available.

I'm not sure how much I understood how I can adjust the bpc and color depth etc but will definitely try to see what can work and what doesn't and will see if Acer can give me any answer , the preset modes don't show 160hz like you said but it 144hz does work idly. If not will just stick to 2160p 120hz and 2160p60hz or 1440p@144hz for HDR. Thanks for the great detailed info but yeah HDMI specification and terminology is a huge mess

peter4536 · 09-07-2024, 10:05 PM

(09-07-2024 07:46 PM)peter4536 Wrote:
(09-07-2024 07:44 PM)ToastyX Wrote:
(09-07-2024 07:19 PM)peter4536 Wrote: my apologies heres the right monitor
So what is the issue? I see 239.96 Hz there.

i was watching itsjerians video on it and im meant to cop the timings and other things from the extention blocks. can i use the timings from detailed resolutions for them?

okay i did it right but i have black bars

***ToastyX*** · 09-07-2024, 10:49 PM

(09-07-2024 10:05 PM)peter4536 Wrote: okay i did it right but i have black bars

CRU doesn't control scaling. That's up to the monitor if you're using display scaling or the GPU if you're using GPU scaling.

peter4536 · (Last edited: 09-07-2024, 11:20 PM by peter4536)

(09-07-2024 10:49 PM)ToastyX Wrote:
(09-07-2024 10:05 PM)peter4536 Wrote: okay i did it right but i have black bars
CRU doesn't control scaling. That's up to the monitor if you're using display scaling or the GPU if you're using GPU scaling.

I

(09-07-2024 10:50 PM)peter4536 Wrote:
(09-07-2024 10:49 PM)ToastyX Wrote:
(09-07-2024 10:05 PM)peter4536 Wrote: okay i did it right but i have black bars
CRU doesn't control scaling. That's up to the monitor if you're using display scaling or the GPU if you're using GPU scaling.

Im using display scaling maybe my monitor its curved

(09-07-2024 10:50 PM)peter4536 Wrote:
(09-07-2024 10:49 PM)ToastyX Wrote:
(09-07-2024 10:05 PM)peter4536 Wrote: okay i did it right but i have black bars
CRU doesn't control scaling. That's up to the monitor if you're using display scaling or the GPU if you're using GPU scaling.

I

(09-07-2024 10:50 PM)peter4536 Wrote:
(09-07-2024 10:49 PM)ToastyX Wrote:
(09-07-2024 10:05 PM)peter4536 Wrote: okay i did it right but i have black bars
CRU doesn't control scaling. That's up to the monitor if you're using display scaling or the GPU if you're using GPU scaling.

Im using display scaling maybe my monitor its curved

i solved my issue it was a setting on my monitor

Dump777 · 09-11-2024, 06:44 AM

(09-07-2024 08:53 PM)ToastyX Wrote:
(09-07-2024 07:53 PM)Dump777 Wrote: ok so i added 2560 x 1440 with 144hz again manually (its already there in displayID) and now i do see pop up in nvidia control panel too but 2560 x1440 @ 160hz gave me a black screen (maybe its because of the HDR thing which i am not sure how to specifiy it should be at 4:2:2 or whatever the case) trying to see now if i can re-add 3840 x 2160 @144 hz and see if it appears)

the ones marked red show up in control panel
P.S 1440p @144hz does work with HDR 8bpc (604MHz pixel clock)
P.P.S can confirm 2160p @144hz also does not show up (not sure how is 2160p @120 NOHDR 8bpc is over 1000Mhz is working and 1440p @160hz does not (goes HDR by default), not sure how to restrict NOHDR for 1440p maybe it works then ?)

Please let me know how do i get NO HDR with 1440p so i save some bandwidth at push up to 160hz maybe ?

I have a ticket open with MSI to see what they have to say? maybe we get some more answers there but i'd would not be surprised if HDMI FRL is the issue? but could it be that these 2160p is being picked from TV resolutions ? im clueless)
You should also ask Acer because the limitation is coming from the laptop. You can turn off HDR in the Windows display settings. It's possible the monitor won't accept 2560x1440 @ 160 Hz even if it supports 160 Hz at the native resolution.

You need to look at both the color depth and the color format for the maximum pixel clock:

8 bpc/4:4:4 = 600 MHz
8 bpc/4:2:2 = 900 MHz
8 bpc/4:2:0 = 1200 MHz

10 bpc/4:4:4 = 480 MHz
10 bpc/4:2:2 = 720 MHz
10 bpc/4:2:0 = 960 MHz

YCbCr 4:2:0 only works with TV resolutions marked in the capability map, so that's where 3840x2160 @ 120 Hz is coming from.

You can specify the output color depth and color format in the NVIDIA control panel in the section where you change the resolution (it's in your first screen shot), but you shouldn't need to because it should use whatever is available.

Hi so i checked with acer they say that the Port is HDMI 2.1 full 48gbps and should be working as expected. And msi(MAG274UPF E2) live support rep (monitor manufacturer does not know anything - claiming it is Upto 160hz and not guaranteed, so still waiting for their response) but I tried to play 4k HDR video using potplayer running on GPU and the monitor switches to HDR but windows still says HDR is off and Nvidia driver still says output dynamic range is limited.

so the monitor OSD says 3840 x 2160p 120hz HDR on adaptive sync enabled. So I am not really sure what this behavior is now. also 1440p @144hz gives me the option to switch from Rgb to YCbCr444 but still at 8bpc, And i can manually still switch HDR in that configuration. Will just have to wait and see what MSI says now

juanme555 · 09-11-2024, 09:40 PM

(08-30-2024 04:55 PM)ToastyX Wrote:
(08-29-2024 08:12 AM)juanme555 Wrote: Does DisplayPort have the same 25mhz minimum pixelclock threshold as HDMI?
I can't find any information on DisplayPort's minimum pixel clock. I know HDMI and DVI require at least 25 MHz. Strangely I just tested DisplayPort and HDMI with a GTX 1070 and the driver allows less than 25 MHz for both. I don't know about AMD, but I remember there being a 25 MHz limit.

Which driver version? latest or are you using older drivers?

***ToastyX*** · 09-12-2024, 01:43 AM

(09-11-2024 09:40 PM)juanme555 Wrote: Which driver version? latest or are you using older drivers?

560.70 is what I checked.