Our customer Orin nx carrier board which uses HDMI to display. We have some compatibility issues with some monitors. Is it possible to limit the HDMI resolution under 3840x2160/60 Hz ? For example , if a monitor supports 120Hz and 144Hz for 3840x2160. How to set Orin nx not support these two frequencies, and limit it support 60 Hz for 3840x2160 only?

[image] carolyuu: tvservice 1.The tvservice seems used on Raspberry, how could I install the tvervice on Orin nx device ? 2.I add the “video=HDMI-A-1:3840x2160@60” to the /boot/extlinux/extlinux.conf, but display setting does not change to 3840x2160@60 after reboot. What are the procedures to add the video setting to kernel parameter ? 3.Which device tree file should I modify for the hdmi configuration for Orin Nx 16G ?

HI, Ideally we don’t suggest to force any frequency here because a mode should be picked after reading a EDID. For example, if you pick a 1080p mode but the actual monitor does not support it, then it would lead to problem. Orin NX does not support 4Kp120 since it is beyond HDMI 2.0. If the TV has 4Kp60 and 4Kp120, we would expect 4Kp60 to be picked.

Does Orin nx and Orin nano just support to HDMI 2.0 ? From the page 1 of Datasheet(Jetson_Orin_NX_DS-10712-001_v1.0.pdf), display controller supports to HDMI2.1 [spec] Is there any way to disalbe some configurations of EDID ? For example, if monitor supports 4Kp120 and p144, how to let user can’t select these two frequencies since our carrier board does not support it ?

Orin AGX/NX/Nano HDMI only support to 2.0 because of software limitation. Please always read software feature in the developer guide instead of datasheet. Are you sure you really see 4k@120 fps in the xrandr when you use such monitor?

From the Developer Guide of R36.4.4, HDMI supports 2.0 only. Jetson Orin Series — NVIDIA Jetson Linux Developer Guide When I use Orin nx 16G on Xavier nx carrier board, and flash JetPack_6.2.1_Linux_JETSON_ORIN_NX_TARGETS(R36.4.4) with p3509-a02-p3767-0000.conf. I can see the 3860x2160p120 with or without VRR by using Corsair 32UHD144 monitor. When I set to 120 with VRR, the analyzer gets the freqency is 48 which is the lowest of the VRR. [1_4KP120_with_VRR] When I set to 120 without VRR, the analyzer gets the freqency is 120. [2_4KP120_wo_VRR] I can see the 120 and 144 of the frequency in the Ubuntu display setting. Since the SW limitation is HDMI 2.0 of Orin NX, is there any way to let ubuntu not list 120 and 144 in display of Settings app ?

I remember a old post as this. Could you try it? [image] Is it possible to limit HDMI2.1 to 2.0? Jetson Orin NX Hi, It does not have side effect at this moment. The you need to adjust this max rate in bpmp dtb to 600Mhz. And bpmp dtb is not in public source so you need to convert it from binary by using dtc tool. clock@nvdisplay_disp { clk-id = ; max-rate-maxn = ; }; clock@vpll0 { clk-id = ; max-rate-maxn = ; }; clock@vpll1 { clk-id = <TEG…

Hi @james_cheng1 Just curious, could you share us the xorg log or xrndr instead of the GUI?

I change the max-rate-maxn of clock@nvdisplay_disp to 1191000000, then I get a additional 119 Hz from display setting. [119Hz] log.zip (22.2 KB)

Hi James, I just checked. You don’t need to change anything for rel-36.4.4. Everything is already there. We need to do some further check for this issue.

Hi @james_cheng1 Could you share the xorg log and xrandr based on original image (without any BPMP change)?

How to set specific HDMI frequency and resolution before login

Robotics & Edge Computing Jetson Systems Jetson Orin NX

WayneWWW August 13, 2025, 1:34pm 9

I remember a old post as this. Could you try it?

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How to set specific HDMI frequency and resolution before login

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