I have a monitor which my laptop can connect to at 3840 x 2160 @ 60hz no problem.
When I connect the Nvidia Nano devkit to the same monitor I cannot set the 3840 x 2160 @ 60 display mode.
when I run xrandr it says the monitor only supports up to 30hz. I know this is not true because it is a brand new 4k60 monitor and my laptop can run this resolution and refresh rate on the same monitor with no issues.
So I have been trying to work out how to resolve this issue. This is what I have tried so far:
First of all I set the option in /etc/X11/xorg.conf to not use EDID from the monitor, like this:
Section “Device”
Identifier “Tegra0”
Driver “nvidia”
Option “AllowEmptyInitialConfiguration” “true”
Option “UseEDID” “FALSE”
EndSection
then from my SSH terminal I run the following command:
export DISPLAY=:0
gtf 3840 2160 60
this gives me the following output:
3840x2160 @ 60.00 Hz (GTF) hsync: 134.10 kHz; pclk: 712.34 MHz
Modeline “3840x2160_60.00” 712.34 3840 4152 4576 5312 2160 2161 2164 2235 -HSync +Vsync
next I run the following command:
xrandr --newmode “3840x2160_60.00” 712.34 3840 4152 4576 5312 2160 2161 2164 2235 -HSync +Vsync
then I run this command:
xrandr --addmode HDMI-0 “3840x2160_60.00”
which results in this output:
X Error of failed request: BadMatch (invalid parameter attributes)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 18 (RRAddOutputMode)
Serial number of failed request: 25
Current serial number in output stream: 26
I am testing with JetPack 4.3 on an Nvidia Nano devkit
Can anyone advise on how to achieve the 2160p60 resolution and refresh rate please?