Hey i am using xavier agx DK , I am using a mimo um-1080ch-of which is connected through HDMI . I want to control the brightness of the screen but ddcutil doesnt find any display connected
echo 1 > /sys/kernel/debug/tegra_hdmi/ddc_power_toggle
Run this and try the ddcutil again.
Hi @WayneWWW ,
My sys/kernel/debug is an empty directory so cant really set this data
actually its a permission denied error
You need to run as a root.
Actually, if you need to follow that command to make it work… you better check your installation for rootfs and BSP…
IMO this should not be needed.
hi @WayneWWW ,
okay i will look into it.