Intel i915 PWM backlight flicker frequency adjustment

[hhartzer]

It sounds like it's possible to adjust the PWM flicker frequency on Intel i915. On Linux, anyway.

You need some intel_reg command from a "intel-gpu-tools" package: https://wiki.archlinux.org/title/Backlight#Backlight_PWM_modulation_frequency_.28Intel_i915_only.29

Eliminate backlight flicker with Intel i915 | 127.0.0.1

127001.me

Is there something like this on FreeBSD? I see the backlight command. I believe it came partly from this: https://github.com/FreeBSDDesktop/intel_backlight_fbsd

For those curious about the topic: https://www.retropcmania.com/2012/11/pulse-width-modulation-in-lcd.html

Thank you!