backlight

Hello, I am running FreeBSD 13.2 on Thinkpad T430s with i3wm. The function keys for regulating brightness, Fn+F8 and Fn+F9 (XF86MonBrightnessDown and Up), are working out-of-the-box (lucky me). However, I would like to find out what command exactly they are sending to the system when pressed...

Updated: solved thanks to the info at this message I've been messing around with this laptop (Thinkpad E495) and FreeBSD since last year. While using the 13.0-CURRENT version until march, I was able to change the screen brightness via: $ doas sysctl...

Exploring a new Dell Precision 7540 with Nvidia Quadro RTX3000: I can't find any way to control the display backlight brightness other that by running x11/nvidia-settings: nvidia-settings -a BacklightBrightness=x # x = 0...100This is good for desktop use with Xorg, but doesn't work for...

I have recently been trying to get FreeBSD setup on my HP Pavilion 15-p051us laptop with an AMD A10-5745M APU. Everything is working except for backlight control via the acpi_video module. I found the HP Envy Touchsmart page (https://wiki.freebsd.org/Laptops/HP_Envy_TouchSmart_m6), which has the...

Simple backlight control script for Intel GMA 500/3600. Work under the superuser. #!/bin/sh intel_bl_setpci="pciconf -w" intel_bl_getpci="pciconf -r" INTEL_BL_DEVICE="pci0:0:2:0" INTEL_BL_REGISTER="0xf4" INTEL_BL_MAX_VALUE="255" INTEL_BL_COMMAND="$1" INTEL_BL_SET_VALUE="$2" [ "`id -u`" -eq...

Hello friends of BSD, recently, I've been struggling with backlight after X server starts on ASUS laptop. Everything is normally seen in TTY, but after executed startx or automatic slim login manager enabled boot in Xserver dims backlight to zero. For this purpose, I've installed...