Xrandr -output eDP-1 -brightness $PERCENTĭon't forget to do a chmod a+x /etc/acpi/xps-brightness. # Where the backlight brightness is storedīR_DIR='/sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-eDP-1/intel_backlight/'Įxport XAUTHORITY=/home/user/.Xauthority # CHANGE 'user' TO YOUR USERĮcho 'xrandr -output eDP-1 -brightness $PERCENT' > /tmp/xps-brightness.log Adjust the Brightness on HP Laptops on Windows 10 Using Keyboard Keys. Nuber two is /etc/acpi/events/xps-brightness-down: event=video/brightnessdown BRTDN 00000087Īnd then the main script /etc/acpi/xps-brightness.sh: #!/bin/sh If hot key sequence above doesnt work due to changes or problems been made on.

Adjust the brightness on your Windows 10 computer to see if it works now. Yesterday my screen suddenly went dim, I tried to increase the brightness and it says is in 100 but it doesnt change to higher or lower when i increase or decrease the brightness settings. The first one is /etc/acpi/events/xps-brightness-up: event=video/brightnessup BRTUP 00000086 Brightness wont adjust on windows 10 I have a Lenovo Ideapad 500 touch and I updated to windows 10 two days ago. This is what the modified solution looks like for the XPS 15, using similar three files. The only thing I had to change was to subtract/add 6000 instead of the 71 in the script.

Ivo's ( ) solution at Lenovo ThinkPad X1 Yoga OLED Brightness for a Yoga laptop also works for the Dell XPS 15-9570.

Brightness on laptop won t change