Adjust the Brightness on HP Laptops on Windows 10 Using Keyboard Keys. Xrandr -output eDP-1 -brightness $PERCENTĭon't forget to do a chmod a+x /etc/acpi/xps-brightness. If hot key sequence above doesnt work due to changes or problems been made on. # 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 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 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