Talk:Dell XPS 15 9570

From ArchWiki
Jump to navigation Jump to search


W.r.t. backlight. My 9570 has an OLED screen. So there is no backlight.

I'm running this script to sync backlight & brightness, so that the keyboard buttons & menu options for brightness work (at least in KDE):

while read
  sleep .1
  xrandr --output eDP1 --brightness $(echo "$(xbacklight -get) / 100" | bc -l)
done < <(dbus-monitor "member=brightnessChanged")

—This unsigned comment is by Tommos0 (talk) 07:37, 7 May 2020‎ (UTC). Please sign your posts with ~~~~!

If you find this script useful, please add it to the page. -- Blackteahamburger (talk) 13:35, 27 June 2020 (UTC)

Optimus Manager

The new version 1.3 of optimus-manager do not work on my laptop, unless using the custom configuration


with scripts from Dell_XPS_15_9570#Manually_loading/unloading_NVIDIA_module paragraph.

# change PCIe power control
echo -n on > /sys/bus/pci/devices/0000\:00\:01.0/power/control
sleep 0.5
# rescan for NVIDIA card (defaults to power/control = on)
echo -n 1 > /sys/bus/pci/rescan
# someone said that modprobe nvidia is needed also to load nvidia, to check
modprobe nvidia
modprobe -r nvidia_drm
modprobe -r nvidia_uvm
modprobe -r nvidia_modeset
modprobe -r nvidia

# Change NVIDIA card power control
echo -n auto > /sys/bus/pci/devices/0000\:01\:00.0/power/control
sleep 0.5
echo -n auto > /sys/bus/pci/devices/0000\:00\:01.0/power/control

F3fora (talk) 14:06, 14 May 2020 (UTC)