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#1 2013-04-22 13:17:10

enferex
Member
Registered: 2013-04-22
Posts: 1

Dell xps13 backlight becomes disabled after laptop suspends

Hello,
I have a Dell XPS 13.  I can get the backlight to work if I merely do the following

echo "0" > /sys/class/backlight/intel_backlight/brightness

When my laptop suspends, I loose control of the backlight and have to repeat the command above.  I also created a service to issue that command on boot via systemd, but that has no effect until I am in X and issue a

systemctl restart backlightfix

Where backlightfix is the following, and the 'fixbacklight.sh' is the echo command above.

[Unit]
Description=Fix Backlight

[Service]
Type=oneshot
RemainAfterExit=yes
ExecStart=/usr/local/bin/fixbacklight.sh

[Install]
WantedBy=multi-user.target

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