--- Comment #2 from Steven Stewart-Gallus <> ---
Changing the brightness to zero using the sysfs interface does not turn off the
display (you can still very slightly see the GUI on the laptop screen) and the
brightness can be set up and down again (using the sysfs interface) (bypassing
my desktop stack and using sysf directly seems to screw with the desktop and
make it stop working.) Is there a sysfs interface way to actually turn off the
screen and not just the backlight?

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