Bug#942219: systemd-backlight at backlight:dell_backlight.service fails at boot for dell d600, d620, d820

[Michael Biebl]

Am 14.10.19 um 23:13 schrieb Rado S:
> dell_backlight: Failed to write system 'brightness' attribute: No such device or address

Looks like a kernel or firmware/bios problem to me.

Since you didn't use reportbug there is no information about your used
kernel.
-- 
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?

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