Le 07/10/2014 21:33, Erwan David a écrit : > I get an error at boot, afterwards I see it is : > systemctl --failed > UNIT LOAD ACTIVE SUB > DESCRIPTION > ● systemd-backlight@backlight:acpi_video0.service loaded failed failed > Load/Save Screen Backlight Brightness of backlight:acpi_video0 > > What should I do ? > > I forgot to say that once booted I can tune the screen brightness with the keyboard keys (on a Lenovo T530)