Failed to start Screen Backlight Brightness

Asked by James Gray

systemd-backlight@backlight:acpi_video0.service - Load/Save Screen Backlight Brightness of backlight:acpi_video0
   Loaded: loaded (/lib/systemd/system/systemd-backlight@.service; static; vendor preset: enabled)
   Active: failed (Result: exit-code) since Fri 2018-12-14 09:13:50 EST; 4min 1s ago
     Docs: man:systemd-backlight@.service(8)
  Process: 545 ExecStart=/lib/systemd/systemd-backlight load backlight:acpi_video0 (code=exited, status=1/FAILURE)
 Main PID: 545 (code=exited, status=1/FAILURE)

Dec 14 09:13:50 jimdell-Inspiron-15-3565 systemd[1]: Starting Load/Save Screen Backlight Brightness of backlight:acpi_video0...
Dec 14 09:13:50 jimdell-Inspiron-15-3565 systemd-backlight[545]: Failed to get backlight or LED device 'backlight:acpi_video0': No such devic
Dec 14 09:13:50 jimdell-Inspiron-15-3565 systemd[1]: systemd-backlight@backlight:acpi_video0.service: Main process exited, code=exited, statu
Dec 14 09:13:50 jimdell-Inspiron-15-3565 systemd[1]: systemd-backlight@backlight:acpi_video0.service: Failed with result 'exit-code'.
Dec 14 09:13:50 jimdell-Inspiron-15-3565 systemd[1]: Failed to start Load/Save Screen Backlight Brightness of backlight:acpi_video0.

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Launchpad Janitor (janitor) said :
#1

This question was expired because it remained in the 'Open' state without activity for the last 15 days.