Backlight controls not working after external display disconnect

Bug #1318684 reported by DooMMasteR
6
This bug affects 1 person
Affects Status Importance Assigned to Milestone
Ubuntu GNOME
New
Undecided
Unassigned

Bug Description

Hi there, I have a Clevo W740SU and my back-light hot-keys stop working on Ubuntu Gnome 14.04 whenever I disconnect an external display.

Steps to recreate the Bug:
Boot >> back-light-controls work fine
Attach external display >> still all fine
Disconnect display >> keys stop working

restarting X (gdm) fixes the problem and all is fine again until the described process is repeated...

I can however still control the back-light via sysfs and the controls are also still appearing, but the actual back-light remains unchanged

DooMMasteR (winrootkit)
description: updated
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