Created attachment 1241005 [details]
Description of problem:
Usually when pressing Super+L or idling, the session locks and the monitor turns off. But for me, it goes into a black screen with the backlight still on.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
1. Log in as GNOME and not GNOME on Xorg
2. Idle the computer or press Super+L
3. Check to see if the monitor turns off
Monitor is on as well as backlight
Interestingly enough, if I install the proprietary nvidia drivers, this behavior also applies to Xorg. The backlight control also breaks in that situation.
Hardware is CLEVO P870M, Nvidia GTX 980.
acpidump is also attached. I'm not really sure which information to give. This is probably a kernel bug though.
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