11-17-2020, 08:50 PM
With the default Manjaro install the PBP now comes with, "brightnessctl" isn't installed.
What was causing the dim screen for me was systemd-brightness. It's a service that runs on startup and shutdown to restore and save the screen brightness. In my case the save brightness was 0, so this happened:
The save valued is 0, which is too low, so it raises it to 5%. Which is also really low. The saved value can be changed by putting a new value in "/var/lib/systemd/backlight/platform-edp-backlight:backlight:edp-backlight".
I'm not sure how the value of 0 got saved in the first place though. I wonder if the process was something like: close lib, screen turns off, battery low, shutdown, save brightness since screen is off.
What was causing the dim screen for me was systemd-brightness. It's a service that runs on startup and shutdown to restore and save the screen brightness. In my case the save brightness was 0, so this happened:
Quote:[root@pine systemd]# systemctl status systemd-backlight@backlight:edp-backlight.service
● systemd-backlight@backlight:edp-backlight.service - Load/Save Screen Backlight Brightness of backlight:edp-backlight
Loaded: loaded (/usr/lib/systemd/system/systemd-backlight@.service; static)
Active: active (exited) since Tue 2020-11-17 15:16:57 PST; 3h 12min ago
Docs: man:systemd-backlight@.service(8)
Main PID: 614 (code=exited, status=0/SUCCESS)
Tasks: 0 (limit: 4462)
Memory: 0B
CGroup: /system.slice/system-systemd\x2dbacklight.slice/systemd-backlight@backlight:edp-backlight.service
Nov 17 15:16:57 pine systemd[1]: Starting Load/Save Screen Backlight Brightness of backlight:edp-backlight...
Nov 17 15:16:57 pine systemd-backlight[614]: edp-backlight: Saved brightness 0 too low; increasing to 204.
Nov 17 15:16:57 pine systemd[1]: Finished Load/Save Screen Backlight Brightness of backlight:edp-backlight.
The save valued is 0, which is too low, so it raises it to 5%. Which is also really low. The saved value can be changed by putting a new value in "/var/lib/systemd/backlight/platform-edp-backlight:backlight:edp-backlight".
I'm not sure how the value of 0 got saved in the first place though. I wonder if the process was something like: close lib, screen turns off, battery low, shutdown, save brightness since screen is off.
