[BUG] Can't adjust brightness on lock screen by default - getting locked on a black screen

[H7ioo]

Describe the bug

By default, you can’t change the screen brightness from the lock screen.
If you dim the screen all the way and then reach the lock screen, the display becomes completely dark, leaving you unable to see anything or adjust the brightness.

Steps to reproduce

1. Login
2. Set the brightness to 0%
3. Launch the lock screen
4. Completly black lock screen

Expected behavior

Brightness should be adjustable on lockscreen OR there should be a fallback if the brightness is 0%.

Screenshots

No response

Distribution

Other (please specify below)

If Other, specify

Fedora 43

Additional context

Suggestions:

• Allow the brightness key to be pressed by changing it from bind to bindl
• A fallback brightness if the brightness is 0%

Context:

• Using a laptop and adjusting brightness through F1 and F2 keys.

Code of Conduct

• I agree to follow this project's Code of Conduct

[H7ioo]

The same goes for SDDM.

[mylinuxforwork]

I totally agree. The brightness should not go below 20%. I will check what's possible.

[mylinuxforwork]

I have updated the Rolling Release to 2.12.0. The new Sidebar app includes a new brightness slider. Values under 10% aren't possible anymore.