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Lubuntu 22.04.2 LTS (Jammy Jellyfish) shortcut keys are not working for brightness

br flag

The shortcut keys for brightness worked great with Lubuntu 20.04.5 LTS (Focal Fossa) but do not work with Lubuntu 22.04.2 LTS (Jammy Jellyfish). I use F1 (dimmer) and F2 (brighter).

I am disappointed as my eyes need the ability to modify brightness on the fly.

Any solutions that are not too complicated? For example, I could edit a config file... stuff like that.

guiverc avatar
cn flag
Lubuntu's manual is here (https://manual.lubuntu.me/lts/F/keyboard_shortcuts.html) but as F1 & F2 are program specific function keys, they are not directly used (*not without other keys being involved as per manual*). Different devices can respond differently to other devices though.
earthpages avatar
br flag
To clarify, I assigned F1 and F2 in the Global Actions Manager (Preferences >> LXQt Settings >> Shortcut Keys) for both versions of Lubuntu. The latest LTS just doesn't work while the former LTS does. A bit of a mystery.
kanehekili avatar
zw flag
Do the actions work, but are not triggered when pressing the function keys?
earthpages avatar
br flag
When I reassign keys to raise volume, lower volume and mute, they all work on both the older and newer versions of Lubuntu. But when I reassign keys for brightness on Jammy Jellyfish, it appears to have received the instructions but does not work when I press the keys---that is, when I am using my PC and want to adjust the brightness with the keyboard shortcuts.
earthpages avatar
br flag
Now it seems to be working, with smaller increments than 20.04.5 and less range. But working. I think maybe 22.04.2 depends on how you set brightness with sliders and uses that as a baseline while 20.04.5 gives a full range regardless. Seems to be a difference but I need to study it more, and on different machines.
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