Just upgraded from 20.04 to 22.04 (too bad it had to go thru 21.10 and then to 22.04), but after upgrade was completed, after it goes to sleep (close the lid or just inactivity), it wakes up dimmed.
When pressing the bar properties (top right, by the battery sign ), the display brightness slide is in the same place it was left (quite close to 100%), when actual display is about 60-70%. When touching its slider, it goes back to its expected value.
I'm using an i7 ThinkPad.
Appreciate any help
Guy