Public bug reported:
My brightness is locked in the max. I can't change it
I already change the grub config, downgrade my kernel and use other software
but it didn't work at all
I have Thinkpad X1 Yoga, a dual boot system with Windows 11 / Ubuntu 26.04.1
The brightness actually work on my windows but it didn't here.
FYI : I just upgraded my Ubuntu 24.04 to 26.06 recently, and the
brightness was already locked in the max when use the 24.04, so when I
installed the 24.04, it wasn't already working
I didn't find any solutions so please consider my bugs.
My kernel is actually Linux 7.0.0-38-generic
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2169585
Title:
Brightness locked at 100% in Ubuntu 26.04.1
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