On Mon, Apr 04, 2022 at 03:42:46PM -0400, Juan R.D. Silva wrote: [...]
> Looks that I failed to deliver the point in my post. > > All 4 steps are correct. And I most certainly can happily change the value > in the /sys/class/backlight/acpi_video0/brightness file to whatever I want. > The problem is it does not have any effect on the actual/physical screen > brightness. Hm. That seems an important clue. > The change of the value in the /sys/class/backlight/acpi_video0/brightness > only results in the slider in Brightness settings and other related GUI > controls being carefully and precisely re-positioned to reflect the new > value in /sys/class/backlight/acpi_video0/brightness. > > This is why there was a rant. Looks that like in GNOME moving the sliders > around is the only goal. Well, that's been achieved. Greetings to the devs. > :-) Sorry for another one. :-) Guessing from the clues you give here, I'd venture the hypothesis that Gnome isn't to blame this time. Most probably it is some lower level problem, like a graphics card driver bug/missing frature. Cheers -- t
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