https://bugs.kde.org/show_bug.cgi?id=448459
Bug ID: 448459
Summary: [Usability] Logarithmic brightness scaling
Product: Powerdevil
Version: 5.23.5
Platform: Neon Packages
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: ericedlund2...@gmail.com
Target Milestone: ---
SUMMARY
The brightness keys right now step in linear intervals (as far as I can tell).
This makes adjustment steps about the right size in the middle of the scale,
but not on the lower end. Humans actually perceive brightness logarithmically,
so the same amount of change in brightness appears to be much larger in lower
levels of brightness than on higher ones. For people who typically keep their
brightness pretty low, or those who use their computer in dark places, the last
brightness step jumps from too bright to off.
Other platforms like android have had this feature, and although I don't have a
mac or pc in front of me, I can't imagine they don't use logarithmic
brightness. This is a very basic usability feature that almost every corporate
operating system employs and plasma is behind because it doesn't have it.
Even right now, with a window behind me, 5% brightness is too dark and 10% is
too bright and it's silly that I have to settle for one extreme while the
people sitting next to me on their macs don't. I'm marking this bug's severity
as "normal" because this is pretty unarguably a problem.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Neon 5.23 User Edition
(available in About System)
KDE Plasma Version: 5.23.5
KDE Frameworks Version: 5.89.0
Qt Version: 5.15.3
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