[Powerdevil] [Bug 352442] extremely slow response on brightness hotkeys

[Igor Poboiko]

https://bugs.kde.org/show_bug.cgi?id=352442

--- Comment #10 from Igor Poboiko <igor.poboiko at gmail.com> ---
(In reply to Kevin Funk from comment #9)
> @Igor: Do you have a link to the upstream issue? Is there a bug report at
> all?

I didn't report anything myself, and not sure if there is relevant bug report
there. 

Although I've seen almost same problems on various forums
(https://ask.fedoraproject.org/en/question/69033/slow-response-on-brightness-control-lenovo-u330p/,
http://ubuntuforums.org/showthread.php?t=2208278), some old bugs in launchpad
and kernel bugzilla
(https://github.com/linuxmint/cinnamon-settings-daemon/issues/17,
https://bugs.launchpad.net/ubuntu/+source/gnome-power-manager/+bug/847001,
https://bugzilla.kernel.org/show_bug.cgi?id=63931); bust most of them are
market as closed. But there are also a lot of workarounds (various kernel
options, X configurations, kernel, etc), but neither of them worked for me.

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