https://bugs.kde.org/show_bug.cgi?id=489320
--- Comment #10 from Zamundaaa <xaver.h...@gmail.com> --- That "darkening every pixel" is software brightness being applied, this happens when hardware brightness control has never been detected for a screen. So either powerdevil never offers a brightness device for the second display, or KWin never assigns it to the correct display internally. Can you run powerdevil with WAYLAND_DEBUG=1, and post the output of that here? Should work like this: > killall org_kde_powerdevil; WAYLAND_DEBUG=1 > /usr/lib64/libexec/org_kde_powerdevil -- You are receiving this mail because: You are watching all bug changes.