On Sun, 15 Jan 2017 18:58:43 +0100 Martin Ueding <lists@xxxxxxxxxxxxxxxx> wrote: > On my ThinkPad X220 Tablet running Fedora 25 I cannot change the > display brightness of the internal screen using `xbacklight`. It > fails with > > No outputs have backlight property > > The combination FN+PgDn that worked in KDE no longer works. It seems > that I have no control over the backlight any more. Any way to get it > back under control? Likely you are logged into a wayland session? In that case xbacklight won't work. You could choose a Gnome on X11 session. Gnome should let you adjust the brightness however... does that slider not work? kevin
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