[Bug 82833] backlight-helper gets upset

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=82833

--- Comment #15 from Chris Wilson <chris at chris-wilson.co.uk> ---
It's an issue with the Arch configuration: they have disabled root privileges
for Xorg which prevents us from changing the backlight value directly, and
instead have a setuid helper with which we communicate to do so. However, that
helper is not installed on your system and so it fails. The crash itself is
fixed upstream, which should now be available in the 2.99.916 package.

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