[Bug 67025] turning off LVDS leads to acpi_video0/brightness:0 on another console

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=67025

--- Comment #2 from Daniel Martin <consume.noise at gmail.com> ---
(In reply to comment #1)
> The backlight is independent of the pipe, so both need to be turned off. Due
> to hilarities with supporting all kernels and the kernel not always being in
> control of the backlight, we need to turn off the backlight manually.

I thought that it's not that easy.

> The question you should be asking is: why are we turning things off for a VT
> switch?

It already happens when doing a `xrandr --output LVDS1 --off`. The VT switch
itself just unveils that it has been lowered, there're no more brightness
adjustments when switching.

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