[Bug 415023] Re: brightness is broken on MSI WIND U100

[crepi]

In comment 80, two bugs were isolated. The "workaround" for the second part was nomodeset.
If you use it, the workaround for the 1st part is xrandr --output LVDS --set BACKLIGHT_CONTROL native
and you get back the 8 levels of backlight control.
It may help for the second part too except that, because of bug 428054 (it is a duplicate but I am not sure that the main bug looks for the same problem), you cannot set BACKLIGHT_CONTROL on LVDS1 to native (in fact disable software BACKLIGHT_CONTROL if I understand).
If it is so, it may help to raise 397617 bug status from low to at least medium.

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brightness is broken on MSI WIND U100
https://bugs.launchpad.net/bugs/415023
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