[Bug 111475] Brightness control inversion from VBT table is not taken into account in Ubuntu 18.10

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=111475

--- Comment #9 from Szymon <szymon.balcerak at ts.fujitsu.com> ---
(In reply to Jani Nikula from comment #8)
> (In reply to Szymon from comment #0)
> > • I can alter BIOS behavior if requested/needed as I'm board's BIOS
> > developer.
> 
> Please try to set bit 29 of register 0xc8250 in bios.


I already did it but there is still the problem with minimum brightness. See
point 2 of comment 5.

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