[Libreboot] Possible bug

[potato]

I think I might have found a bug on the latest release of Libreboot 
(20160818~20160907).

For some reason the left side of the screen gets really dark compared to 
the right side of the screen when the bright is lowered. If the screen 
bright is on the max, that does not happen. On the 20150518 version of 
Libreboot this error does not happen.

The error happen on the X200, using the vesa framebuffer.

(sorry if my english sounds a little weird)

Potato