Comment # 34 on bug 106940 from Przemek

(In reply to Alex Deucher from comment #28)
> Created attachment 141123 [details] [review] [review]
> patch to test
> 
> Does this patch fix the issue?

Yes, this patch resolves "eDP display turned off on boot time" issue on my
machine, kernel - gentoo 4.18.1.
Thanks Alex,
Przemek.