[Bug 65995] [HSW mobile Acer notebook] eDP can't light up in boot to text mode

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=65995

--- Comment #19 from shui yangwei <yangweix.shui at intel.com> ---
(In reply to comment #18)
> (In reply to comment #0)
> > Description:
> > ---------------------
> > I have tried many kernels, when machine boot up, eDP can display well in
> > BIOS, but failed to display after system finished initialized. If I removed
> > i915, eDP can display again.
> > 
> > The followed phenomenon:
> > 1. eDP failed to display if boot to level 3.
> > 2. eDP light up again by start X(but it need to connect another display
> > pipe).
> 
> The last time I saw a problem with such description on my machine, it was a
> Backlight bug.
> 
> What if you boot to level 3, then start X, then SSH to the machine and
> "DISPLAY=:0 xrandr --output eDP1 --set BACKLIGHT 15"?

I tried the steps as you said, and eDP is also unlighted.

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