[Bug 91845] [HSW]i915 does 2s long DP-link-reset (backlight off) during modeset instead of re-using SimpleFB, stacktrace with i915.fastboot=1

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91845

--- Comment #19 from Ville Syrjala <ville.syrjala at linux.intel.com> ---
(In reply to o.freyermuth from comment #18)
> I understand, yes, that matches observation. 
> Still: Why is the panel toggled at all? 
> Shouldn't it be possible to just take over the efifb? 
> It seems a full reinitialization is taking place, and the panel toggling is
> just part of that.

I suppose it's the lack of fastboot. That thing is still not entirely
implemented. You can try it with the modparam but not really guaranteed to do
the right thing.

-- 
You are receiving this mail because:
You are the assignee for the bug.
You are on the CC list for the bug.
You are the QA Contact for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20181022/f573ccfc/attachment.html>