[Bug 93915] [BXT-P/ APL] xrandr shows DP panel as disconnect after resume from S3

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=93915

--- Comment #7 from Imre Deak <imre.deak at intel.com> ---
(In reply to Matt Roper from comment #6)
> (In reply to cprigent from comment #5)
> > Matt,
> > Could you add a comment when the patch is integrated. Then we will check
> > again.
> 
> This patch probably won't be accepted upstream since the review feedback was
> that we should read the value from VBT rather than saving/restoring it.  I
> believe someone from VPG (Sivakumar?) is working on some patches for that.
> 
> The VBT solution won't work on embedded platforms that lack any kind of
> firmware that can provide a VBT, but it should work in most other cases.

Would it be possible to read out the register during booting and program it
after resume during hpd setup time accordingly? That could be still overwritten
 by any VBT settings.

-- 
You are receiving this mail because:
You are the QA Contact for the bug.
You are on the CC list for the bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/intel-gfx-bugs/attachments/20160405/a3715e24/attachment.html>