bad panel power sequencing delays, disabling panel

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On 16 October 2012 22:43, Daniel Vetter <daniel at ffwll.ch> wrote:
> On Tue, Oct 16, 2012 at 3:26 PM, Daniel J Blueman <daniel at quora.org> wrote:
>> On my Macbook Retina 2012, after a recent firmware update, i915 fails
>> to use the eDP-1 panel [1], which goes blank when switched to. Nouveau
>> works correctly though [2]. I see this behaviour on 3.6-rc to 3.7-rc1.
>
> I'm working on this, since when I plug in a 2nd screen in my own edp
> machine, the bios doesn't light up the internal panel and our code
> can't light it up, too. Unfortunately progress is slow, but you can
> try my current wip state at
>
> http://cgit.freedesktop.org/~danvet/drm/log/?h=for-pzanoni
>
> Please attach dmesg with drm.debug=0xe if you try this kernel.
> Backlight works now for me, but I still have issues with edp link
> training here.

Thanks Daniel; I'm happy to collect local information/debug etc, sure.

Alas, it looks like that repo is in an unexpected state:

$ git clone git://people.freedesktop.org/~danvet/drm
Cloning into 'drm'...
remote: Counting objects: 2631581, done.
remote: Compressing objects: 100% (395986/395986), done.
remote: Total 2631581 (delta 2211094), reused 2630318 (delta 2209899)
Receiving objects: 100% (2631581/2631581), 615.36 MiB | 1.77 MiB/s, done.
Resolving deltas: 100% (2211094/2211094), done.
warning: remote HEAD refers to nonexistent ref, unable to checkout.

$ cd drm && $ git branch
$

When it's in shape, I can try again.

Daniel
-- 
Daniel J Blueman


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