[Bug 108826] [GLK DSI] Black screen after grub - Ubuntu 18.04 - kernel latest tip 21.11.2018

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=108826

--- Comment #155 from Stanislav Lisovskiy <stanislav.lisovskiy at intel.com> ---
(In reply to Mark Wynn Garcia from comment #153)
> Created attachment 144615 [details]
> d330 efifb pin dump
> 
> Hello Stanislav. So I found out about efifb and tried it with nomodeset and
> the screen works nicely, albeit with i915 essentially disabled and no
> backlight control. I thought the unadulterated GPIO states set by the EFI
> could be useful so I attached the pinctrl dumps.

Does suspend/resume work then? Currently, unfortunately I have another stuff
which has more priority, so I had to stop investigating for some while, however
it is very nice that you continue your research.

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