[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 #140 from Microtech <fabio.rifici at microtechsrl.com> ---
(In reply to Stanislav Lisovskiy from comment #139)
> Also I found that restarting the device without i915 driver and then loading
> it manually still works, even without those pins.
> However if I do suspend even without i915, can't get anything except
> backlight afterwards. Also if I disable suspend in BIOS it works fine then.
> 
> To me it looks like there is something either related to acpi management or
> panel initialization sequence not mentioned in vbt is missing here.

We asked to the panel supplier the exact description of DCS Command. I hope to
reply you soon. However, in your opinion which is the solution?

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