[Bug 71977] [BYT] Modesetting on Dell Venue 8 Pro (Bay Trail) produces garbled output (3.11, 3.12) or blank screen (3.13)

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=71977

--- Comment #26 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to comment #25)
> https://bugzilla.kernel.org/show_bug.cgi?id=68451 is probably relevant here:
> Ville seems to have figured out that the displays on these devices are
> actually connected via DSI.

They *may* be connected via DSI. To make sure, please provide register dump
using 'tools/quick_dump/quick_dump.py -a' from intel-gpu-tools [1].

If this one uses a DSI panel, I'm not sure how we should handle it, as there's
no VBT block for MIPI DSI:

[    8.813116] [drm:parse_mipi], No MIPI BDB found


[1] http://cgit.freedesktop.org/xorg/app/intel-gpu-tools/

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