[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 #40 from Jani Nikula <jani.nikula at intel.com> ---
(In reply to comment #39)
> So...do we still need this open for anything? I don't think I'm carrying
> anything in Fedlet for this specific bug ATM, and we're covering the
> 'display detection / mode selection doesn't work because DSI' stuff in
> https://bugs.freedesktop.org/show_bug.cgi?id=74657 . I think we can close
> this one now. Let me know if there's a reason to keep it open.
> 
> Is the warning worth reporting separately?

I'm not sure. Either it's a PEBKAC/feature or a bug.

I think it's caused by you omitting the connector name in your video=
parameter, which leads to connector ->fill_modes() callback for display port,
which in turn fails because there is no monitor in the DP.

Please try with video=VGA-1:800x1280 at 75e.

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