[Bug 96996] [BYT][VLV] No picture on DSI display after DRM loads on Teclast X80H tablet

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96996

--- Comment #4 from Laszlo Fiat <laszlo.fiat at gmail.com> ---
Created attachment 127198
  --> https://bugs.freedesktop.org/attachment.cgi?id=127198&action=edit
dmesg of 4.6.7 with i915.fastboot=1, DSI screen works

I've compared this to the other dmesgs, and the first difference I can see that
this has: 

[    8.109949] [drm:intel_dump_pipe_config] [CRTC:26][fastset] config
ffff88007ac95800 for pipe A

Notice it has fastset in it. All other (non-working) dmesgs has modeset instead
of fastset.

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