[Bug 96450] Modesetting causes the screen to black out forever

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=96450

--- Comment #19 from Philip Fackler <philip.fackler at gmail.com> ---
Created attachment 126916
  --> https://bugs.freedesktop.org/attachment.cgi?id=126916&action=edit
kernel messages for 4.3.3 kernel with late KMS

The attached is the output for the kernel version that works well (perhaps it
will give some insight, probably not). When I do the same thing to run your 4.7
kernel, none of the [drm] messages show up. I've tried multiple combinations of
kernel parameters to try to log everything possible, but I can't figure out how
to make the drm messages show up. And with early KMS, I get no log at all! It
doesn't even exist. Even though I can see output on screen before the screen
goes blank, as far as journald is concerned that boot never happened.

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