* Chris Wilson -- Thursday 12 May 2011:
> So we think that enabling the plane at this point is masking a bug in our
> modeset, or that some side-effect of writing those registers or waiting
> for that vblank has a vital latching or delay that we have not accounted
> for.
Attached are the requested register dumps:
intel_reg_dump__nomodeset.gz
\___no kms -- no corruption
intel_reg_dump__bad.gz
\___with kms -- corrupted screen contents with staircase
shaped and horizontally stretched scan lines. Unreadable.
intel_reg_dump__lid.gz
\___after closing and reopening lid. The text is now readable,
but horizontally stretched. It looks like there's a dark
pixel between any pair of legitimate font pixels.
intel_reg_dump__x11.gz
\___after starting x11. Now both the x11 screen and virtual
terminals look right.
(BTW: there's also still the problem that the backlight remains off
until I press the "screen darker" key. Maybe this problem is related?
https://bugzilla.kernel.org/show_bug.cgi?id=31522).
m.
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