ubuntu-x-swat team mailing list archive

[Chris Halse Rogers <raof@xxxxxxxxxx>]

Ah, ok.  Those logs make this much more obvious.  Nouveau is detecting
the corrupted EDID, deciding that it can't drive your laptop display,
and disabling it.  Then X comes along, tries to load, the nouveau X
component finds that there are no displays available and bails.

It would be nice if you could add the problematic EDID to the bug - to
do this, just boot without modeset=0, switch to a vt, and you should
have a /sys/class/drm/ directory, which hopefully will contain a
subdirectory called something like “card0-LVDS-1”.  Copy the “edid” file
from there, and attach it to the bug.

I'll then forward this upstream.  The other thing that might be useful
is to get an mmiotrace of the nvidia proprietary driver successfully
booting your card.  That's a bit more involved, and requires some kernel
support that's not yet enabled in the default kernel.  I'm going to be
writing up step-by-step instructions to do this, so if upstream wants a
mmiotrace I'll have some documentation to point you to.

-- 
Screen corruption when using KMS. Acer Extensa 5635G / Nvidia G 105M
https://bugs.launchpad.net/bugs/540632
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