[Bug 398026] Re: [GM45] Default 60Hz display mode drives LVDS incorrectly

[Geir Ove Myhr]

Thank you for reporting this bug using the ubuntu-bug command. The
information included helps us analyze this bug report better.

To make the analysis easier, could you remove the file
.config/monitors.xml in your home directory? This is the file where
custom mode setting for your user is stored. I don't see anything wrong
with it, but it makes it easier to not have to take that file into
account. Then I would like the Xorg.0.log produced when you log in next
time without monitors.xml.

You mention that this happens with the latest version of xserver-xorg-
video-intel (2:2.7.99.901+git20090702.74227141-0ubuntu1). Does that mean
that it doesn't happen with the previous version?

Did you also upgrade the linux kernel recently? You have
2.6.31-2-generic and I seem to remember that the default was
2.6.31-1-generic until recently. Could you try to downgrade that as well
to see if it changes anything (if you have an installed system, you
probably have the old versions available in your boot menu)? The reason
I'm asking is that the actual mode setting is now handled in the kernel
(c.f. https://lists.ubuntu.com/archives/ubuntu-x/2009-June/000578.html)
and if this problem was just introduced, it could have been through a
kernel update.

A piece of information which may be useful to the developers is whether
this also happens without kernel mode setting. To disable kernel mode
setting add the boot parameter i915.modeset=0 to the kernel boot
options. An Xorg.0.log and `xrandr --verbose` output from this case
might be useful as well.

** Tags added: gm45 karmic resolution

-- 
[GM45] Default 60Hz display mode drives LVDS incorrectly
https://bugs.launchpad.net/bugs/398026
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