ubuntu-x-swat team mailing list archive

[Chris Halse Rogers <chalserogers@xxxxxxxxx>]

> 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.
Attached.  However, this corruption occurs at GDM time, before my
monitors.xml is read.

> 
> 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?
Correct.  This behaviour appeared with the latest intel update.

> 
> 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.
While there have been kernel updates, I didn't think the introduction of
this problem corresponded with an update.  Indeed, I've just checked and
this behaviour occurs with 2.6.31-1-generic, too.

> 
> 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.
This does not appear with KMS disabled.  I'll get those logs.


** Attachment added: "Xorg.0.log"
   http://launchpadlibrarian.net/28904468/Xorg.0.log

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