crazy Xrandr/XOrg automatic display configuration.

Bastien Nocera bnocera at
Wed Nov 25 17:45:26 UTC 2009

On Wed, 2009-11-25 at 12:33 -0500, Jud Craft wrote:
> I assumed, via the release notes, that the new Xorg operates in
> "extend-desktop" mode by default.
> However, I'm not sure.
> When I hook up a running Fedora laptop to a projector, my desktop is
> extended.  Very nice.
> When I hook up the same projector and then -boot- my Fedora laptop, I
> am set to mirrored-mode by default at startup.
> Does anyone else have this?  Why are there two different external
> display behaviors?

The latter is probably due to your BIOS... Have you tried plugging the
external projector when you're in GRUB and not before cold starting?

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