Excellent news that the gnome-desktop changed fixed the problems on
radeonhd.  I'll forward the fix upstream.

I'd like to hear from the folks on intel with this problem, to see if it
solves the issue there as well.

Rick, Xinerama and Xrandr are sort of ying and yang; Xinerama being the
old, deprecated method and Xrandr the future.  These days only a few
drivers (such as the proprietary ones) still support Xinerama.  Screens
and Graphics (aka displayconfig-gtk) is a Xinerama-based tool; it was
developed back before Xrandr was very widely available.  These days with
so many drivers now using Xrandr, this has rendered displayconfig-gtk
obsolete.  Thus these efforts into switching over to this new Xrandr
config tool.

So the plan is to drop displayconfig-gtk.  For all the Xrandr based
drivers, this new tool will be better (the only remaining missing
capability is driver switching, but I guess we can go back to xorg.conf
editing for that for now).  For proprietary drivers, nvidia and fglrx
both include their own config update tools.  The remaining non-Xrandr
drivers are much less commonly used; often they're deployed using static
xorg.conf's anyway.

Thanks for the swift testing guys.  Seb128, based on rbmorse's tests,
the g-s-d change should be uploaded as well.   It just adds checks that
xrandr 1.2 is present (as jcristau suggested yesterday), so should be
very safe and regression free.

-- 
gnome-settings-daemon crashed with SIGSEGV
https://bugs.launchpad.net/bugs/197153
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