Comment 63 for bug 307306

The g-s-d problem caused me to misinterpret a problem with dual-monitor displays. On a Macbook 1,1 whenever I plugged in a DVI-to-HDMI connector to a flatscreen television (using a TMDS-1 output on an intel card), on hotplug the machine would start to slow down. On coldplug and an unaltered xorg.conf it would attempt to load both displays but the flatscreen would start flickering on and off and eventually stop attempting to display anything. xrandr would show both active LVDS and TMDS-1 connections. Any attempt to use gnome-display-settings would only show a blank application window that could not be closed except by force quit. I had assumed that this was an issue directly with xserver-xorg-intel until I saw this bug.

As of today, killing gnome-settings-daemon immediately caused the flatscreen video to appear and slowness issues are gone. Trying to use gnome-display-settings immediately kills the display and shows the blank window again. Perhaps this points to xrandr and intel, or xrandr and dual-monitor auto-detection?

00:02.0 VGA compatible controller: Intel Corporation Mobile 945GM/GMS, 943/940GML Express Integrated Graphics Controller (rev 03)