Comment 31 for bug 943263

I tried the new Ubuntu 12.04 LTS with kernel 3.4-rc5 with different monitor-configurations. When only a VGA connected monitor is used, everything works fine. The monitor doesn't go to power save after booting. This kernel seems to solve the problem of this bugreport.

But when I connect two monitors, one on the HDMI- and one on the VGA-Interface at boottime only the monitor connected to HDMI works. I can't activate the monitor on VGA-interface. The monitor an VGA-monitor stays in power save.

Then I tried an other idea: When I connect the monitor on the VGA-interface at boottime the monitor works correct like descripted above, and afterwards I connect the second monitor with the HDMI-interface, both monitors works fine and show the same content (mirrored screens). Then I want to expand the display to both monitors (two independent screens). A strange effect appears: Depending on the Screen for the starter-band, the mouse can only move on one of the monitors. I can move windows from one monitor to the other monitor, but I can't get them back, because of the limitation of the mousepointer. That's amazing.

I appended the dmesg-file for the case with two monitors connected via VGA and HDMI at boottime.