Comment 71 for bug 921236

Hi was using 12.04 with an external montor since months, and had no problems. most of the time the laptop remained always connected to the external monitor. in the last weeks I started having problems when reconnecting to the monitor (BUGs in xorg.0.log, machine locked but accessible via ssh), both when booting with external monitor connected and when connecting the external monitor after booting.

evdev upgrade history:

/var/log/dpkg.log.6.gz:2011-12-23 11:48:45 upgrade xserver-xorg-input-evdev 1:2.6.0-1ubuntu12 1:2.6.0-1ubuntu13
/var/log/dpkg.log.2.gz:2012-04-27 09:43:19 upgrade xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 1:2.7.0-0ubuntu1
/var/log/dpkg.log:2012-06-22 09:27:14 upgrade xserver-xorg-input-evdev 1:2.7.0-0ubuntu1 1:2.7.0-0ubuntu1.2
/var/log/dpkg.log:2012-06-22 10:26:52 upgrade xserver-xorg-input-evdev 1:2.7.0-0ubuntu1.2 1:2.7.0+git20120504.f28507e8-0ubuntu0sarvatt~precise

after installing from xorg-edgers xserver-xorg-input-evdev 1:2.7.0+git20120504.f28507e8-0ubuntu0sar (and dependencies), booting with external monitor connected works, while connecting the external monitor after booting did not lock up the machine, enlarged the virtual desktop but showed no image on the external monitor.

card:
00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07)