I used the workaround from bug #780791 to get rid of this problem in precise:
Create file /usr/local/bin/dl-workaround.sh with following content: #! /bin/bash XRANDR=`which xrandr` if [ "x$XRANDR" != "x" ]; then $XRANDR -o 0 fi Then execute sudo chmod +x /usr/local/bin/dl-workaround.sh and put the following line into /etc/lightdm/lightdm.conf in the section responsible for the usb-seat: display-setup-script=/usr/local/bin/dl-workaround.sh -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/885394 Title: Greeter screen resolution too small for USB monitors (multiseat) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/885394/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp