Here is a slightly more easy way to get VirtualBox to bring up the dialog which leads to a crash: Create a new system (or load an existing one) and put an ISO disc image in its virtual CD/DVD drive (an Ubuntu image will do) for the virtualised system to use. Save the state, then find the disc image on your file system and rename it so that VirtualBox cannot find it. On re-loading VirtualBox, the "Ignore"/"Check" dialog will appear.
I've just tested this on my old Xubuntu 12.04 installation (64bit, same hardware, dual monitors, v319.32 of the NVidia drivers, etc) running Xorg 1:7.6+12ubuntu2 and it works fine - no crashes when I click "Check". -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1242161 Title: Xorg crash on loading some child windows To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1242161/+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