@Alessio Done. Fresh install, then update, then install linux-rt results in a return to the previous hard-lock behaviour. I have to force the laptop to power down by holding the power button.
** Attachment added: "Xorg.0.log" http://launchpadlibrarian.net/13373175/Xorg.0.log -- [hardy] Black X screen and system halt after installing linux-rt https://bugs.launchpad.net/bugs/197130 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs