Power management settings dialog says to blank screen after 30 minutes when on AC power, so I think that's where the 30 minutes comes from.
I have opened a new bug 591699 with more details and the exact steps to reproduce (this time using i386 instead of amd64, with same results). The bug I'm observing is definitely connected to X screen idle blanking, and possibly ethernet I/O at same time. -- Lenovo Thinkpad x100e System freeze during X start-up and while X is running, but only on battery. https://bugs.launchpad.net/bugs/535653 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
