Confirming the bug still applies.. Whenever user-change / guest-session is activated the computer deadlocks, only hard boot will make the day. I.e., all interrups are blocked - fn + key and power button has no effect.
Also, i've experienced similar problems when switching out from serial VT to VT 7/8 but beleive this has been fixed. Same type of deadlock also occurs on occation while resuming from hibernation. This occurs, I think, when monitors connected while entering hibernation mode has been disconnected when resuming again. Attached is the `dmesg | egrep "(irq|fglrx|acpi|pci)"` and my hardware is: 01:00.0 VGA compatible controller [0300]: ATI Technologies Inc Mobility Radeon HD 3400 Series [1002:95c4] aticonfig --query-monitor Error: option --query-monitor is not supported when RandR 1.2 is enabled! aticonfig --list-adapters * 0. 01:00.0 ATI Mobility Radeon HD 3400 Series aticonfig --query-connectortype=crt1 connector type: VGA . aticonfig --query-connectortype=lvds connector type: unknown . ** Attachment added: "dmesg log" http://launchpadlibrarian.net/38617180/dmesg.filtered -- blank screen when starting second session (tested with guest session) https://bugs.launchpad.net/bugs/266911 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
