Hi there. Yes it still affects me. I am still on 12.04, and unfortunately as I have to use this laptop for work, I can't risk trying out development releases.
My work around is to simply not hot plug the monitor (i.e. shut down if I want to remove or add the 27" monitor), so if no-one else is bothered by this I am happy for it to be closed. The only things this affects really is my discussion with people about Ubuntu: "oh yes Ubuntu is great, apart from it crashes if I unplug my monitor...". -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/963933 Title: System freeze when hotplug 27" monitor in Ubuntu 12.04 Status in “linux” package in Ubuntu: Incomplete Bug description: I'm not sure if this is a bug yet, hence the question. I have a Dell XPS 17" laptop (1920x1080 resolution) and recently got a new Dell 27" monitor (2560x1440 res). The laptop has an nVidia discrete card, but I don't actually have it set up (i.e. I haven't got around to successfully setting up Bumblebee yet), so I'm assuming this is all on the Intel card. The external monitor is connected via a Mini Display Port to Dual-Link DVI (the Apple branded one) adapter, then via DVI cable to the monitor (it's all I have around that works). If I boot the laptop with the external monitor connected, everything works perfectly (except the login screen goes very low res, but I can live with that). However, if I unplug it while connected, the display will go black with the mouse cursor still visible, and completely lock up. Caps lock does not go on/off, will not respond to SysRq, Ctrl+Alt+Del, switching to a different terminal (Ctrl+Alt+F1 etc.). Only a hard reboot will do the job. The same happens in all these scenarios: - Unplugging the monitor when booted with it connected - "Hot" plugging the monitor after booted - Hitting "Apply" after making changes in System Settings > Display (e.g. if I try to move the monitor positions around) It's not a show stopper for me, I just must be careful not to do the above, which can be inconvenient sometimes. I am not sure where to even start looking, /var/log/syslog does not seem to contain any useful information, nor does /var/log/dmesg.0 or /var/log/Xorg.0.log If I boot from cold with the monitor attached, and avoid the Display settings, everything works perfectly - correct resolution etc. System details follow: $ cat /etc/lsb-release DISTRIB_ID=Ubuntu DISTRIB_RELEASE=12.04 DISTRIB_CODENAME=precise DISTRIB_DESCRIPTION="Ubuntu precise (development branch)" $ lspci | grep -i vga 00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09) 01:00.0 VGA compatible controller: NVIDIA Corporation Device 124d (rev ff) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/963933/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
