Public bug reported: A colleague and me are using Ubuntu 12.04 on Lenovo T410s [Nvidia NVS 3100M] in combination with a docking station and an external monitor and noticed following bug:
Using the graphical tool for switching monitors: if you disable the internal notebook monitor, only using the external one, everything works fine (internal monitor is black). However, when you now try to reenable the internal monitor again (so having an extended desktop with both monitors), the external monitor goes black and both screens stay off. Looking at Xorg.0.log via SSH shows that some part of Xorg or the nouveau driver crashed. This happens both in 32 bit and 64 bit version of 12.04 and both in a fully updated system as well as when started as live system from USB stick. One way to prevent this from happening is to use xrandr --auto, then both monitors are in clone mode and you can use the graphical tool again for setting up your desired configuration. ** Affects: xorg-server (Ubuntu) Importance: Undecided Status: New ** Tags: precise -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg-server in Ubuntu. https://bugs.launchpad.net/bugs/998741 Title: Xorg/nouveau crashes when switching notebook monitor back on To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg-server/+bug/998741/+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