Version 4.4.0-72-generic seems to be the last version that works for everyone here, on different systems. I renamed this bug to mention Intel, but Shay Perlstein above had the same problem on NVidia.
@Kai-Heng could it be the same bug even if on different graphic drivers? Do you know if there is any code/module that is used for external monitors regardless of the graphics card? For example this entry from the changelog sounds like it might be related: - drm/dp/mst: fix kernel oops when turning off secondary monitor I should have mentioned that I have this problem using a Dell docking station, and I have 2 external monitors connected to it, 1 connected using the display port, the other one using DVI. It wasn't working when using 2 display ports even before 4.4.0-72-generic. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1686189 Title: External monitor connecting problem on Intel graphics card To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1686189/+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
