It appears that it is possible to stop the flickering by forcing the restart of X with Crtl+Alt+Bksp, this is by no way a decent workaround but eventually it stabilizes and I get three independent screens working properly.
My hardware is a Lenovo Thinkpad P50 with nvidia Quadro M1000M connected to a Lenovo Thinkpad Dock, which in turn connects to two Lenovo ThinkVision via display port to DVI-D connecters. I am running Ubuntu Gnome 17.04 with nvidia driver 375.39-0ubuntu5. ** Attachment added: "xrandr.txt" https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-361/+bug/1615734/+attachment/4869147/+files/xrandr.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1615734 Title: Multiple monitors broken To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-361/+bug/1615734/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
