It sounds like you've hit the problem Nvidia mentions in their documentation:
http://us.download.nvidia.com/XFree86/Linux-x86_64/535.54.03/README/egpu.html so I guess falling off the bus is just as bad as being unplugged. Can you provide logs mentioning falling off the bus? I only recall a different user mentioning it recently in bug 2023585. ** Package changed: xorg (Ubuntu) => nvidia-graphics-drivers-535 (Ubuntu) ** Changed in: nvidia-graphics-drivers-535 (Ubuntu) Status: New => Incomplete -- 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/2028199 Title: GPU disconnect, then minutes later Xorg display lockup To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nvidia-graphics-drivers-535/+bug/2028199/+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
