After the workaround in comment 2, I found the external monitor couldn't be used ThinkPad P1 and P72, it's a critical issue.
For normal user, they just switch from intel to nvidia, after that update-initramfs, the external monitor can't work. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1798708 Title: It will load nvidia driver when swith to Intel mode To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1798708/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
