With reference to post#50, it turns out my problems were caused by the 5.3 kernel not handling the nvidia gpu usb-c driver properly.
I could fix using: sudo sh -c 'echo "blacklist ucsi_ccg # Fix suspend freeze bug" >> /etc/modprobe.d/blacklist.conf' See: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1850238 Sorry for the noise. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1848771 Title: Reboot after resume from suspend (deep) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1848771/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs