Find a solution. Clean installation of Ubuntu 20.04 works with Linux kernel 5.4.0.26, after 'apt upgrade' kernel will be upgraded to v5.4.0.29. But both versions are hanging while boot up (if external monitor is connected). I've installed Linux kernel 5.6.11 (the latest currently) and problem gone away. You can use this tool to upgrade your kernel - https://github.com/teejee2008/ukuu (you can download the latest free version - Ukuu v18.9.1).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1874194 Title: Ubuntu 20.04 HDMI connected, no boot To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874194/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
