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 Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1874194 Title: Ubuntu 20.04 HDMI connected, no boot Status in linux package in Ubuntu: Confirmed Bug description: I have installed Ubuntu 20.04 (using the image created on 20 april) on my Dell XPS15 9560. This laptop has a Intel / nVidia combo. The problem i am facing is that when i have an external monitor connected to the laptop through the HDMI connector of the laptop, Ubuntu does not boot and hangs on the splash screen. I have not found any way to get logging on any kind. Before i was running Ubuntu 18.04 and did not have any problems with the monitor and HDMI cable. After boot is finished (without monitor connected) inserting the HDMI cable works fine and i can use the monitor and laptop screen without any problem. I have installed the preferred nVida proprietary driver. Also it does not matter if booting with nVidia selected or Intel selected. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1874194/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
