It looks like https://bugs.launchpad.net/ubuntu/+source/linux- hwe-5.8/+bug/1934647 is about the same. Here it's Intel UHD Graphics 620 - there it's about nvidia.
5.8.0-55 is fine 5.8.0-63 is affected 5.11.0-25 is affected I did journalctl -b-1 > prevboot1.txt journalctl -b-2 > prevboot2.txt journalctl -b-3 > prevboot3.txt journalctl -b-4 > prevboot4.txt journalctl -b-5 > prevboot5.txt Using 5.8.0-63 (or 5.11.0-25) the internal display is black - but the system is running "normal" (ssh, HDMI display) ** Attachment added: "prevboot1.txt .. prevboot5.txt" https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.11/+bug/1939160/+attachment/5516795/+files/prevboot1-5.tar.gz -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1939160 Title: [HP Probook 450 G6] Laptop Monitor Turns off During Startup, but older kernel versions work (updated system log) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe-5.11/+bug/1939160/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs