I have HP Proobook 450 and also have this problem. It is not in Nvidia driver cause i have internal intel gpu. when i plug external monitor as secondary monitor - i see ubuntu banner and after login blindly i may do what i want on second screen but internal notebook monitor black.
kernel 5.11.0-22 and 5.11.0-25 have this problem as well. for now i downgrade kernel to 5.8.0-55 and i'm waiting for bug fixes -- 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/1934647 Title: [HP Pavilion Gaming Laptop 15-dk0xxx] Black screen at login using 5.8.0-59, but 5.8.0-43 and 5.12.14 work fine Status in linux package in Ubuntu: Confirmed Bug description: If I choose nvidia driver, then the screen is black and I cannot log in. To log in, I need to delete all nvidia files. After that, the xorg is selected and I can log in. But I cannot edit brightness. I can hardly see anything on the screen. The battery is draining very badly. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1934647/+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
