It appears the Nvidia Xorg driver can't find any devices. But also the Nvidia driver 545 you have is not officially supported by Ubuntu.
Please use the 'Additional Drivers' app to install a supported driver, then reboot and open new bugs for any problems you find. ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/2043529 Title: HDMI port issues after ubuntu 23 upgrade To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2043529/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp