I'm guessing the HDMI port is connected to the Nvidia GPU, it usually is on a hybrid laptop. And I'm seeing that you don't have a proper driver for the Nvidia GPU installed. Please open the 'Additional Drivers' app to install a supported Nvidia driver.
** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete ** Tags added: hybrid multigpu multimonitor nouveau -- 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/2035397 Title: I had a problem with HDMI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/2035397/+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