Please try these separately: * Add kernel parameter: intel_iommu=igfx_off
* Use the 'Additional Drivers' app to install an official Nvidia driver. ** Summary changed: - Xorg freeze + After reboot, the screen was blank/black and unresponsive ** Tags added: nouveau ** Package changed: xorg (Ubuntu) => linux-hwe-5.15 (Ubuntu) ** Summary changed: - After reboot, the screen was blank/black and unresponsive + [nouveau] After reboot, the screen was blank/black and unresponsive using 5.15.0-41.44~20.04.1 (but 5.13 works) -- 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/1981849 Title: [nouveau] After reboot, the screen was blank/black and unresponsive using 5.15.0-41.44~20.04.1 (but 5.13 works) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-hwe-5.15/+bug/1981849/+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