I ran into this today. My system has packagekit 1.2.2-2ubuntu3, so it does not look like it is related to bug 1943189.
Since this computer currently is used for testing, I'm in no hurry to install the NVIDIA drivers so I can do some further testing, if needed. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to software-properties in Ubuntu. https://bugs.launchpad.net/bugs/1946196 Title: Additional Drivers fails with pk-client-error-quark: Cannot download packages whilst offline (257) Status in software-properties package in Ubuntu: Triaged Bug description: Additional Drivers fails to install nvidia-driver-470: Error while applying changes pk-client-error-quark: Cannot download packages whilst offline (257) But the machine is ONLINE with full Internet access. WORKAROUND: sudo apt install nvidia-driver-470 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1946196/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp