Changing the "PnP OS Installed" option from "No" to "Yes" in the BIOS Setup seems to have corrected the problem. All my devices still work correctly (so far), and the keyboard now works in Single User mode.
For the record, PnP OS Installed has been set to No for every Ubuntu version I've installed, with no problems until recently. -- ps2 keyboard does not work on VIA chipset mainboard https://bugs.launchpad.net/bugs/117899 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs