OK, just rebooted from cold and the mouse was recognized. I ran dmesg again and this time I find the mouse:
[ 3.197434] generic-usb 0003:046D:C50E.0001: input,hidraw0: USB HID v1.11 Mouse [Logitech USB RECEIVER] on usb-0000:00:02.0-2/input0 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/725911 Title: Logitech wireless mouse recognition variable -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs