Fingerprint reader functionality under #Linux sucks.
1. Every few reboots/updates/whatever-triggers it, the fingerprint functionality GETS DISABLED all by itself. The bug is there in BOTH Ubuntu and Arch Linux ( #gnome ).
2. GDM won't let me choose between pass & fingerprint reading. This has repercussions for gnome's keyring.
3. Because the keyring is not unlocked, launching things like Chrome requires you to type a password! Again!
Overall, abysmal.