I get caught in this loop now and then. It happens to my laptop when I
have a set of Logitech USB headphones and a second display hooked up via
HDMI. If I remove those, it boots normally.
This time I discovered it happened to both lightdm and gdm. Up to
today, I thought it was lightdm related.
To clarify: it's a Logitech headset (with microphone) connected by USB
and a secondary display connected by HDMI.
The laptop boots normally until it reaches the login screen. I enter my
password, the screen changes, blips, then I'm back at the login screen
again. This cycle repeats as long as I
