If you do Ctrl + Alt + F1 it will give you a console at the login screen and IIRC "gdm.service restart" will bring the login screen back up.
-Wil
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Also run
"opkg install --force-reinstall angstrom-gdm-autologin-hack" and it will fix the auto login issue. But i think you have to reboot for it to take effect. Note that I just copied and pasted right form the post you replied to.
-Wil
No problem