Can't start lightdm.

[john.boyer@abilitiessoft.org]

Hello,

This afternoon there was a momentary power failure. My UPS failed also. After rebooting I got the message Screen not in text mode. Only tty7 is affected. 
Typing service lightdm restart as root produces the same message. How can this happen? How can I fix it?

Thanks,
John

-- 
John J. Boyer
Email: john.boyer@abilitiessoft.org
website: http://www.abilitiessoft.org
Status: Company dissolved but website and email addresses  live.
Location: Madison, Wisconsin, USA
Mission: developing assistive technology software and providing STEM services 
        that are available at no cost