Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

My Dell e6400 no longer can extend desktop. The external monitor detected and I can changed the resolution in display properties. But the external monitor reported on a power save mode. To confirm this, I unplugged the cable and the external monitor shown 'no signal detected' message.

Tried with many cables and monitors/projectors.

EDIT: Yes, i did enabled second display. I did this using Windows Mobility Center.

share|improve this question
Did you enable extending desktop to the second display? –  billc.cn May 7 '12 at 11:21
Please specify the Os you're on and tag your question accordingly. –  Bram May 7 '12 at 11:58

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Browse other questions tagged or ask your own question.