My laptop does not detect external monitor

[hedicoache]

my laptop did recognize the external monitor.. and then it stopped. monitor says "no video". not sure if I should junk monitor or if it is still good..? Thanks,

 

[nukemaster]

Test the monitor on another system or the laptop on another monitor.

Did you try the built in combo keys to swap displays(NF + F6 or whatever that laptop uses).