New monitor doesnt work with HDMI

[holymonk]

My friend has purchased a new monitor.

However anything plugged into the HDMI port doesnt work.

However you do get a picture when its being booted on the boot screen.

When windows loads it just goes black and says no signal.

Tried another cable that he knows works and same issue.

Any suggestions?

 

[holymonk]

Monitor is Samsung T24B350
Graphics card MSI 7850 P edition

He said that when he uses the mobo hdmi works fine, graphics card gets no further than bios screen.