HDMI won't give signal

[DonAndress]

Hello.

I have GA-A75M-D2H model with onboard HDMI plus APU A4-3400 processor.
Usually I use DVI but I decided to plug my Samsung TV via HDMI and it worked perfectly.
Then I needed to unplug it and when I tried that again today with the same cable I saw nothing.

When plugged to TV via HDMI, DVI is unplugged.
I plug and unplug with PC unplugged from the power (current) and TV on standby.
Cable is good - checked with different devices.
When cable is unplugged from TV it shows a message "cable unplugged", with cable connected I see "no signal".
Tried latest drivers and no change.
I tried this PC with a HDMI monitor and doesn't work.

What do I do wrong?
Could I break something?
Seems like PC doesn't give a signal to HDMI anymore...

[mikeyb5753]

Use DVI as primary monitor then try setting up HDMI TV/monitor as a secondary monitor, see if that works

[Tiger]

 Standard HDMI Cable has sufficient bandwidth to transfer 720p/1080i video signals between 720p/1080i rated source and sink (display) devices. So if your trying to use 1080p which is a common PC resolution then you need a high speed HDMI not standard HDMI cable.

If you have Dual Link DVI mode enabled in the BIOS, then HDMI won't work.

Some TV sets may be incapable of displaying the screen resolution size you have setup.  

HDMI port, supporting a maximum resolution of 1920x1200.
All integrated graphics ports do not support Hot plug.

[DonAndress]

So if your trying to use 1080p which is a common PC resolution then you need a high speed HDMI not standard HDMI cable.

If you have Dual Link DVI mode enabled in the BIOS, then HDMI won't work.

Some TV sets may be incapable of displaying the screen resolution size you have setup.  

HDMI port, supporting a maximum resolution of 1920x1200.
All integrated graphics ports do not support Hot plug.

Thank you very much for your answer.

But I believe I delivered all information that you refer to.

I can transmit 1080i signal through this cable as I did that before with the very same PC and the very same TV.
Dual Link DVI double checked and disabled - again, this connection worked like a week before.
My Samsung TV has FullHD resolution, I have displayed FullHD media before.
I did not to try hot plug the PC. As mentioned - both PC and TV were switched off.

[DonAndress]

Use DVI as primary monitor then try setting up HDMI TV/monitor as a secondary monitor, see if that works

Thank you for your answer.

Could you please help me with that a bit more?
Should I see two monitors in the system at the same time?
I use Win7, should it be in Display/Resolution settings?

[DonAndress]

My sincere apologies.

I provided incorrect information.

The main connection is D-Sub!
On a daily basis I use D-Sub, not DVI.
Via D-Sub I have normal image on the monitor.

Now when I have the PC connected via DVI I can't get the resolution higher then 640x480 and the resolution drop down list in Win7 is locked.
My monitor is Full HD.
To make DVI work I had to change Dual Link DVI to enabled. Otherwise I had no image via DVI.
I have not tried HDMI yet since it's via DVI.