Hello,
First of all, my configuration is:
Motherboard: Gigabyte GA-Z77X-UD5H
CPU: Intel i7 3770K
RAM: 2x4GB Kingston XMP Predator
GPU: Gigabyte NVIDIA GTX 670
OS: Windows 8 Pro x64
I connect my 24" monitor to my external GPU via HDMI to HDMI and my Samsung TV to internal Intel HD4000 Graphics via HDMI to HDMI and for more than half year there was no problem and everything was great.
For over a month to the TV it shows "No signal" but the PC recognize the TV and it says that there is no problem. Still there is no picture to the TV.
The problem occurred suddenly without any installation of new software, drivers etc. First I thought it may be from the cable, but when I plug it to the external GPU the TV works. Then I find out that there is an issue with sleeping and wake up to the PC but I disable/enable the device and still no luck. I installed the newest drivers from the Intel web site with no luck at all. Now I installed again the older VGA drivers from Gigabyte site and still have this issue.
Please help because I am out of any ideas.
The bottom line:
PC recognize the TV, “No signal” displayed on TV, TV works when plugged on external GPU HDMI port.
PS: Recently I bought a DP to HDMI cable and the HD4000 don’t recognize it. It is connected to the TV through that cable but the TV works and have a signal when it is connected to the DP port of the external GPU.
I attached links to the DXDiag and the Intel control panel report in the .txt files based on last known working configuration (Monitor to external GPU HDMI-HDMI), TV to internal Intel HD4000 (HDMI-HDMI).
The last I’ve try is DVI to HDMI and there is a signal from HD4000 to TV. What would be the probable reason for stopped working HDMI port (except the cable – tried with 3 different cables) and not working DP port with DP to HDMI cable?
BR
Assen