NO HDMI OUTPUT

Can anyone please help i'm pulling my hair out I just cannot get a hdmi output to my Samsung smart tv
..Ive tried all the setting in NVidia screen ive tried windows +p and selecting duplicate but my tv Is saying no device connected yet the computer is saying its connected to a Samsung tv in the display setting and in the NVidia settings
it was working when I first had the computer but cannot get it working for love or money...Running windows 8 64 bit Please please help

hi no-need,
Can you try to:
1. Update the chipset by running the Intel Chipset Update Utility. After the update, open Device Manager > System Devices > right click & choose properties on the Intel H61 Chipset and ensure that the driver is updated (v9.4.0.1022). if you get an older driver, try to update the driver manually by clicking on Update Driver and point it to the new Intel Chipset Driver folder.
2. According to this pdf dataheet, you have the Nvidia GF 615M. Try to check if you have this driver version and update it if necessary
Nvidia VGA Driver
v9.18.13.593 / Win8 64bit
h1100432.exe
192MB
Regards,
neokenchi
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