Keep losing signal with Monitor/ CPU and Graphics over 60 idle.

[Problems with my display]

Hey first time posting.
My friend told me to post here after you guys helped him.

I've have my Computer for about 2 1/2 years now with no problems using the same TV Sony bravio with HDMI as my monitor. My PC is An hp pavilion with windows 7 64 bit and I've always been able to play the latest games with max setting no problem. But lately when playing a game like Smite, wow, Streaming a video, or sometimes when i am not on any big programs the TVs turns to purple(default for no signal) and says "No Signal Found". It usually goes back if i alt tab for 1-2 minutes and after that it wont fail again till my game is done.

I recently also did some windows updates near the same time and tried to update my AMD drivers. i went back to an earlier version of it and it helped a little.
I tested the HDMI Cable with my Laptop for a day and had no problems. i believe it has something to do with my graphics card but i'm not entirely sure.
my video card also takes a while to load up when i log on for about 4+ months now about 30s - 3-4 minutes.
Is my graphics card dying? need a new one? or is it something completely different.

I really don't know what else to say, so ask me if you need info.

EDIT: Both My CPU and Graphics are above 60 when mostly idle.
The fan is Running Fine.
I never have opened the case and room is cold.

Operating System
Windows 7 Home Premium 64-bit SP1
CPU
Intel Core i7 2600 @ 3.40GHz 64 °C
Sandy Bridge 32nm Technology
RAM
8.00GB Dual-Channel DDR3 @ 665MHz (9-9-9-24)
Motherboard
PEGATRON CORPORATION 2AB5 (CPU 1) 37 °C
Graphics
SONY TV (1280x720@60Hz)
1024MB ATI AMD Radeon HD 6800 Series (MSI) 64 °C
Storage
1863GB Western Digital WDC WD20EARS-60MVWB0 (SATA) 26 °C
Optical Drives
hp BD E DH12E3LH
Audio
IDT High Definition Audio CODEC

 

[dovah-chan]

Just a quick system run down using something like speccy would have been more suitable than posting the entire dxdiag. But what I would try first is to do a system restore to the time before you installed the windows updates.

 

[Problems with my display]

Just a quick system run down using something like speccy would have been more suitable than posting the entire dxdiag. But what I would try first is to do a system restore to the time before you installed the windows updates.

Before i do that, i Just realized both my cpu and graphics card are above 60 when mostly idle this is more likely the problem.
one that i down really know how to fix.