The Support assistant is telling me that Graphics driver 126.96.36.19925 is the latest version and that I'm up to date.
In fact driver 188.8.131.5294 is the latest version (I just installed it and all seems to be working very well)
After installing 6194 all my strange Audio Issues seems to have disappeared. I have even re-installed Realtek Audio!
I'm still having power plan settings to Never Sleep and Turn off HDD is also set to 0(Never)
I can turn off and on TV(Extended Display) also Boot with TV on or off without any issues with audio missing or playing on the wrong device.
So I recommend that you install 184.108.40.20694,
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