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Idle / Throttling only working when Monitor plugged out?


seltsam23
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He guys,

 

just discovered the strangest behavior with my hack.

Its running for quite some time and its pretty reliable, I'm happy.

But now I wanted to get rid of my GPU-Throttling problems once and for all.

So I did some testing with windows and the onboard-card and used an energy-meter to clearly see when the gpu is throttling.

 

Don't ask me how I found out in the end, but:

 

When Starting the machine and booting into MacOS it runs at about 130W at idle - way to much.

( Under windows its idling at 90W - thats better. )

 

BUT: When starting MacOS with my Monitor plugged out and only plugging it back in when the boot reached the login-screen: solid 90W!

I did some Benchmarking: performance is exactly the same, but Idling/Throttling actually works flawless then!

Repeated this quite some times, always the same outcome:

Booting with Monitor plugged in: 130W Idle.

Booting with Monitor plugged out: 90W Idle.

 

So, guys. Do you have any idea why GPU Idle/throttling only works when I'm booting with my monitor plugged out (and then pluggin it back in at login)?

And the next quesiton: How to fix this?

 

Thanks guys!

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