1080ti high idle clocks when second monitor connected

[HangTime]

I have a 1080ti that consumes around 72W idle according to GPU-Z. Load is 0%, voltage 0.762v, GPU clock 1468 vram clock 1377 (seems high).
Windows Power plan set to "Power Saver", Nvidia control panel power management mode set to "Optimal Power".

If I switch the second monitor off, the clocks drop down to 177/101 and it uses about 23W which is what I expect.

Is there anyway to fix this behaviour so it downclocks properly when both monitors are switched on?

 

[Tetras]

Holy moly, in TPU's review the 1080 Ti only used one additional watt, which suggests it must be possible?

What refresh rate is your monitor (and second monitor)?

 

[Alt0153]

afaik thats just how it works with a second display on

 

[Glanza]

IIRC it was a old issue that was supposed to be fixed when you have dual monitors running over 120hz. If you set your 2nd monitor to 60 it should downclock.

 

[HangTime]

Holy moly, in TPU's review the 1080 Ti only used one additional watt, which suggests it must be possible?

What refresh rate is your monitor (and second monitor)?

Primary is 360hz, secondary is 165hz.

afaik thats just how it works with a second display on

It's stupid, there's no reason it needs to be running such high clocks.

IIRC it was a old issue that was supposed to be fixed when you have dual monitors running over 120hz. If you set your 2nd monitor to 60 it should downclock.

Tried that, didn't work.

I have found a fix which is to use Nvidia Inspector, has a function to downclock to the lowest powerstate with multimonitors.

 

[Scania]

Something wrong here, my MSI Lightning X 1080ti sits quite happily @ 24w idle with two displays running, both at 60Hz admittedly….

 

[HangTime]

It's to do with high refresh rates apparently, although it was supposed to have been fixed allegedly. There's no excuse for this really. With the Nvidia Inspector tweak I get about the same idle wattage as you.