why is Multiplane Overlay (MPO) disabled by default in new versions of NVCleanstall ?

[AsadAlrafidain]

I noticed this after NVCleanstall 1.17
I know that it is generally regarded as a good tweak, but why give it a special treatment over other tweaks?

 

[chrcoluk]

I think is needed for gsync to work reliably, as well as used more in the latest Win11? I wouldnt turn that off (by off I mean ticked) personally.

 

[AVATARAT]

I think is needed for gsync to work reliably, as well as used more in the latest Win11? I wouldnt turn that off personally.

Check latency with LatencyMon, disable MPO, check again - decide for yourself which you prefer.

 

[umeng2002]

Is it needed for anything? I mean, why even have it if causes nothing but issues?

 

[Onasi]

Is it needed for anything? I mean, why even have it if causes nothing but issues?

It allows seamless minimizing and alt-tabbing between fullscreen apps. Even with VRR. For example, on older OS G-Sync when enabled straight up did not allow exclusive full screen apps to minimize. And, unless using the hacky implementation of windowed GS in NVCP, it also didn’t work for anything BUT exclusive fullscreen. With MPO, all those distinctions are irrelevant - GSync works with everything and most apps act like they are borderless windowed for all intents and purposes.
As for it causing nothing but issues - it depends. I personally never had any on my Win 11 install. No flickering, no stuttering, nothing. It just works seamlessly.

 

[GerKNG]

for me it is not checked.

 

[chrcoluk]

It allows seamless minimizing and alt-tabbing between fullscreen apps. Even with VRR. For example, on older OS G-Sync when enabled straight up did not allow exclusive full screen apps to minimize. And, unless using the hacky implementation of windowed GS in NVCP, it also didn’t work for anything BUT exclusive fullscreen. With MPO, all those distinctions are irrelevant - GSync works with everything and most apps act like they are borderless windowed for all intents and purposes.
As for it causing nothing but issues - it depends. I personally never had any on my Win 11 install. No flickering, no stuttering, nothing. It just works seamlessly.

Thanks for explaining it, I feel it should be unticked by default, which @GerKNG says it is anyway.

 

[Feyd]

It isn't checked by default. So you did it once and then you used your last config.

 

[W1zzard]

It isn't checked by default. So you did it once and then you used your last config.

This. It's a system-wide setting, so the installer picks up the current setting, so it doesn't turn it off when you don't expect it

 

[AsadAlrafidain]

This. It's a system-wide setting, so the installer picks up the current setting, so it doesn't turn it off when you don't expect it

I just wanted to clarify that I don't use the "Use previous settings" button, but I indeed have the "disabe MPO" option ticked when using previous versions of nvcleanstall, so maybe the new version employed an existing ini file from somewhere, but what's weird is that despite me almost ticking every option whenever I use nvcleanstall, this is the only option that persist.

 

[W1zzard]

I just wanted to clarify that I don't use the "Use previous settings" button, but I indeed have the "disabe MPO" option ticked when using previous versions of nvcleanstall, so maybe the new version employed an existing ini file from somewhere, but what's weird is that despite me almost ticking every option whenever I use nvcleanstall, this is the only option that persist.

That's how it's designed. It will read the current system-wide setting from the registry (nothing is restored from an ini file). And yes, it's independent of "use previous settings"

 

[wtfisgoingon]

I noticed this after NVCleanstall 1.17
I know that it is generally regarded as a good tweak, but why give it a special treatment over other tweaks?

With W11 with current updates even as old as 6 months ago, it doesn't matter if that box is checked or not since it doesn't actually do anything. With older W11 and W10 I'd guess that it probably might, easy enough to check though if they are or aren't disabled.

 

[W1zzard]

since it doesn't actually do anything

Source?

 

[wtfisgoingon]

Source?

I tested it myself multiple times over the last few days. It seems to only add that registry entry. I see it adds that, I have no idea how to tell if it does anything else but that registry entry doesn't work and hasn't for quite some time. Also, DXDIAG reports MPO is still enabled after using it. This is all on W11.

I was hoping it would work it was one of the first things I tried.

 

[W1zzard]

but that registry entry doesn't work and hasn't for quite some time

that's what I meant. What's your source for that?

 

[wtfisgoingon]

that's what I meant. What's your source for that?

Again just myself, I am sure it was more than 6 months ago it might have been longer but same thing. I was using the registry entry and DXDIAG. Then since it wasn't very important to me I was just bored I forgot all about it until a week or so ago when someone I was helping brought it up insisting it helped and I remembered it not working months ago so I thought I'd double check and noticed it not only still didn't work but nobody seemed to notice or mention it anywhere. That led me down the path of trying to figure out if there was a way to do it, and pretty much anything I found always goes back to the registry entry.

I was hoping I'd find some better way to verify if MPO is disabled or not as well as a way to do it if it was possible. I couldn't find any answers so I just started trying things and trying to learn.