Maybe my english is poor. I'm so sorry.
Try to explain again.
Since I use reclock and MP i have to set ON Aero to let vsync correction work fine. With Aero OFF + EVR vsync correction never work. never.
Since last MP RC1 + Reclock the vsync correction do not work anymore with or without Aero on the plasma (hdmi connected). Still working on both monitor if I use Vmr9 and still working on the LCD 19" monitor using evr dvi/vga connection). The logs can help you to understand the issue?
Until Media portal RC1
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Lcd 19" 1440x900 75HZ (Primary monitor) Evr + Aero Off : vSynch correction never work
Panasonic 37" 1280x720 50HZ (Primary monitor) Evr + Aero Off : vSynch correction never work
Lcd 19" 1440x900 75HZ (Primary monitor) Evr + Aero On : vSynch correction Ok
Panasonic 37" 1280x720 50HZ (Primary monitor) Evr + Aero On : vSynch correction Ok
Since Media portal RC1
==================
Lcd 19" 1440x900 75HZ (Primary monitor) Evr + Aero On : vSynch correction Ok
Panasonic 37" 1280x720 50HZ (Primary monitor) Evr + Aero On : vSynch correction do not work anymore
Lcd 19" 1440x900 75HZ (Primary monitor) Vmr9 + Aero On : vSynch correction Ok
Panasonic 37" 1280x720 50HZ (Primary monitor) Vmr9 + Aero On : vSynch correction Ok
You have a really weird situation. In my experiance aero=stutter, esp when using 2 monitors that are not set to matching refresh rates.
I think Im right in saying that under normal situation any EVR mode will fight against reclocks vsync. This is not a bad thing however providing you have reclock target vsync position above where EVR wants it. This is what I see here at least, the vsync position reported by reclocks OSD will not go to my target set which is near the top of the screen. EVR is trying to pull the target vsync lower while reclock is trying to pull it higher. The end result is a stable vsync position somewhere in the middle. If you set reclcocks vsync position lower that where EVR is wanting it then you'll get stutter.
Of course if I use VMR9, overlay or Haali then reclock will always get its way where vsync is concerned.
What I suggest is to enable reclocks OSD and look where vsync is reported and see if its stable, then use shift+ctrl+alt+f11 / f12 and make sure reclocks target vsync position is above that point. See if that helps.
I have not done much testing using Reclock vsync correction with Aero on. Generally I would say Aero is unhelpful, at the very least adding latency, when you have a well controlled renderer which controls vsync well (eg. using Reclock).
However, I had noticed recently that, with mpc-hc, Reclock vsync correction does work with Aero on, using the mpc-hc "EVR sync" renderer or "EVR CP", when their own vsync control is turned OFF, but NOT with their vsync options turned on, OR with the standard EVR renderer.
So with EVR it does depend on how it is set up - whether the player is using its own EVR Custom Presenter, or the Windows "standard" and, if it is a Custom Presenter, how it is set up.
I have found in the past that many efforts to fix vsync related judder are half-baked, do not work as well as Reclock and, for good measure, stop Reclock from working. MadVR vsync correction, for example, is only partially effective and still, sometimes, you need to re-seek to stop judder. EVR sync renderer in mpc-hc actually does what it does very well; ar-jar really knows his stuff, when it comes to vsync, he just does not have Reclock's code to make big changes in refresh rate (principally, I would guess the resampler). However, the best option, which can totally eliminate judder if refresh rate and frame rate are very close to being compatible (23.976 @~23.976Hz or ~59.940Hz, but NOT even @24hz or 60Hz) fights horribly with Reclock (awful judder), so it cannot be used even with Reclock vsync correction OFF! The weaker of EVR sync's vsync methods is still not compatible with Reclock vsync correction, but is compatible with Reclock changing media speed. however, it only reduces judder, it does not totally eliminate it. So EVR sync can fix judder as long as you do not use Reclock at all and have a compatible refresh rate and frame rate. Or it can reduce judder if you need to use Reclock to change media speed eg. 23.976fps to 24Hz or 25Hz, but Reclock vsync correction must be OFF! Only Reclock can completely fix judder in all the above situations, but for that to happen EVR sync renderer's vsync options must ALL be OFF (and D3D or Aero ON). So you can see how the way vsync is implemented in an EVR CP can effect whether Reclock can be used
at all let alone whether Reclock vsync correction can be used!
It sounds like MP is probably using its own CP and has changed its settings, maybe in an attempt to improve vsync. i think you need to raise it with them. Maybe there should be an option to turn off MP vsync control, for those using Reclock?