And I was thinking of replying, but just said to meself... naaah... family forums! And deleted my post :LMAO:

And I was thinking of replying, but just said to meself... naaah... family forums! And deleted my post :LMAO:

 

:LMAO: :LMAO: :LMAO: -- I seriously have gotten a kick outta' this.

I can guarantee you the cause of your problem is your Logitech G5 mouse. I had the same mouse years ago and ran into the same exact issue of poor performance in certain games. The mouse is issuing too many interrupt requests and causing the application's code to stall. Unplug the mouse and watch the problem disappear.

TGMC

Good point - since changinging to a logitech Performance MX mouse and unifying keyboard I lost those "USB mediated stutters", but which you can still get with some USB game controllers and in both cases I would have thought that they would be classed as macro rather than micro stutters. But hey! removing one source af annoyance is another step forward. If Ryan ran a "clean" boot (google) with a clean fsx.cfg (no tweaks) he could then see if some non-Windows app was causing the issue and then by a process of elimination respolve the stutter if due to that cause?

Regards

PeterH

I can guarantee you the cause of your problem is your Logitech G5 mouse. I had the same mouse years ago and ran into the same exact issue of poor performance in certain games. The mouse is issuing too many interrupt requests and causing the application's code to stall. Unplug the mouse and watch the problem disappear.

 

It may be a logitech thing in general. I've had the mouse for a few years, and before that an older optical mouse. When I switch between this mouse and the older optical, I have low fps when moving mouse cursor in FSX. I'll run some more tests...

OMG it's totally the mouse. When I move the cursor (or after moving it still) the FPS frame rate variance goes from almost 0 to 30%!

 

What the heck mouse should I switch to? Is this a Win7 issue?

 

I unplugged the mouse and fps returned to normal and very smooth FSX.

 

It does seem like it takes a while to exhibit this behavior... which makes sense because a fresh reboot doesn't show the issue right away.

I tried switching to my MS wireless mouse - same problem... it may be a Win7/Vista issue.

I tried switching to my MS wireless mouse - same problem... it may be a Win7/Vista issue.

 

It's not. I had the issue on XP :)

 

Uninstall the Logitech software from your system, reboot, and try again. And don't plug that mouse in anymore either.

I don't have any Logitech software installed....

I don't have any Logitech software installed....

 

Are you absolutely certain? The issue really should not be occurring with a totally different mouse... Try shutting the system down and restarting without the Logitech mouse plugged in. Just use the other mouse for awhile and see if it comes back. I suppose the issue could be possible with other mice, I've only ever seen it with certain Logitech mice is all.

, I've only ever seen it with certain Logitech mice is all.

 

Me too, all my previous have been Logitech... except the one I tried today. I'm certain that setpoint is not installed. I'll try it again after work, pull out logitech, restart and put in MS.

If its the old mouse in VC causing FPS drops hence stutters. Its an FSX deal and nouthing to do about it according to PMDG and others!

If its the old mouse in VC causing FPS drops hence stutters. Its an FSX deal and nouthing to do about it according to PMDG and others!

 

Although, they did create a 'patch'. In the top left corner of the NGX, there is a small area to put your mouse and it will fix the FPS VC issue.

Well the way to fix it is to not move your mouse while in the VC hehe... As long as the cursor is on the taskbar or off the sides of the screen you're good.

 

Anyway, I tried with the MS mouse after a shutdown and power up without the old one plugged in. No change, the new MS mouse still exhibits the large fps drop and even when outside of FSX, the task man shows about a 8% increase in CPU when I move the mouse on the screen. Weird.