Gemelli, on 02 Sept 2014 - 9:33 PM, said:

 

Have you tried the cloud.fx "fix"? This cured the cloud problems for me. 

 

 

yes i did no result! still got the problem,

 

 

Ok going to do some more testing on a brand new OS and install lol

Cloud fix works well for stutters in clouds, but does not fix the scenery micro stutters that happen every few seconds. LM need to address this also, plus an Nvidia driver would help...we can only hope!

Cloud fix works well for stutters in clouds, but does not fix the scenery micro stutters that happen every few seconds. LM need to address this also, plus an Nvidia driver would help...we can only hope!

 

Today the only way to eliminate the microstutters is to enable the internal Vsync and set FPS to unlimited.

However, in this way, problems arise if the FPS drop below the refresh rate of the monitor.

The solutions can be only the following:

 

- Monitor G-Sync with minimum frequency at 30hz.

- Driver compatible with the possibility to use Vsync 1/2 refresh rate, as was done with FSX / P3D 1.4. On the other hand, this mode only worked in fullscreen; P3D 2.3 not have a true fullscreen and, therefore, i do not know if this option will never be possible.

agree you have hit the nail on the head, was hoping that a Nvidia driver might do the trick but as you say not being a true fullscreen iut maybe asking to much I will wait and see. The one thing I hate in flight sims is stuttering we are all at a place now when FSX runs pretty darn well with the kit we have.

 

Want to support P3D but I  will drop P3d and stick with FSX if it cannot be improved which I am sure LM will try to do, if not will continue with FSX until such time as it is unsupported and stop simming so a few years yet!! B)

I've yet to buy P3D, so from that standpoint I can't say I know anything about it.  But I do know that for some of the sims I do run, all nvidia drivers after 320.49 introduced micro-stutters with my gtx 780 (and before that with my 660 ti).  I now have little faith in all nvidia driver updates...tried them all to no avail.  For those willing to try anything, the 320.49 whql driver is worth a shot.  Obviously no guarantee that this will help: http://www.nvidia.com/download/driverResults.aspx/63458/en-us

 

Before proceeding on this, it is very important to uninstall your current nvidia driver using the windows control panel.  Otherwise you won't get a clean roll back (at least that has been my experience).

 

 

Before proceeding on this, it is very important to uninstall your current nvidia driver using the windows control panel. Otherwise you won't get a clean roll back (at least that has been my experience).

Using the clean install option in GeForce Experience is doing the same.

Spirit

Using the clean install option in GeForce Experience is doing the same.

Spirit

More than once when using the "clean install" I've seen stutter issues appear after a roll back.  The only method which has worked 100% of the time for me is to uninstall via the windows control panel.  But enough of this sidebar....back to flying...(or complaining about stutters).

You will never get rid  of the micro stutters in p3d until such time as a True full screen setting is available from LM. Not even sure they will offer this, because p3d runs in a hybridised window it does not matter what setting you try in Nvidia  the profile for p3d or the global setting it makes no difference it just stutters due to Vsynch issues.

 

This can only be fixed with a dedicated profile from Nvidia for p3d or the development of a TFS option. It is a shame because I can hold 30 fps but the micro stuttering during climb banking and just the general scenery passing by ruins the effect of a great sim.

 

All the best

+1 for FLAPS15 comment on this.

 

I have a powerhouse of a PC and tried it all to no avail so its back to FSX until this stutter issue is resolved.

I am noticing rhythmic fluctuations in the frame rate counter of -33% when set on Unlimited...  i.e. if I am showing 30fps give-or-take, you will see the counter show a drop to 20-ish every few seconds and very noticeable stutters in turns or side view.  You also see very obvious rhythmic "shudders" at a faster frequency when looking out the windows.  This happens in all weather conditions, weather addons enabled or disabled, REX enabled or disabled, Orbx disabled or enabled, v-sync enabled or disabled (in-sim or NCP, doesn't matter), all combinations of graphics settings, cloud fix enabled or disabled, TrackIR on or off, different display drivers...  none of it matters.

 

The only items that have had an impact:

- setting frame rate slider to a set number that the system can hold (not unlimited)...  though this cuts fps by approx 1/3 regardless of the frame slider setting, so typically in a high-detail area this is down to 20 fps which gives a "strobe" effect.  Only practical when you are in a lower-density scenery area and can deliver at least 40-50 fps consistently.

- flying aircraft with no gps or G1000, or turning the gps off...  I have confirmed this with multiple aircraft from multiple vendors (Carenado, Alabeo, A2A, Lionheart, Realair etc), turning off the gps display immediately eliminates the periodic 33% drop in displayed frame rate at Unlimited setting and stutters are eliminated.  Is there a conflict with refresh rates of these various digital displays and the screen rendering in 2.3?  I did not see this issue at all in 2.2...

 

Is anyone else with stutters at Unlimited seeing the same effect with the gps displays in the VC or the 2D pop-ups?

 

 

My system specs:  i5-3570k 4.2ghz overclocked / Windows 7 64-Bit / 8GB DDR3 / Gigabyte GA-Z77X-UD3H / EVGA GTX 780 SC 3GB / Crucial M4 256GB SSD / WD Caviar Black 1TB & 4TB / Lite-On 24X DVD+-RW / Cooler Master Hyper 212+ / Corsair HX1050 PSU / Corsair Carbide Series 200R ATX / Saitek Pro Flight Yoke / CH Products Pro Pedals / two Saitek PZ45 Throttle Quadrants / TrackIR 5

Is anyone else with stutters at Unlimited seeing the same effect with the gps displays in the VC or the 2D pop-ups?

I don't suffer from stuttering at least to the point it bothers me as long as FPS is good enough (30ish and above), but yes, for example Milviz B55 (P3DV2 version) GPS displays eat huge amount of FPS. With them turned off, the plane isn't any worse in terms of performance compared to pretty much any other detailed GA plane. Loss is easily perhaps 15 fps or so with them turned on. I believe FSX/P3D1.x also took performance hit from glass cockpits, but it at least feels to me that for V2 impact is even worse, at least looking at the B55. Gladly, I like to fly with older planes that have steam cockpits more.  

I have a strange experience with undocking panels moved to more screens.Fps will drop drastics but if you save the flight and load it up the fps is back.sometimes i need to restart pc but its a fair price.

 

I also have autogen stutters but tripple buffering sometimes helps

 

Michael

FYI,

 

After many fights with my notebook I found what was the cause for my periodic stutterfest problem. My Cpu was having overheating when the temperature reach 96 C the system reduce the frequency for half causing stutter.

 

I changed my power settings for reduce 12% of my frequency cpu and now i have maximum 76 C and no more  periodic stutters.

 

ok! My problem was solve. 

 

Please folks check CPU temps when you are using p3d.

I am noticing rhythmic fluctuations in the frame rate counter of -33% when set on Unlimited...  i.e. if I am showing 30fps give-or-take, you will see the counter show a drop to 20-ish every few seconds and very noticeable stutters in turns or side view.  You also see very obvious rhythmic "shudders" at a faster frequency when looking out the windows.  This happens in all weather conditions, weather addons enabled or disabled, REX enabled or disabled, Orbx disabled or enabled, v-sync enabled or disabled (in-sim or NCP, doesn't matter), all combinations of graphics settings, cloud fix enabled or disabled, TrackIR on or off, different display drivers... 

I found this evening that turning off Volumetric Fog really smoothed out my frame rates. Before I was having similar fluctuations in fps on the order of 30% or so. After turning off Volumetric Fog the fluctuations were no more than 10%.

 

I also noticed that with unlimited fps I was able to maintain a significantly higher frame rate than with the slider set at even 2/3's of the frame rate I maintained in unlimited. For instance in New Zealand flying out of NZCH I wavered between 50 and 55 fps with the frame rate slider at unlimited. If I set the frame rate slider to fixed at 35 fps, the best frame rate it could muster was 30 or so. Very frustrating and confusing. I feel like we're all grasping at straws.

 

Tonight I got so tired of the tweaking nonsense that I fired up XP10 and had a beautiful smooth stutter free flight at NZCH, no tweaking required. Not trying to pick a fight - I am HEAVILY invested in Prepar3D - but like most of us I've been tweaking way more than flying since the FSX days and I'd really like to become a better pilot and drop the nightly tweaking and debugging routines.

Volumetric fog is a real FPS killer for me. Problem is without it ticked you don't get realistic mist/fog/low viz below you when you climb out.