Jump to content
Sign in to follow this  

P3D v4 frame drop with three monitors

Recommended Posts

I puzzled. I’m running P3d with Aerosoft A320pro with three monitors, main screen and two smaller ones on each side.  One of them has the mcdu undocked and if I undock another mcdu or pfd to the other screen the frame rate drops from 60 to 30. I doubt it’s a hardware issue as the PC is an Intel i9 9900k running at 5.0, GPU 2080 ti, 32gig ram ddr 3200 with m.2 drive.    🤔 any ideas anyone? 
and thanks. 🙂 

Edited by wlbear

Share this post

Link to post


This is a wellknown problem and it doesn't seem to have a solution. I had the same problem and looked everywhere for a solution.

What helped for me: disable Vsync and frame rate limiters.

I use on the PMDG 737 Air manager and Fsxpand to display the EICAS / flaps and stanby instruments on the other screens, then I don't have to undock to another window




Edited by rob0203
  • Upvote 1

Share this post

Link to post

If you use Vsync and your system cannot maintain the current FPS it will go a step lower :

Eg : 60 hertz monitor / vsync on

If your pc can maintain 60 FPS you will see 60 FPS 

If your pc cannot maintain 60 FPS It will step down to 30 ( 60/2 )

If your pc cannot maintain 30 it will step down to 20 ( 60/3 )

And so on ...


With undocking a second window your pc isn’t capable of maintaining your FPS so it stepped down to half of it...

  • Upvote 1

13900 8 cores @ 5.5-5.8 GHz / 8 cores @ 4.3 GHz (hyperthreading on) - Asus ROG Strix Gaming D4 - GSkill Ripjaws 2x 16 Gb 4266 mhz @ 3200 mhz / cas 13 -  Inno3D RTX4090 X3 iCHILL 24 Gb - 1x SSD M2 2800/1800 2TB - 1x SSD M2 2800/1800 1Tb - Sata 600 SSD 500 Mb - Thermaltake Level 10 GT case - EKWB Extreme 240 liquid cooling set push/pull - 2x 55’ Sony 4K tv's as front view and right view.

13600  6 cores @ 5.1 GHz / 8 cores @ 4.0 GHz (hypterthreading on) - Asus ROG Strix Gaming D - GSkill Trident 4x Gb 3200 MHz cas 15 - Asus TUF RTX 4080 16 Gb  - 1x SSD M2 2800/1800 2TB - 2x  Sata 600 SSD 500 Mb - Corsair D4000 Airflow case - NXT Krajen Z63 AIO liquide cooling - 1x 65” Sony 4K tv as left view.

FOV : 190 degrees

My flightsim vids :  https://www.youtube.com/user/fswidesim/videos?shelf_id=0&sort=dd&view=0


Share this post

Link to post

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
Sign in to follow this  
  • Tom Allensworth,
    Founder of AVSIM Online

  • Flight Simulation's Premier Resource!

    AVSIM is a free service to the flight simulation community. AVSIM is staffed completely by volunteers and all funds donated to AVSIM go directly back to supporting the community. Your donation here helps to pay our bandwidth costs, emergency funding, and other general costs that crop up from time to time. Thank you for your support!

    Click here for more information and to see all donations year to date.
  • Create New...