Low FPS when undocking window to second screen

Any issues, problems or troubleshooting topics related to the Prepar3D client application.
nielsvi
Posts: 5
Joined: Wed May 16, 2018 1:26 pm

Low FPS when undocking window to second screen

Postby nielsvi » Wed May 16, 2018 1:38 pm

Hi all,

Since two days I experience a huge drop of FPS when undocking a window to my second screen (OpenCockpits FMC).
I did some research and stumbled upon some other topics, however none of the solutions work.
I tried disabling the 'in-game overlay', different settings in Nvidia settings game profile, however, no luck so far.

I have all the latest updates of drivers and Windows 10. Also running the latest version of Prepar3d V4 (4.2).
Prepar3d was running solid for almost a year now, no changes made te last time, except for a new Windows Update (the latest). Returning to the version before that one also made no difference.

All windows I undock (also the P3D default planes) to the second window cause the FPS to drop to almost below 10, where without an undocked window, or with an undocked window on my main screen, the FPS are around 40-50.

I hope someone can help me, cause this absolutely ruins the fun I have with my home cockpit.

Thanks for helping me.

Regards,

Niels

User avatar
Brady Butler
Lockheed Martin
Posts: 656
Joined: Tue May 09, 2017 5:31 pm

Re: Low FPS when undocking window to second screen

Postby Brady Butler » Wed May 16, 2018 2:37 pm

Hello Niels,

Do you have GPU overclocking/monitoring software?

Some user-found solutions can be found in the threads below, though these may be threads and suggestions you've already tried:
https://www.prepar3d.com/forum/viewtopi ... 67#p175067
https://www.prepar3d.com/forum/viewtopi ... 2&start=15
https://www.prepar3d.com/forum/viewtopi ... 3&start=60

Regards,
Brady
Brady Butler
Prepar3D® Software Engineer

nielsvi
Posts: 5
Joined: Wed May 16, 2018 1:26 pm

Re: Low FPS when undocking window to second screen

Postby nielsvi » Wed May 16, 2018 11:19 pm

Hi Brady,

Thanks for the reply. I already tried the solutions offerde in those trends

I don’t use any GPU monitoring/overclocking software.

Regards

User avatar
Brady Butler
Lockheed Martin
Posts: 656
Joined: Tue May 09, 2017 5:31 pm

Re: Low FPS when undocking window to second screen

Postby Brady Butler » Thu May 17, 2018 11:34 am

Hello,

Are both monitors plugged into the GPU? It's possible one might have been plugged into the motherboards graphics.

Did you add any new software to the computer before seeing this behavior?

Are you running another program while running Prepar3D?

Regards,
Brady
Brady Butler
Prepar3D® Software Engineer

nielsvi
Posts: 5
Joined: Wed May 16, 2018 1:26 pm

Re: Low FPS when undocking window to second screen

Postby nielsvi » Fri May 18, 2018 9:07 am

Hi,

I have two GPU's:
- GTX 1070
- GTX 1050 TI

The main screen is connected to the 1070, my CDU to the 1050.
Connecting both to the 1070 seems to solve the problem, however, how is it possible
that 'out of the blue (?)' the 1050 causes stuttering, without changing anything?

Regards,

Niels

bob34
Posts: 9
Joined: Sat Feb 09, 2013 5:50 am

Re: Low FPS when undocking window to second screen

Postby bob34 » Sat May 19, 2018 8:51 pm

Disabling the GeForce Experience In Game Overlay for shadowplay solved the issue for me.

Herman01
Posts: 13
Joined: Fri Apr 28, 2017 7:32 pm

Re: Low FPS when undocking window to second screen

Postby Herman01 » Mon May 21, 2018 12:06 am

Hi Niels,

I have also two GPUs (GTX1080, GT710) and undock mainpanel and the FMC screen to GT710
I experienced "Flickering" or "Black Flashing" screens after Windows 1803 update.

I enabled "VSync" and "Triple Buffering" in the settings and that fixed the problem. But Yesterday, when I undocked the FMC screen again, massive flickering / black flashing occurs.
I had to reduce the Target frame rate to 50 fps (was unlimited) to fix it.

You can read my thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129434
Other interesting thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129546

Herman

nielsvi
Posts: 5
Joined: Wed May 16, 2018 1:26 pm

Re: Low FPS when undocking window to second screen

Postby nielsvi » Mon May 21, 2018 9:17 am

Disabling the GeForce Experience In Game Overlay for shadowplay solved the issue for me.
I already disabled this, however no luck.
Hi Niels,

I have also two GPUs (GTX1080, GT710) and undock mainpanel and the FMC screen to GT710
I experienced "Flickering" or "Black Flashing" screens after Windows 1803 update.

I enabled "VSync" and "Triple Buffering" in the settings and that fixed the problem. But Yesterday, when I undocked the FMC screen again, massive flickering / black flashing occurs.
I had to reduce the Target frame rate to 50 fps (was unlimited) to fix it.

You can read my thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129434
Other interesting thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129546

Herman
Hi Herman, thanks for your reply. I tried enabling VSync and triple buffering, but no difference was seen. Still got the 10 fps when connecting the cdu to my second GPU.


I remember back in the FSX days that I encountered the same problem. Nothing could fix it then. I hope LM could investigate this problem further, because a lot of people are having the same problem and I think it's too easy to only blame other programs, drivers, etc.

Niels

Martyson
Posts: 4483
Joined: Sun Mar 25, 2012 11:08 am

Re: Low FPS when undocking window to second screen

Postby Martyson » Mon May 21, 2018 9:33 am

Disabling the GeForce Experience In Game Overlay for shadowplay solved the issue for me.
I already disabled this, however no luck.
Hi Niels,

I have also two GPUs (GTX1080, GT710) and undock mainpanel and the FMC screen to GT710
I experienced "Flickering" or "Black Flashing" screens after Windows 1803 update.

I enabled "VSync" and "Triple Buffering" in the settings and that fixed the problem. But Yesterday, when I undocked the FMC screen again, massive flickering / black flashing occurs.
I had to reduce the Target frame rate to 50 fps (was unlimited) to fix it.

You can read my thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129434
Other interesting thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129546

Herman
Hi Herman, thanks for your reply. I tried enabling VSync and triple buffering, but no difference was seen. Still got the 10 fps when connecting the cdu to my second GPU.


I remember back in the FSX days that I encountered the same problem. Nothing could fix it then. I hope LM could investigate this problem further, because a lot of people are having the same problem and I think it's too easy to only blame other programs, drivers, etc.

Niels
Just wondering:
Have you tested undocking a panel from a default P3D aircraft to your second monitor?
Best Regards,
Vaughan Martell (KDTW)

nielsvi
Posts: 5
Joined: Wed May 16, 2018 1:26 pm

Re: Low FPS when undocking window to second screen

Postby nielsvi » Thu Jun 07, 2018 5:20 pm

Disabling the GeForce Experience In Game Overlay for shadowplay solved the issue for me.
I already disabled this, however no luck.
Hi Niels,

I have also two GPUs (GTX1080, GT710) and undock mainpanel and the FMC screen to GT710
I experienced "Flickering" or "Black Flashing" screens after Windows 1803 update.

I enabled "VSync" and "Triple Buffering" in the settings and that fixed the problem. But Yesterday, when I undocked the FMC screen again, massive flickering / black flashing occurs.
I had to reduce the Target frame rate to 50 fps (was unlimited) to fix it.

You can read my thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129434
Other interesting thread: https://www.prepar3d.com/forum/viewtopi ... 2&t=129546

Herman
Hi Herman, thanks for your reply. I tried enabling VSync and triple buffering, but no difference was seen. Still got the 10 fps when connecting the cdu to my second GPU.


I remember back in the FSX days that I encountered the same problem. Nothing could fix it then. I hope LM could investigate this problem further, because a lot of people are having the same problem and I think it's too easy to only blame other programs, drivers, etc.

Niels
Just wondering:
Have you tested undocking a panel from a default P3D aircraft to your second monitor?
Hi,

Yes I have.

Gr. Niels


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