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Massive performance problems in Win10 with ATI card

Graphics issues like: bad framerates, weird colors, OpenGL errors etc. Bad graphics ar usually the result of bad graphics cards or drivers.
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In order to help you, we need to know a lot of information. Make sure to include answers to at least the following questions in your initial post.

- what OS (Windows Xp/Vista, Mac etc.) are you running?
- what FlightGear version do you use?
- what graphics card do you have?
- does the problem occur with any aircraft, at any airport?
- is there any output printed to the console (black window)?
- copy&paste your commandline (tick the "Show commandline box on the last page of FGRun or the "Others" section on the Mac launcher).
- please upload a screenshot of the problem.

If you experience FlightGear crashes, please report a bug using the issue tracker (can be also used for feature requests).
To run FlightGear on old computers with bad OpenGL support, please take a look at this wiki article. If you are seeing corrupted/broken textures, please see this article.

Note: If you did not get a reponse, even after 7 days, you may want to check out the FlightGear mailing lists to ask your question there.

Re: Massive performance problems in Win10 with ATI card

Postby WoodSTokk » Wed Aug 05, 2020 11:18 pm

Change the GUI style.

Code: Select all
fgfs.exe --prop:/sim/gui/current-style=0


or add this option in the launcher under 'Settings' --> 'Additional Settings'.
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Re: Massive performance problems in Win10 with ATI card

Postby fgrg » Thu Nov 19, 2020 8:10 pm

Just found this thread. I am new to Flightgear, having just started to try to run it on this system:-
Motherboard: ASRock B550 Pro-4
CPU: Ryzen 5 3600 @ 3.59 Ghz
RAM: 16GB
Graphics: MSI Radeon RX 580, 8GB
Driver Version: 27:20:12029.1000
Date: 9/9/2020
OS: Windows 10 Home 64bit
Version: 2004
Build: 19041.630
Version Information
FlightGear Version: 2020.3.2
SimGear Version: 2020.3.2
OpenSceneGraph Version 3.4.2
Build Id: 285
Build Number: 285
Revision: 8d35a05348cb89c6cec67e750c73aa3cebf17366
Graphics/OpenGL Information
OpenGL vendor:ATI Technologies Inc.
OpenGL renderer:Radeon RX 580 Series
OpenGL version:4.6.14736 Compatibility Profile Context 20.9.1 27.20.12029.1000
GLSL Version: 4.60
Max Texture Size: 16384
Depth Buffer Bits: 24

I too have the pixellated screen while things load, and with GUI 1 the menus are blank or flickering. The menus seem to be better with GUI 0.

From this and other posts, it seems that the experienced FG users don't use AMD graphics cards.

It is interesting that the OP's system works fine in Linux. I may have to try that when I have enough time.

I'd appreciate any thoughts on how to make it work better in Win10 in the meantime.
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Re: Massive performance problems in Win10 with ATI card

Postby The epic chicken » Fri Nov 20, 2020 2:55 pm

can you post a screenshot of this
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Re: Massive performance problems in Win10 with ATI card

Postby V12 » Sat Nov 21, 2020 8:29 am

2 years ago I had workstation class laptop Dell M4600 with AMD FirePro GPU. It was rebranded Radeon HD 5950. With old Catalyst drivers worked amazing good, I had only one problem - with activated antialias, FG menu was badly displayed with missing options. Without AA, all was good.
Try to disable all antialias and tessalation options in drivers and in FG launcher and test.

BTW, not only experienced users should avoid AMD GPU, but all. if I remember correctly, ATI (and then AMD) never had good GPU drivers for OpenGL, only in some specific cases of the workstation grade GPU.
Fly high, fly fast - fly Concorde !
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