Massive performance problems with flightgear 2020.1.3 (same with 2018.3.5) in windows 10
Hi,
I run windows 10 64bit (latest build) and linux MX19.2 dualboot on following system:
Asrock H81M with i5-4460 and 8Gb ram, Radeon RX570 8Gb, SSD.
All drivers properly installed and latest stable builds (radeon driver i tried beta too - no difference)
On linux FG runs smooth with 55fps, most settings set to high quality.
So far so (very) good.
Windows instead is a massive problem.
The screen while FG loads after statring the program ist heavily pixelated and after it has loaded completely the menu is blank grey without labels.
Choosing the second GUI-style helps to get the labels back at least (but looks really last millenial- well i could live with that).
But i never get more (but not less either) than 30 fps (and frequent dropouts) - no matter how low or high the settings are.
I did the "performance-problems checklist" and "trobelshooting grafical artifacts". OpenGL is supported, drivers are present and Urban Terror runs at 125fps!
Furmark at FHD 51fps
Wireframe mode doesnt change anything. I tried the ATI-hack. No changes either. Framespacing is 35-50 ms. Problem on cessna 172 and 550 all airports
Debugging console shows following warning:
52.05 [WARN]:OSG PNG lib warning : Interlace handling should be turned on when using png_read_image
55.32 [WARN]:OSG Warning: Material::setShininess() of 254 is above permitted maximum, clamping to 128.
A hardwaremonitor showed me that the cpu is permanently under full load while the GPU toggles bettween zero and modest load.
I have no clue and hope you have an idea how i could solve the problem.
I know i simply could run it at linux but i have good reasons (peripherical hardware) why i would like to use windows.
Thanks in advance!