How to enable vsync via config file in packaged game?

Development Programming & Scripting
1

Hi,

I’m experiencing some strange behaviour with the bUseVSync option. When setting it to true in Saved\Config\Windows\GameUserSettings.ini of my project and restart the editor, vsync works as intended. When I copy this ini file to either Config\ or Saved\Config\WindowsNoEditor of a packaged game, all commands (e.g. FullscreenMode) are working except the vsync command, which is ignored. When typing r.vsync in the console it says 0 and “LastSetBy:Code”. Doing the same in the editor says 1 and “LastSetBy:GameSetting”, as it should be.

Setting it to 1 manually in the console works, but I’d like the config file to do this for me.

Even more crazy stuff:
The FullscreenMode behaves different depending on where I place the config file. If I place the GameUserSettings.ini under Config\ in the packaged game, FullscreenMode = 2 ignores the ResolutionSizeX and Y set in the very same file, while FullscreenMode 0 and 1 use it. Under Saved\Config\WindowsNoEditor\ though it uses the given resolution.

2

Anyone an idea?

3

Have you figured this out yet? I need to do the same thing.

4

Sadly not, but I haven’t tried this with 4.7 yet. My workaround is to create a custom config variable that stores the vsync setting and on start I set vsync via console command accordingly.

5

So dumb that that is necessary.

1 Like
6

This is what works for me, put this in your engine.ini file.

[SystemSettings]
r.VSync=1

7

This isn’t working for me on 4.11.2

8

I just tested for you, still works for me 4.11.2, win10, nvidia latest drivers…

9

Ik this is an old question but for anyone coming over this goto GameUserSettings.ini and then change bUseVSync=False to true

3 Likes