ValveSoftware
Fullscreen Windowed lost Independent Flip low latency after 14 August 2025 patch
Nvidia GTX 1000 series tho I don't think it matters, MPO capable and enabled or not
Now SDL (DWM) does the stretching of lower res and can even affect the native res after alt-tab, a massive regression!
It was working fine before the patch.
Game would react to desktop res changes and engage Independent Flip mode if res matched the in-game one
Could even automate stretching 4:3 lower res only while in-game, then revert to native on alt-tab
via scripts such as https://github.com/AveYo/Gaming/blob/main/CS2_launcher.bat making use of ChangeDisplaySettingsEx
Use the proper API's to apply the res, or revert it.
And maybe give back -coop_fullscreen which was explicitly engaging the mode
(and capable of turning off -fullscreen flag while -noborder has no effect)
