G-Sync/FreeSync Does Not Work on Vulkan

[leonardo-pml]

When changing the graphics API to Vulkan I noticed that Freesync stopped working. The refresh rate remains fixed at 180hz even with the FPS at 120, however when using DirectX Freesync works correctly, with the same 120 FPS the screen refresh rate remains equivalent to close to 120Hz. I would like to use Vulkan because the game works with better performance but the fact that Freesync does not work greatly hinders the issue of fluidity.
I will attach photos showing that the screen remains at a fixed refresh rate using Vulkan.

Vulkan :


Directx :

 

[monstobusta]

Whoops, somehow didn't find this when making my own report of this exact issue. I guess it's because I made a really convoluted title.

Thread 'Enabling V-Sync, NVIDIA G-Sync, and NVIDIA Reflex all together does not induce the frame limiter on Vulkan'

Aug 30, 2025

ISSUE: when following the recommended video settings as shown by the CS2 steam support page (https://help.steampowered.com/en/faqs/view/418E-7A04-B0DA-9032#reflex), the intended effects only work on D3D11 and not Vulkan.

This can be shown when following the same methods on both D3D11 and Vulkan, namely turning on vsync and then reflex ingame while having gsync on in the NVidia control panel.
For reference, my monitor has a refresh rate of 165 hz, and has FreeSync Premium. Since I am using an NVidia GPU, this means that my monitor is merely G-Sync compatible, not actually G-Sync if...

• monstobusta
• Replies: 2
• Forum: Bug Reports

 

[leonardo-pml]

Whoops, somehow didn't find this when making my own report of this exact issue. I guess it's because I made a really convoluted title.

Thread 'Enabling V-Sync, NVIDIA G-Sync, and NVIDIA Reflex all together does not induce the frame limiter on Vulkan'

Aug 30, 2025

ISSUE: when following the recommended video settings as shown by the CS2 steam support page (https://help.steampowered.com/en/faqs/view/418E-7A04-B0DA-9032#reflex), the intended effects only work on D3D11 and not Vulkan.

This can be shown when following the same methods on both D3D11 and Vulkan, namely turning on vsync and then reflex ingame while having gsync on in the NVidia control panel.
For reference, my monitor has a refresh rate of 165 hz, and has FreeSync Premium. Since I am using an NVidia GPU, this means that my monitor is merely G-Sync compatible, not actually G-Sync if...

• monstobusta
• Replies: 2
• Forum: Bug Reports

Almost a year after my report on Gsync and Vulkan, nothing has been fixed yet. I hope this is fixed by the release.