How To Disable VSync For GLXGears In AMD Graphics Card ?

Abhishek Rawal · 2014-10-30T16:00:46+00:00

I wanted to test fps in my Radeon graphics card using glxgears. Using: fgl_glxgears Using vanilla glxgears : You can see in both output, the fps is stucked around 60fps. That is because it is getting synced to display frequency. I want to test my gfx fps, which I think can only be done by disabling Vsync. I checked amdcccle (Catalyst Center) & couldn't find option to disable it. Does anyone with AMD gfx card knows method to disable Vsync ? Urgent help needed plz.

How To Disable VSync For GLXGears In AMD Graphics Card ?

Abhishek Rawal
@abhishek-fg9tRh

Updated: Oct 30, 2014

Views: 1.4K

I wanted to test fps in my Radeon graphics card using glxgears.

Using:
fgl_glxgears

Using vanilla glxgears :

You can see in both output, the fps is stucked around 60fps. That is because it is getting synced to display frequency.
I want to test my gfx fps, which I think can only be done by disabling Vsync. I checked amdcccle (Catalyst Center) & couldn't find option to disable it.

Does anyone with AMD gfx card knows method to disable Vsync ?

Urgent help needed plz.

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Abhishek Rawal

Member • Oct 30, 2014

Goddamnit! anyone ?

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Kaustubh Katdare

Administrator • Oct 30, 2014

#-Link-Snipped-# , over to you, sire?

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Prasad Ajinkya

Member • Oct 30, 2014

tried
vblank_mode=0
?

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Abhishek Rawal

Member • Oct 30, 2014

Prasad Ajinkya
tried
vblank_mode=0
?
Tried. same result.
Is there anyway to tweak it from catalyst center ?

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Abhishek Rawal

Member • Nov 28, 2014
Finally, found the way & it's pretty simple.

Open AMD Catalyst Control Center in superuser mode
```
sudo amdcccle
```
Now, Under '3D' -> 'More Settings' Drag Vertical Refresh from 'Quality' to 'Performance' as shown in image below.

Check glxgears and/or glmark2 to test fps score and/or gl benchmark respectively.

Hope this helps to anyone who had same problem as me in testing gpu fps & openGL benchmarking.
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