Entraide GNU/Linux

I had no issues with this yesterday (Friday, 2016-06-24)
But today (Saturday, 2016-06-24), my screen starts to flash.

It happens about once every 1/2 second in irregular frequency. Every flash is overlapping the desktop background with the game.
Sometimes it stops for up to 4 minutes.

My software:
I play in full-screen on Manjaro (A derivate of Arch Linux) 64 bit.
The game was installed with steam.
I have recently installed many system updates too, but this was Thursday (2 days ago).

I already tried:
Restarting the client.
Starting the game without steam.
Restarting the system.
Verifiying local files with the steam UI.

Nothing did help or bring any results.

One of the system updates might of broke it. Compositing window manager might affect it.
Long shot, but you could try turning on/off vsync in game.

Thanks for the reply, but vsync does not help. I try to look at the compositing manager, but I have only little hope here.