I have a Titan Xp collector's edition. Since I wasn't able to find a driver on nvidia's website for Titan Xp on Ubuntu, I didn't install any driver. But now my computer screen freezes randomly sometimes and I suspect it's caused by lack of driver.

When the screen freezes, it freezes for about 10 seconds and it goes no-signal, at which point the led on my graphics card starts to blink periodically.

Has anyone experienced this before?

EDIT:
one of the answers says to use the 384 driver. However that driver doesn't work for CUDA with linux 4.13 kernel. see https://devtalk.nvidia.com/default/topic/1028904/nvidia-driver-not-loading-after-cuda-9-1-installation-with-runfile/#5234072
So I installed 390.12 as suggested in that post but I still occasionally encounter these freezes.

Right now I just want to know if this seems like a graphics card driver issue or did I not install Ubuntu correctly? Or is this a problem with firefox? Since everytime it seems to freeze when I'm using firefox (though I don't have that many samples)