I just installed a fresh Ubuntu (Cosmic Cuttlefish 18.10) into a fresh (empty) 1TB disk drive, and man... I can't even login into the user, typing takes some time to refresh on the screen, and sometimes the keys are inputed more than once (Figured this later)

When I finally could login typing the password 1 key by 1 key I noticed that this also happens with the mouse, it allows input for few milliseconds and then stops, so I need to lift he move and move it again it's not lag (I expected that eventually the pointer moves what I moved on the mouse later, but it didn't)

When trying to search for answers in Firefox doing a quick Ctrl+n (new Tab) the keys (input) would stick so It would open like 10-15 new tabs, the same for closing (Ctrl+W)

And searching (typing on the search bar) would do the same... "Slllllllllllow Ubunnnnnnnnnntu" so it was extremely impossible to even work with/on it.

It's a gaming PC so I figured it would be something about GNOME or nouveau drivers vs NVIDIA, it's a NVIDIA GTX 1060 (6GB)

I doubt it something else like memory leak, RAM or CPU processing, since it's a fresh install.

Any idea on how to troubleshoot?

  • 1
    You need to install Nvidia drivers.
    – user880592
    Nov 12, 2018 at 21:30

1 Answer 1


Try logging in from another console with ctrl + alt + F1. It'll be the same user & password you created during install. Is your input still lagged in a separate console?

Try looking for anything eating up memory or processors with top ctrl + c to exit

While you're there, do sudo apt update && sudo apt upgrade

You can switch back to an xserver with ctrl + alt + F7

If that doesn't solve the problem, I would probably try the install again, just to see if something went wrong with that.

You must log in to answer this question.

Not the answer you're looking for? Browse other questions tagged .