Hey, thanks for pointing that out, took me a while to understand what you meant by a "flat acceleration profile", then I found out you're referring to mouse acceleration in Gnome desktop. I tried to disable the acceleration on my system however no luck, the mouse did slow down so the change did make effect but the issue with GW2 remains. Could you please share some more info about your system such as distro name (and version) and which GPU you're running? I can try to replicate it on my systems. :) Hi, I am running Ubuntu 19.04, nvidia Gtx1070 with 430.xx driver, however I was wrong about fixing this issue. I have been so happy to actually find some solution as a novice Linux user and did not tested the thing properly. I have alt+tab out to write this post and the issue is come back. If you can just delete my post is could be good I don`t wanna misleading anyone. I am sorry about that.