I've just started using Linux on my laptop, and I am facing some difficulties working with an external monitor. At first, I tried connecting with HDMI, but then the resolution was limited. Also the mouse pointer leaves a kind of trail when moving it, which then disappears within a few seconds after stopping movement of the mouse. I tried connecting with a DP cable, and then I get the full resolution of my external monitor, but the mouse pointer is still an issue.

Strangely, if I open display settings (and even minimize it), it is no longer an issue and the mouse pointer works fine. If I close it (or go into some other settings), the problem reappears.

What could cause this?

I'm using Ubuntu 16.04 and my graphics card is Nvidia GM107GLM [Quadro M2000M].


IMHO Linux has not yet reached point where it could be used with GUI normally, especially with nVidia cards... I had the same issue a time ago and I've set CLUTTER_PAINT=disable-clipped-redraws:disable-culling in /etc/environment and initially worked fine. Some updates after problem re-appeared. You can try to add evdi to /etc/modules and then options evdi initial_device_count=2 to /etc/modprobe.d/evdi.conf On my system this solved the issue... If you are lucky enough, it will help on your system as well... Good luck!

  • 1
    Actually, the problem got resolved when i changed from HDMI to DP. And then, later, when I tried HDMI, it worked. Probably a driver update or something. Tried using 2 remote monitors (one HDMI, one DP), but then when the computer slept one of the monitors became unresponsive. But that's a different story :p At least I have one working external monitor at the time, think I'll have stick with that.
    – Tobb
    Jun 4 '18 at 7:40

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.