Hello!
I installed Trisquel for 3D work and I'm using double monitor set-up.
I'm having issues with screen tearing (like when vsync don't work in games).
The problem shows up when I move windows around, when scrolling content up
and down, when watching videos etc.
Related visual issues:
The cursor pointer sometimes remain visually on one monitor while I'm on the
other (moving back it disappears).
The system opening fade-in effect is choppy and the same does the closing
fade-out effect.
In Blender, the color picker is laggy and the 3D view tears when looking
around the 3D model.
Other things that may be related:
When typing in gedit, the CPU usage rises very fast and holds there even when
I'm not typing anymore. But when I save the file or just move a window a
little bit, the CPU drops back down. I figured out that the processes that
eat my CPU are the ibus ones: ibus-daemon, ibus-engine-sim and ibus-x11
mostly. But I can't figure out what they are.
When I type python code, it gets even worse and the keyboard becomes not
responsive.
I'm using the LTS kernel, linux-libre64-4.1. I tried the newest one but it
was the same.
My video card is an nVidia GeForce GTX 750 Ti.
If you need specific info, ask me and I'll provide.
Thank you all very much!