Hi
I use Debian 9 Stretch with MATE desktop on Dell Latitude, and I have very weird problem. Sometimes, when I open terminal (no matters which terminal, both on MATE terminal or Xterm) and start to enter data or hit shortcut, screen flickrs for a moment. It is very random behavior. Sometimes, it flickers infinitely, so I must to reboot. I checked and replace HDMI cable to my monitor, tried to work only on laptop, without additional monitor, and many others hardware solutions, but it haven't helped. I have also Windows installed on my machine, and on that system such problems doesn't occur. I have got newest xserver-xorg-video-intel installed.
EDIT: such thing happens also when I use Pluma editor.
Does anyone know what it is?