On Fri, 5 Aug 2016 16:04:34 -0700
Rick Stevens wrote:
Another example: If I edit a file and change something in vi in an
Xterm...the display flickers between what I just edited and what it
looked like before the change. Again, clicking in another window makes
it stop.
Sounds somewhat like this bug which went away for me when I
installed an nvidia card and no longer used the motherboard's
intel graphics support:
https://bugs.freedesktop.org/show_bug.cgi?id=97074