Hi Yves-Alexis,
This is just to let you know that the workaround reported by John Franklin on 22 June works for me too. That is, since adding this *.conf file, I haven't seen the buggy behaviour anymore: /etc/X11/xorg.conf.d/20-intel.conf Section "Device" Identifier "Intel Graphics" Driver "intel" EndSection I'm running a fresh install of Buster with XFCE (xfce4 + goodies) on a Thinkpad X220 (Intel HD 3000 graphics). I hope it helps at least a little in isolating the problem.
