For those who may be interested, when a too long freeze occurs I go to a console mode (ctrl+alt+F1) and then go back to the graphical session (ctrl+alt+F7). This process always stops the freeze for me until now.
For those who may be interested, when a too long freeze occurs I go to a console mode (ctrl+alt+F1) and then go back to the graphical session (ctrl+alt+F7). This process always stops the freeze for me until now.