I get this issue also during gnome-classic session, so it seems not strictly related to Unity. If I remove libgl1-dri-mesa-experimental the freeze disappear.
I never had this issue with proprietary drivers.
I get this issue also during gnome-classic session, so it seems not strictly related to Unity. dri-mesa- experimental the freeze disappear.
If I remove libgl1-
I never had this issue with proprietary drivers.