I faced the same issue on a Dell Inspiron 14 N4050 but the freezes became less frequent after i switched to OpenGL 3.1 but in a couple of days my system became so slow that i had to get rid of plasma 5.
I faced the same issue on a Dell Inspiron 14 N4050 but the freezes became less frequent after i switched to OpenGL 3.1 but in a couple of days my system became so slow that i had to get rid of plasma 5.