I have this problem too on similar E350-based hardware.
Sometimes I get this flicker, sometimes the screen is garbled (bug #36513). When I get a garbled screen the flicker usually persists even after a reboot. (Though this never happens in windows so I don't think it's a hardware issue.)
I have this problem too on similar E350-based hardware.
Sometimes I get this flicker, sometimes the screen is garbled (bug #36513). When I get a garbled screen the flicker usually persists even after a reboot. (Though this never happens in windows so I don't think it's a hardware issue.)