Every few seconds the entire screen flickers. This began after updates over the weekend (30-31 August). The machine is a Toshiba Satellite P200D, 2GB, AMD Turion 64X2 running Xubuntu 14.04.
Things I've tried:
- Restart and cold start.
- Display compositing ON or OFF makes no difference.
- Screen refresh is 60 Hz, I get no alternatives to this on the pull down.
(Note: If I set resolution to any non-native size screen refresh sets itself to 59.8 Hz.) - After reading forums I tried installing compton and typing
compton --vsync opengl. No effect.
