HI I've had this a few times now but i can't reproduce at will. The first time i experienced it was when i was using Vivaldi a few weeks ago, as soon as it loaded to full screen, the whole screen flashed on and off about 10 times (too fast to count) and every program after that did the same thing when loading or context switching to another program. I just put that down to bugs in vivavldi causing issues because it still a development project. It only happened twice. But i had the same thing yesterday on a different user (many system reboots later) and i hadn't used vivaldi at all. The only way to clear it was to log out and back in again. Any thoughts ? regards Ian -- To unsubscribe, e-mail: opensuse-factory+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse-factory+owner@opensuse.org