Tim Woodall <debianu...@woodall.me.uk> writes: > For a while I was using a mac (running macOS) plugged into a dock with > two HDMI screens connected and I was having this problem occasionally. > The mac was clearly thinking the screens had "gone away" because it > would move windows around. I've now switched to a windows laptop, same > dock, same cables, same monitors and the problem has gone away.
So this may be a driver issue in macOS and Linux kernel.
