I've been suffering the same issue. Plasma crashes every time my 4K monitor sleeps or is turned off in Kubuntu 15.10. I had to pull in Qt 5.5 and this patch to make my desktop usable.
I've been suffering the same issue. Plasma crashes every time my 4K monitor sleeps or is turned off in Kubuntu 15.10. I had to pull in Qt 5.5 and this patch to make my desktop usable.