Launching Chrome or Chromium causes KDE logout on Debian testing
So have had Chromium installed for months and months. Don't use it very often, once in a while (I still prefer Firefox/Iceweasel). So I tried launching it today, and my session logged me out back to the KDM login screen. I thought nothing of it, so logged back in, and tried again, and same thing. So did an apt-get purge chromium && apt-get autoremove --purge, deleted my .config/chromium folder, deleted the chromium packages from /var/cache/apt/archive and reinstalled. Same thing. So I tried downloading the actual Google Chrome and installed that, and it ALSO does the same thing.
Since it's logging me out, even launching it from a terminal doesn't give me any information, since said terminal closes when it logs me out.
Anyone seen this and have any ideas?