I'm not at the kiosks now and can't run apt-cache, but I did run ldd earlier, and can report that for the Chromium binary (/usr/lib/chromium- browser/chromium-browser) ldd reports libffmpeg.so as not found. That's why the shell script /usr/bin/chromium-browser sets LD_LIBRARY_PATH=/usr/lib/chromium-browser before executing the binary. That allows libffmpeg.so to be located for regular users, but not for guest users -- as I noted, I think that's because of the interaction of the AppArmor "Cx" setting for Chromium, which causes the environment variables to be scrubbed just before the binary is executed. That's my guess, anyway.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1718885 Title: chromium doesn't start in guest session (xubuntu 16.04) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/chromium-browser/+bug/1718885/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
