After some investigation, I think it might be linked to nspluginwrapper, especially while using it to view some flash animation in firefox, or maybe too to watch pdf inside firefox with acrobat reader
-- Black screen but everything still work https://bugs.launchpad.net/bugs/123283 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs