As attach chromium-browser valgrind.log I don't see there anything important, but maybe it will help to investigate bug
** Attachment added: "valgrind.log" https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1225985/+attachment/3824804/+files/valgrind.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1225985 Title: gnome-shell uses over 300% CPU most the time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1225985/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs