When it's only Chrome that is frozen that would usually be a Chrome bug. And we don't support Chrome on this site sorry.
Next time another window freezes please let us know which app it is. If it's all of them then most likely that would be a gnome-shell crash and you should then follow https://wiki.ubuntu.com/Bugs/Responses#Missing_a_crash_report_or_having_a_.crash_attachment ** Package changed: xorg (Ubuntu) => ubuntu ** Changed in: ubuntu Status: New => Incomplete ** Tags added: nvidia -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1936919 Title: Some windows sometimes freeze To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/1936919/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp