This is a GTK+ bug, fixed by https://git.gnome.org/browse/gtk+/commit/?id=64521345b9480cce.
I will backport it to Xenial. ** Package changed: nautilus (Ubuntu) => gtk+3.0 (Ubuntu) ** Changed in: gtk+3.0 (Ubuntu) Status: Confirmed => Fix Released ** Also affects: gtk+3.0 (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: gtk+3.0 (Ubuntu Xenial) Assignee: (unassigned) => Dmitry Shachnev (mitya57) -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to nautilus in Ubuntu. https://bugs.launchpad.net/bugs/1562002 Title: Nautilus: lag after choosing action in top right menu Status in gtk+3.0 package in Ubuntu: Fix Released Status in gtk+3.0 source package in Xenial: Confirmed Bug description: choosing action like New Tab, New Folder, Select Items Matching, will make nautilus lag (unresponsive) ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: nautilus 1:3.18.4.is.3.14.3-0ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-15.31-generic 4.4.6 Uname: Linux 4.4.0-15-generic x86_64 ApportVersion: 2.20-0ubuntu3 Architecture: amd64 CurrentDesktop: GNOME Date: Fri Mar 25 20:52:21 2016 GsettingsChanges: b'org.gnome.nautilus.window-state' b'geometry' b"'890x550+685+36'" InstallationDate: Installed on 2016-03-24 (1 days ago) InstallationMedia: Ubuntu-GNOME 16.04 LTS "Xenial Xerus" - Beta amd64 (20160323.1) SourcePackage: nautilus UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtk+3.0/+bug/1562002/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp