Thanks, installing libqt5libqgtk2 brought most of the icons back. Not all of them, but at least the important ones.
E.g. in dolphin, the icons in the places bar for "Root", all of the "Recently saved" entries and in the "Search for" part the icons for "Documents", "Images" and "Audio Files" are still missing. For them, dolphin still reports the "QPixmap::scaled: Pixmap is a null pixmap" message. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to qtbase-opensource-src in Ubuntu. https://bugs.launchpad.net/bugs/1509562 Title: no icons for menu, folders, directories, files Status in dolphin package in Ubuntu: Confirmed Status in kate package in Ubuntu: Confirmed Status in konsole package in Ubuntu: Confirmed Status in qtbase-opensource-src package in Ubuntu: New Bug description: no icons for menu, folders, directories, files I am using Xubuntu 15.10 as the Guest in Virtualbox 5.0.8 r103449. This happened after a recent Xubuntu update. Info: $ apt-cache policy dolphin dolphin: Installed: 4:15.08.2-0ubuntu1 Candidate: 4:15.08.2-0ubuntu1 Version table: *** 4:15.08.2-0ubuntu1 0 500 http://mirror.cogentco.com/pub/linux/ubuntu/ wily/universe amd64 Packages 100 /var/lib/dpkg/status ProblemType: Bug DistroRelease: Ubuntu 15.10 Package: dolphin 4:15.08.2-0ubuntu1 ProcVersionSignature: Ubuntu 4.2.0-16.19-generic 4.2.3 Uname: Linux 4.2.0-16-generic x86_64 ApportVersion: 2.19.1-0ubuntu3 Architecture: amd64 Date: Fri Oct 23 17:35:08 2015 InstallationDate: Installed on 2015-06-01 (144 days ago) InstallationMedia: Xubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150521) ProcEnviron: LANGUAGE=en_US TERM=xterm PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: dolphin UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dolphin/+bug/1509562/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp