The problem seems not to be Ubuntu specific. https://bugzilla.redhat.com/show_bug.cgi?id=1696788
(I get those "Recursion depth exceeded calculating {bg,fg} color" messages too on eoan and disco. ** Bug watch added: Red Hat Bugzilla #1696788 https://bugzilla.redhat.com/show_bug.cgi?id=1696788 ** Also affects: yelp via https://bugzilla.redhat.com/show_bug.cgi?id=1696788 Importance: Unknown Status: Unknown -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-getting-started-docs in Ubuntu. https://bugs.launchpad.net/bugs/1804786 Title: Garbage occurred when Playing the video in the Ubuntu Desktop Guide Status in Yelp: Unknown Status in gnome-getting-started-docs package in Ubuntu: Confirmed Bug description: Garbage occurred when Playing the video in the Ubuntu Desktop Guide. Reproduce step 1. Ubuntu 18.04.1. 2. ubuntu-docs 18.04.4 3. Playing the video(Launch applications) from Help-->Getting started with GNOME. 4. Garbage occurred after the video repeat about 3 times==> issue. Expected results: The Video can be played normally no-matter how many times. Actual results: Garbage occurred after the video repeat about 3 times Note: 1. the video will show blank but still have the voice after the issue finish. 2. Right click the mouse and choice "save video as", this application will crashed ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: ubuntu-docs 18.04.4 ProcVersionSignature: Ubuntu 4.15.0-39.42-generic 4.15.18 Uname: Linux 4.15.0-39-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.4 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Fri Nov 23 16:46:00 2018 InstallationDate: Installed on 2018-04-30 (206 days ago) InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426) PackageArchitecture: all SourcePackage: ubuntu-docs UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/yelp/+bug/1804786/+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