I'm not able to reproduce this bug anymore since the final 19.10 release. Video works fine now, both in mpv and gnome-mpv.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to gnome-shell in Ubuntu. https://bugs.launchpad.net/bugs/1828697 Title: Volume and brightness OSD make full-screen video flicker once they disappear Status in gnome-shell package in Ubuntu: Confirmed Bug description: Steps: 1. Open a video in Totem, MPV or YouTube 2. Make the video full-screen 3. Press the keyboard keys to change volume or brightness to show an OSD 4. Notice the video flicker ONCE the OSD disappears (as if it destroys the graphics behind it for a second) 5. Keep trying to show an OSD, changing volume or brightness, until you see the bug because sometimes it doesn't happen the first time and not consistently ProblemType: Bug DistroRelease: Ubuntu 18.04 Package: gnome-shell 3.28.3+git20190124-0ubuntu18.04.2 ProcVersionSignature: Ubuntu 4.18.0-18.19~18.04.1-generic 4.18.20 Uname: Linux 4.18.0-18-generic x86_64 ApportVersion: 2.20.9-0ubuntu7.6 Architecture: amd64 CurrentDesktop: ubuntu:GNOME Date: Sun May 12 00:14:04 2019 DisplayManager: gdm3 InstallationDate: Installed on 2018-11-29 (163 days ago) InstallationMedia: Ubuntu 18.04.1 LTS "Bionic Beaver" - Release amd64 (20180725) SourcePackage: gnome-shell UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1828697/+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