totem doesn't detect newly installed gstreamer plugin

[Douglas Silva]

So you just installed Ubuntu 22.04 and you try to play an mp4 video. Totem will complain about missing an H.264 decoder, as you can see in the command line output:

Missing plugin: gstreamer|1.0|totem|decodificador H.264 (Main Profile)|decoder-video/x-h264, level=(string)3, profile=(string)main (decodificador H.264 (Main Profile))

You will now install gstreamer1.0-libav and try again, but it will still fail with the same complaint.

The solution, as others have found (https://askubuntu.com/a/407595/818746), is:

$ rm -rf ~/.cache/gstreamer-1.0/

I suppose that is a bug.

ProblemType: Bug
DistroRelease: Ubuntu 22.04
Package: libgstreamer1.0-0 1.20.1-1
ProcVersionSignature: Ubuntu 5.15.0-37.39-generic 5.15.35
Uname: Linux 5.15.0-37-generic x86_64
ApportVersion: 2.20.11-0ubuntu82.1
Architecture: amd64
CasperMD5CheckResult: pass
CurrentDesktop: ubuntu:GNOME
Date: Thu Jun 9 08:06:35 2022
InstallationDate: Installed on 2022-06-09 (0 days ago)
InstallationMedia: Ubuntu 22.04 LTS "Jammy Jellyfish" - Release amd64 (20220419)
SourcePackage: gstreamer1.0
UpgradeStatus: No upgrade log present (probably fresh install)
XorgLog: Error: [Errno 2] Arquivo ou diretório inexistente: '/var/log/Xorg.0.log'