Theme won't launch: `MediaPlayer/VideoPlayer/Playlist is not a type`

[mihawk90]

So this theme (and my modifications to it) used to work perfectly fine for years. I recently re-installed Fedora KDE 40 (as an upgrade from 39) and now I can't get it to work anymore. I checked out the master branch to make sure it's not one of my modifications, but no dice.

I'm getting 3 different errors - seemingly randomly - on each launch, I guess it's just a race which property is initialised first.

Anyway, here some infos about the system:

 ~/Development/aerial-sddm-theme   master  git show | head -n1
commit 92b85ec7d177683f39a2beae40cde3ce9c2b74b0

 ~/Development/aerial-sddm-theme   master  sudo dnf install git qt5-qtgraphicaleffects qt5-qtquickcontrols gstreamer1-libav
[sudo] password for tarulia: 
Last metadata expiration check: 0:06:12 ago on Sun 20 Oct 2024 16:07:44 CEST.
Package git-2.47.0-1.fc40.x86_64 is already installed.
Package qt5-qtgraphicaleffects-5.15.15-1.fc40.x86_64 is already installed.
Package qt5-qtquickcontrols-5.15.15-1.fc40.x86_64 is already installed.
Package gstreamer1-plugin-libav-1.24.8-1.fc40.x86_64 is already installed.
Dependencies resolved.
Nothing to do.
Complete!

 ~/Development/aerial-sddm-theme   master  dnf list installed sddm
Installed Packages
sddm.x86_64                                           0.21.0-4.fc40                                            @anaconda

And the errors:

 ~/Development/aerial-sddm-theme   master  sddm-greeter --test-mode --theme .
Socket error:  "QLocalSocket::connectToServer: Invalid name"
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:157:5: MediaPlayer is not a type 
         property MediaPlayer currentPlayer: mediaplayer1 
         ^
Fallback to embedded theme
^CSignal received: SIGINT

 ✘  ~/Development/aerial-sddm-theme   master  sddm-greeter --test-mode --theme .
Socket error:  "QLocalSocket::connectToServer: Invalid name"
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:70:5: VideoOutput is not a type 
         VideoOutput { 
         ^
Fallback to embedded theme
^CSignal received: SIGINT

 ✘  ~/Development/aerial-sddm-theme   master  sddm-greeter --test-mode --theme .
Socket error:  "QLocalSocket::connectToServer: Invalid name"
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
Fallback to embedded theme
Loading file:./Main.qml...
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
file:///home/tarulia/Development/aerial-sddm-theme/Main.qml:63:19: Playlist is not a type 
             playlist: Playlist { 
                       ^
Fallback to embedded theme
^CSignal received: SIGINT

It's possible this is a Qt5 -> Qt6 issue since this seems to be a Qt6 build:

 ~/Development/aerial-sddm-theme   master  ll /usr/bin | grep sddm
-rwxr-xr-x.  1 root root     605K Mar 20  2024 sddm
lrwxrwxrwx.  1 root root       16 Mar 20  2024 sddm-greeter -> sddm-greeter-qt6
-rwxr-xr-x.  1 root root     2.8M Mar 20  2024 sddm-greeter-qt6
-rwxr-xr-x.  1 root root      29K Oct  3 02:00 sddmthemeinstaller

Whereas F39 was seemingly Qt5:

dnf repoquery -l sddm.x86_64 --releasever=39 | grep greeter
Last metadata expiration check: 0:01:33 ago on Mon 21 Oct 2024 17:29:10 CEST.
/etc/pam.d/sddm-greeter
/usr/bin/sddm-greeter
/usr/share/man/man1/sddm-greeter.1.gz

But there don't seem to be any Qt6 modules of the same name:

 ~/Development/aerial-sddm-theme   master  sudo dnf install git qt6-qtgraphicaleffects qt6-qtquickcontrols gstreamer1-libav
[sudo] password for tarulia: 
Last metadata expiration check: 0:15:51 ago on Sun 20 Oct 2024 16:07:44 CEST.
Package git-2.47.0-1.fc40.x86_64 is already installed.
No match for argument: qt6-qtgraphicaleffects
No match for argument: qt6-qtquickcontrols
Package gstreamer1-plugin-libav-1.24.8-1.fc40.x86_64 is already installed.
Error: Unable to find a match: qt6-qtgraphicaleffects qt6-qtquickcontrols

Not sure where to go from here since I'm not too familiar with Qt

From what I can tell MediaPlayer should be part of QtMultimedia:
https://doc.qt.io/qt-6/qml-qtmultimedia-mediaplayer.html

But that is installed:

 ~/Development/aerial-sddm-theme   master  dnf list installed "qt6-*"
Installed Packages
qt6-filesystem.x86_64                                             6.7.2-2.fc40                                  @updates
qt6-qt5compat.x86_64                                              6.7.2-1.fc40                                  @updates
qt6-qtbase.x86_64                                                 6.7.2-6.fc40                                  @updates
qt6-qtbase-common.noarch                                          6.7.2-6.fc40                                  @updates
qt6-qtbase-gui.x86_64                                             6.7.2-6.fc40                                  @updates
qt6-qtbase-mysql.x86_64                                           6.7.2-6.fc40                                  @updates
qt6-qtconnectivity.x86_64                                         6.7.2-1.fc40                                  @updates
qt6-qtdeclarative.x86_64                                          6.7.2-2.fc40                                  @updates
qt6-qtimageformats.x86_64                                         6.7.2-1.fc40                                  @updates
qt6-qtlocation.x86_64                                             6.7.2-1.fc40                                  @updates
qt6-qtmultimedia.x86_64                                           6.7.2-1.fc40                                  @updates
qt6-qtnetworkauth.x86_64                                          6.7.2-1.fc40                                  @updates
qt6-qtpdf.x86_64                                                  6.7.2-1.fc40                                  @updates
qt6-qtpositioning.x86_64                                          6.7.2-1.fc40                                  @updates
qt6-qtquick3d.x86_64                                              6.7.2-3.fc40                                  @updates
qt6-qtquicktimeline.x86_64                                        6.7.2-1.fc40                                  @updates
qt6-qtremoteobjects.x86_64                                        6.7.2-1.fc40                                  @updates
qt6-qtsensors.x86_64                                              6.7.2-1.fc40                                  @updates
qt6-qtserialport.x86_64                                           6.7.2-1.fc40                                  @updates
qt6-qtshadertools.x86_64                                          6.7.2-1.fc40                                  @updates
qt6-qtspeech.x86_64                                               6.7.2-1.fc40                                  @updates
qt6-qtspeech-flite.x86_64                                         6.7.2-1.fc40                                  @updates
qt6-qtspeech-speechd.x86_64                                       6.7.2-1.fc40                                  @updates
qt6-qtsvg.x86_64                                                  6.7.2-1.fc40                                  @updates
qt6-qttools.x86_64                                                6.7.2-1.fc40                                  @updates
qt6-qttools-common.noarch                                         6.7.2-1.fc40                                  @updates
qt6-qttools-libs-designer.x86_64                                  6.7.2-1.fc40                                  @updates
qt6-qttools-libs-help.x86_64                                      6.7.2-1.fc40                                  @updates
qt6-qttranslations.noarch                                         6.7.2-1.fc40                                  @updates
qt6-qtvirtualkeyboard.x86_64                                      6.7.2-1.fc40                                  @updates
qt6-qtwayland.x86_64                                              6.7.2-4.fc40                                  @updates
qt6-qtwebchannel.x86_64                                           6.7.2-1.fc40                                  @updates
qt6-qtwebengine.x86_64                                            6.7.2-1.fc40                                  @updates
qt6-qtwebsockets.x86_64                                           6.7.2-1.fc40                                  @updates
qt6-qtwebview.x86_64                                              6.7.2-1.fc40                                  @updates
qt6-srpm-macros.noarch                                            6.7.2-2.fc40                                  @updates

[3ximus]

Hello there, thanks for the detailed report. However I'm not maintaining this theme anymore. I don't know about QT6 support, you'll have to figure it out by yourself. Someone else has already reported the same and apparently managed to get it working: #49

[mihawk90]

Ah, that issue didn't pop up for me 🤔

Anyway, not sure what they mean with "greeter in test mode". If that's --test-mode then that's not working for me as seen in the logs.
Non-test-mode didn't work either though, i.e. just using it as the sddm theme (which is why I ran it in test mode to begin with).

But regardless, sad it's not maintained amymore but I understand priorities change 👍