I have been using Fedora 34 Jam for a couple months now, and have noticed that Discover only displays Flatpaks. Hence, I have only been using dnf to install software from the command line. Is there some way I can make Discover work correctly? Please note that another post (cmstar/mapcrafter) was made on this topic in December, but there was no subsequent discussion that I saw.
Will appreciate the help.
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Yes, You can enable the other repositories by clicking settings and the choose your repo to show all applications.
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Yes, the repos have been enabled as you have indicated. However, nothing appears in the application descriptions except flatpaks, so I am at a loss as far as installing rpms via Discover. That is, unless I use dnf or dnfdragora. Updates work, however. Have you any ideas of what is going wrong?
Ok, thatâs occurred.
But a few checks you can try:
Make Sure the repository are selected and set as default.
Make Sure about gpg key signature.
Try update the system via terminal.
I tested it via my main system as well as VM (Testing Repo), in both that works flawlessly.
Can you please run this application via terminal by typing âplasma-discoverâ and show/debug the log.
The appropriate repositories have been selected and set as default. I have no problems updating the system via terminal (i.e., sudo dnf upgrade --refresh). I donât know how to check the gpg key signature, but will be glad to if you tell me how. I ran "plasma-discoverâ via terminal, and tried to see applications a bit, and then closed the Discover window. The log in the terminal is as follows:
[astauss@fedora ~]$ plasma-discover
kf.newstuff.core: The CustomName property is deprecated and will be removed in KF6
invalid kns backend! â/usr/share/knsrcfiles/servicemenu.knsrcâ because: âConfig group not found! Check your KNS3 installation.â
kf.newstuff.core: The ChecksumPolicy feature is defunct
kf.newstuff.core: The SignaturePolicy feature is defunct
kf.newstuff.core: The ChecksumPolicy feature is defunct
kf.newstuff.core: The SignaturePolicy feature is defunct
adding empty sources model QStandardItemModel(0x562a28aac8c0)
org.kde.plasma.libdiscover: Couldnât find a category for âfwupd-backendâ
file:///usr/lib64/qt5/qml/org/kde/kirigami.2/private/PrivateActionToolButton.qml:74:5: QML Binding: Binding loop detected for property âvalueâ
qrc:/qml/ApplicationsListPage.qml:16:1: QML ApplicationsListPage: Binding loop detected for property âimplicitHeightâ
kf.kirigami: The Theme singleton is deprecated (since 5.39). Import Kirigami 2.2 or higher and use the attached property instead.
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
[astauss@fedora ~]$
Your statement that Discover works flawlessly, both on your main system and on a VM brought to mind another detail. I have two computers that do this, and I installed the Fedora 34 Jam Spin on both of them from the iso. It may be possible we have a packaging issue on this iso?
Please let me know what you think about a solution. And thank you so much for the help!
Ok Ok.
Lets do some modification in your config.
In terminal(as user),
Step 1: Type ânano $HOME/.config/mimeapps.listâ
Step 2: Find [Default Applications] section.
Step 3 : Add bellow lines,
x-scheme-handler/appstream=org.kde.discover.desktop
application/x-rpm=org.kde.discover.desktop
application/vnd.flatpak=org.kde.discover.desktop
application/vnd.flatpak.repo=org.kde.discover.desktop
application/vnd.flatpak.ref=org.kde.discover.desktop
Save the file and reboot.
Then Open plasma-discover and see if the result showing as bellow.
Thanks.
Thanks, Roy, but I modified the file as you indicated, and I rebooted, but I still only see flatpaks displayed in Discover. Here is the file with modifications (just in case I messed up something)
[Default Applications]
x-scheme-handler/http=firefox.desktop
x-scheme-handler/https=firefox.desktop
x-scheme-handler/chrome=firefox.desktop
text/html=firefox.desktop
application/x-extension-htm=firefox.desktop
application/x-extension-html=firefox.desktop
application/x-extension-shtml=firefox.desktop
application/xhtml+xml=firefox.desktop
application/x-extension-xhtml=firefox.desktop
application/x-extension-xht=firefox.desktop
x-scheme-handler/appstream=org.kde.discover.desktop
application/x-rpm=org.kde.discover.desktop
application/vnd.flatpak=org.kde.discover.desktop
application/vnd.flatpak.repo=org.kde.discover.desktop
application/vnd.flatpak.ref=org.kde.discover.desktop
And here are my results when using Discover:
[astauss@fedora ~]$ plasma-discover
kf.newstuff.core: The CustomName property is deprecated and will be removed in KF6
invalid kns backend! â/usr/share/knsrcfiles/servicemenu.knsrcâ because: âConfig group not found! Check your KNS
3 installation.â
kf.newstuff.core: The ChecksumPolicy feature is defunct
kf.newstuff.core: The SignaturePolicy feature is defunct
kf.newstuff.core: The ChecksumPolicy feature is defunct
kf.newstuff.core: The SignaturePolicy feature is defunct
adding empty sources model QStandardItemModel(0x5633f7a9c3f0)
org.kde.plasma.libdiscover: Couldnât find a category for âfwupd-backendâ
file:///usr/lib64/qt5/qml/org/kde/kirigami.2/private/PrivateActionToolButton.qml:74:5: QML Binding: Binding loo
p detected for property âvalueâ
qrc:/qml/ApplicationsListPage.qml:16:1: QML ApplicationsListPage: Binding loop detected for property âimplicitH
eightâ
kf.kirigami: The Theme singleton is deprecated (since 5.39). Import Kirigami 2.2 or higher and use the attached
property instead.
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
qrc:/qml/ApplicationsListPage.qml:126: TypeError: Cannot read property âapplicationâ of null
[astauss@fedora ~]$ ^C
[astauss@fedora ~]$
Have you any other suggestions?
Many thanks for your help with this!
Iâm not sure who I have to thank for this, but I just had something interesting happen. After undoing Royâs suggestions above, I went on doing all of my software management from the command line for the last twelve days or so. Today, just for the heck of it, I opened Discover and, lo and behold (!), it works correctly, displaying software from all enabled repositories. Undoubtedly, an update did the trick, but I have no specific idea about the source of my good fortune. Many thanks to whomever, and consider this thread closed!