i dont know when this started as i dont use discover very often, but it simply wont start.
nothing at all happens when clicking the icon, and starting it from terminal yields no output at all
Operating System: Solus 4.7
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.10.0
Qt Version: 6.8.2
Kernel Version: 6.12.12-313.current (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 9800X3D 8-Core Processor
Memory: 30.5 GiB of RAM
Graphics Processor: AMD Radeon RX 7900 XT
Manufacturer: ASUS

  • BuzzPCSOS replied to this.

  • My working one:

    org.kde.plasma.libdiscover: OdrsReviewsBackend: Fetch ratings: false
adding empty sources model QStandardItemModel(0x558afd6c1960)

    Try following:
    Be sure that all sessions are killed
    Start with a dedicated backend

    pkill discover
plasma-discover --backends packagekit-backend

    Or dedicated mode

    pkill discover
plasma-discover --mode Browsing

    I have no problems with approximately the same system settings. Also plasma with wayland....on newest updates

    Lucien_Lachance Try running

    sudo eopkg install --reinstall discover
    sudo eopkg up -y
    flatpak update -y && flatpak remove --unused -y

    That usually seems to fix it.

        Lucien_Lachance Worth a try, that is my usual fix for Discover.
        There was some general fixes for Discover mentioned here.
        Discover on my Plasma computers ran fine although I did notice that it seemed to take more CPU resources than usual. Running Intel CPU here, I wonder if it might be an AMD thing.
        Seeing if everything else is working right would be a good sanity check.

            BuzzPCSOS
            i actually already tried the stuff in that post, no change
            everything else is working as expected

              hmm seems plasma-discover was a running process, after killing it i got some output

              org.kde.plasma.libdiscover: OdrsReviewsBackend: Fetch ratings: true
adding empty sources model QStandardItemModel(0x55c29fa4dcd0)

              but still nothing happening

              My working one:

              org.kde.plasma.libdiscover: OdrsReviewsBackend: Fetch ratings: false
adding empty sources model QStandardItemModel(0x558afd6c1960)

              Try following:
              Be sure that all sessions are killed
              Start with a dedicated backend

              pkill discover
plasma-discover --backends packagekit-backend

              Or dedicated mode

              pkill discover
plasma-discover --mode Browsing

                AlphaElwedritsch hmm
                ive deleted everything related to discover from the .cache dir, as well as any config file i could find
                no change
                thanks for your help though

                  • pomon

                    • Post #10

                    And will it start that way:
                    QT_STYLE_OVERRIDE=Fusion plasma-discover or

                    QT_STYLE_OVERRIDE=""
plasma-discover

                    AlphaElwedritsch
                    hey that worked !
                    im getting this output though

                    org.kde.plasma.discover: couldn't open file "/home/USERNAME/.cache/discover/featured-5.9.json" "No such file or directory"
PackageKitBackend: No distro component found for "us.getsol.solus"
AppStreamIntegration: No distro component found for "us.getsol.solus"
qrc:/qt/qml/org/kde/discover/qml/SourcesPage.qml:11:1: QML SourcesPage: Created graphical object was not placed in the graphics scene.

                        Lucien_Lachance I know this is basic but have you tried turning it off and then back on again? Fixes so many unsolvable computer conundrums.

                            plasma-discover --backends packagekit-backend
                            i like this, seems to prevent it from checking flatpaks (which i dont use and have no interest in) AND prevents it from checking the kde store, so much faster, and none of that junk i never wanted anyway. better than it ever was

                              Lucien_Lachance Does it still fail when using the original shortcut?
                              plasma-discover --backends packagekit-backend just starts Discover without Flatpak and Firmware update functions enabled. Maybe an error on one of those two modules that was causing the original crash?
                              This weeks update incorporated a patch to prevent Flatpak failed error messages when booting. Perhaps this update was related to the crash on your system. Flatpak removal caused the error? Just thinking out loud here.

                              Half the joy of fixing is knowing what the fault was when you fix it.

                                  AlphaElwedritsch plasma-discover --backends packagekit-backend did the trick.

                                  org.kde.plasma.libdiscover: OdrsReviewsBackend: Fetch ratings: false
                                  adding empty sources model QStandardItemModel(0x5605fb514880)
                                  QObject::startTimer: Timers cannot have negative intervals
                                  qrc:/qt/qml/org/kde/discover/qml/BrowsingPage.qml:17:1: QML BrowsingPage: Created graphical object was not placed in the graphics scene.
                                  PackageKitBackend: No distro component found for "us.getsol.solus"
                                  qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
                                  qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
                                  qt.gui.imageio: libpng warning: iCCP: known incorrect sRGB profile
                                  AppStreamIntegration: No distro component found for "us.getsol.solus"

                                  Thank you very much.

                                    5 days later

                                    now it works without the backends parameter, dont know why, must have been one of the recent updates that fixed something cos i didnt do anything to make it work.
                                    ill stick with the parameters though cos i dont want flathub and stuff anyway

                                    9 days later

                                    I just found another solution on KDE forums

                                    start with following params in terminal.

                                    plasma-discover --backends packagekit,snap,fwupd,flatpak,kns