Debian 11 で KDE Plasma デスクトップを使用する際に、いくつかのランダムな問題が発生しました。
次のポップアップが表示され続けます。
Server Authentication -- Plasma
The server failed the authenticity check (i.scdn.co).
The issuer certificate of a locally looked up certificate could not be found
[詳細]をクリックすると、KDEデスクトップ全体がクラッシュするため、クリックできません。数分ごとにポップアップし続けます。
「続行」をクリックしてサーバーを信頼するかどうかを尋ねるメッセージが表示されたら、このセッションをクリックするだけで、新しいプラズマセッションが開始されるまでエラーは再び表示されません。
Journalctlはポップアップのおおよその時間を記録します。
Apr 22 13:01:50 host dbus-daemon[958]: [session uid=1000 pid=958] Activating service name='org.kde.ksystemstats' requested by ':1.115' (uid=1000 pid=10455 comm="/usr/bin/plasmashell ")
Apr 22 13:01:52 host dbus-daemon[958]: [session uid=1000 pid=958] Successfully activated service 'org.kde.ksystemstats'
Apr 22 13:01:53 host dbus-daemon[958]: [session uid=1000 pid=958] Activating service name='org.kde.KSplash' requested by ':1.115' (uid=1000 pid=10455 comm="/usr/bin/plasmashell ")
Apr 22 13:02:52 host org.kde.KSplash[10481]: org.kde.knotifications: WaitForName: Service was not registered within timeout
Apr 22 13:02:52 host dbus-daemon[958]: [session uid=1000 pid=958] Activated service 'org.kde.KSplash' failed: Process org.kde.KSplash exited with status 1
i.scdn.coのWhois結果はSpotifyに登録されているようで、Spotifyアプリ（PPAリポジトリを介してインストールされています）があります。
しばらくこのシステムでSpotifyを使用してきましたが、なぜ突然これが起こるのかわかりません。
何が起こっているのか知っている人はいますか？
修正する:
エラーポップアップを特定のタスクに分割しました。 SpotifyアプリケーションをKDEタスクバーに固定しました。アイコンの上にマウスを置くと、Plasmaはすぐにポップアップを生成し、すべてのボタンがPlasmaとクラッシュします。奇妙なことに、Alt-Tabを使用してSpotifyを使用すると競合は発生しません。
konsoleでPlasshellをインタラクティブに実行すると、Spotifyアイコンの上にマウスを置くと、次の出力が表示されます。
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06b6f80), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject::installEventFilter(): Cannot filter events for objects in a different thread.
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QObject: Cannot create children for a parent that is in a different thread.
(Parent is Breeze::WidgetStateEngine(0x555dc06aad20), parent's thread is QThread(0x555dc054f140), current thread is QQuickPixmapReader(0x7f73fc0a9ae0)
QWidget::repaint: Recursive repaint detected
QWidget::repaint: Recursive repaint detected
QBackingStore::endPaint() called with active painter; did you forget to destroy it or call QPainter::end() on it?