忽略WM_Class，运行应用程序的图标不能与停靠/喜爱的应用程序图标结合

Question

在我的Ubuntu 18.04中，我有一个桌面文件：

$ cat gnome-connection-manager.desktop 
[Desktop Entry]
Version=1.0
Encoding=UTF-8
Name=Gnome Connection Manager
Comment=A simple ssh connection manager for gnome
GenericName=Connection Manager
Exec=python3 /opt/gnome-connection-manager-1.2.1/gnome_connection_manager.py
Terminal=false
Type=Application
Icon=/opt/gnome-connection-manager-1.2.1/icon.png
Categories=GTK;GNOME;Network;
Name[en]=Gnome Connection Manager
StartupWMClass=[gnome_connection_manager.py]

我这样放置Exec，因为它需要python3，我不能只放置脚本，它不启动。

现在，我把这个应用程序作为我的仪表板/任务栏上的最爱，当它启动时，它不会将运行中的应用图标和停靠的应用图标结合起来。

当我xprop并单击正在运行的应用程序窗口时，我可以看到这一行：

WM_CLASS(STRING) = "gnome_connection_manager.py", "Gnome_connection_manager.py"

那么，如果我已经将WM_CLASS属性放在桌面文件中，它为什么不组合图标呢？

我在用侏儒。

在搜索gtk时，我有：

$ dpkg -l | grep gtk
ii  apport-gtk                                 2.20.9-0ubuntu7.24                               all          GTK+ frontend for the apport crash report system
ii  gir1.2-gtk-3.0:amd64                       3.22.30-1ubuntu4                                 amd64        GTK+ graphical user interface library -- gir bindings
ii  gir1.2-gtksource-3.0:amd64                 3.24.7-1                                         amd64        gir files for the GTK+ syntax highlighting widget
ii  gir1.2-javascriptcoregtk-3.0:amd64         2.4.11-3ubuntu3                                  amd64        JavaScript engine library from WebKitGTK+ - GObject introspection data
ii  gir1.2-javascriptcoregtk-4.0:amd64         2.32.3-0ubuntu0.18.04.1                          amd64        JavaScript engine library from WebKitGTK+ - GObject introspection data
ii  gir1.2-spiceclientgtk-3.0:amd64            0.34-1.1build1                                   amd64        GTK3 widget for SPICE clients (GObject-Introspection)
ii  gstreamer1.0-gtk3:amd64                    1.14.5-0ubuntu1~18.04.2                          amd64        GStreamer plugin for GTK+3
ii  gtk-update-icon-cache                      3.22.30-1ubuntu4                                 amd64        icon theme caching utility
ii  gtk2-engines-murrine:amd64                 0.98.2-2ubuntu1                                  amd64        cairo-based gtk+-2.0 theme engine
ii  gtk2-engines-pixbuf:amd64                  2.24.32-1ubuntu1                                 amd64        pixbuf-based theme for GTK+ 2.x
ii  gtk2hs-buildtools                          0.13.3.1-1                                       amd64        Tools to build the Gtk2Hs suite of User Interface libraries
ii  gtkterm                                    0.99.7+git9d63182-1                              amd64        simple GTK+ serial port terminal
ii  ibus-gtk:amd64                             1.5.17-3ubuntu5.3                                amd64        Intelligent Input Bus - GTK+2 support
ii  ibus-gtk3:amd64                            1.5.17-3ubuntu5.3                                amd64        Intelligent Input Bus - GTK+3 support
ii  libavahi-ui-gtk3-0:amd64                   0.7-3.1ubuntu1.3                                 amd64        Avahi GTK+ User interface library for GTK3
ii  libcanberra-gtk-module:amd64               0.30-5ubuntu1                                    amd64        translates GTK+ widgets signals to event sounds
ii  libcanberra-gtk0:amd64                     0.30-5ubuntu1                                    amd64        GTK+ helper for playing widget event sounds with libcanberra
ii  libcanberra-gtk3-0:amd64                   0.30-5ubuntu1                                    amd64        GTK+ 3.0 helper for playing widget event sounds with libcanberra
ii  libcanberra-gtk3-module:amd64              0.30-5ubuntu1                                    amd64        translates GTK3 widgets signals to event sounds
ii  libchamplain-gtk-0.12-0:amd64              0.12.16-2                                        amd64        Gtk+ widget to display maps
ii  libcheese-gtk25:amd64                      3.28.0-1ubuntu1                                  amd64        tool to take pictures and videos from your webcam - widgets
ii  libclutter-gtk-1.0-0:amd64                 1.8.4-3                                          amd64        Open GL based interactive canvas library GTK+ widget
ii  libcolord-gtk1:amd64                       0.1.26-2                                         amd64        GTK+ convenience library for interacting with colord
ii  libdbusmenu-gtk3-4:amd64                   16.04.1+18.04.20171206-0ubuntu2                  amd64        library for passing menus over DBus - GTK+ version
ii  libdbusmenu-gtk4:amd64                     16.04.1+18.04.20171206-0ubuntu2                  amd64        library for passing menus over DBus - GTK+ version
ii  libgnome-autoar-gtk-0-0:amd64              0.2.3-1ubuntu0.4                                 amd64        GTK+ widgets for the GNOME Autoar library
ii  libgtk-3-0:amd64                           3.22.30-1ubuntu4                                 amd64        GTK+ graphical user interface library
ii  libgtk-3-bin                               3.22.30-1ubuntu4                                 amd64        programs for the GTK+ graphical user interface library
ii  libgtk-3-common                            3.22.30-1ubuntu4                                 all          common files for the GTK+ graphical user interface library
ii  libgtk-3-dev:amd64                         3.22.30-1ubuntu4                                 amd64        development files for the GTK+ library
ii  libgtk2-perl                               2:1.24992-1build1                                amd64        Perl interface to the 2.x series of the Gimp Toolkit library
ii  libgtk2.0-0:amd64                          2.24.32-1ubuntu1                                 amd64        GTK+ graphical user interface library
ii  libgtk2.0-bin                              2.24.32-1ubuntu1                                 amd64        programs for the GTK+ graphical user interface library
ii  libgtk2.0-common                           2.24.32-1ubuntu1                                 all          common files for the GTK+ graphical user interface library
ii  libgtk3-perl                               0.032-1                                          all          Perl bindings for the GTK+ graphical user interface library
ii  libgtkmm-3.0-1v5:amd64                     3.22.2-2                                         amd64        C++ wrappers for GTK+ (shared libraries)
ii  libgtksourceview-3.0-1:amd64               3.24.7-1                                         amd64        shared libraries for the GTK+ syntax highlighting widget
ii  libgtksourceview-3.0-common                3.24.7-1                                         all          common files for the GTK+ syntax highlighting widget
ii  libgtksourceview-3.0-dev:amd64             3.24.7-1                                         amd64        development files for the GTK+ syntax highlighting widget
ii  libgtksourceview-3.0-doc                   3.24.7-1                                         all          documentation for the GTK+ syntax highlighting widget
ii  libgtkspell0:amd64                         2.0.16-1.2                                       amd64        spell-checking addon for GTK's TextView widget
ii  libgtkspell3-3-0:amd64                     3.0.9-2                                          amd64        spell-checking addon for GTK+'s TextView widget
ii  libjavascriptcoregtk-1.0-0:amd64           2.4.11-3ubuntu3                                  amd64        JavaScript engine library from WebKitGTK+
ii  libjavascriptcoregtk-3.0-0:amd64           2.4.11-3ubuntu3                                  amd64        JavaScript engine library from WebKitGTK+
ii  libjavascriptcoregtk-3.0-bin               2.4.11-3ubuntu3                                  amd64        JavaScript engine library from WebKitGTK+ - command-line interpreter
ii  libjavascriptcoregtk-3.0-dev:amd64         2.4.11-3ubuntu3                                  amd64        JavaScript engine library from WebKitGTK+ - development files
ii  libjavascriptcoregtk-4.0-18:amd64          2.32.3-0ubuntu0.18.04.1                          amd64        JavaScript engine library from WebKitGTK+
ii  libreoffice-gtk3                           1:6.0.7-0ubuntu0.18.04.10                        amd64        office productivity suite -- GTK+ 3 integration
ii  libspice-client-gtk-3.0-5:amd64            0.34-1.1build1                                   amd64        GTK3 widget for SPICE clients (runtime library)
ii  libspice-client-gtk-3.0-dev                0.34-1.1build1                                   amd64        GTK3 widget for SPICE clients (development files)
ii  libwebkit2gtk-4.0-37:amd64                 2.32.3-0ubuntu0.18.04.1                          amd64        Web content engine library for GTK+
ii  libwebkitgtk-1.0-0:amd64                   2.4.11-3ubuntu3                                  amd64        Web content engine library for GTK+
ii  libwebkitgtk-3.0-0:amd64                   2.4.11-3ubuntu3                                  amd64        Web content engine library for GTK+
ii  libwebkitgtk-3.0-dev:amd64                 2.4.11-3ubuntu3                                  amd64        Web content engine library for GTK+ - development files
ii  libwmf0.2-7-gtk                            0.2.8.4-12                                       amd64        Windows metafile conversion library
ii  libwxgtk-media3.0-gtk3-0v5:amd64           3.0.4+dfsg-3                                     amd64        wxWidgets Cross-platform C++ GUI toolkit (GTK+ 3 media library runtime)
ii  libwxgtk-media3.0-gtk3-dev                 3.0.4+dfsg-3                                     amd64        wxWidgets Cross-platform C++ GUI toolkit (GTK+ 3 media library development)
ii  libwxgtk3.0-gtk3-0v5:amd64                 3.0.4+dfsg-3                                     amd64        wxWidgets Cross-platform C++ GUI toolkit (GTK+ 3 runtime)
ii  libwxgtk3.0-gtk3-dev                       3.0.4+dfsg-3                                     amd64        wxWidgets Cross-platform C++ GUI toolkit (GTK+ 3 development)
ii  python-gtk2                                2.24.0-5.1ubuntu2                                amd64        Python bindings for the GTK+ widget set
ii  python3-aptdaemon.gtk3widgets              1.1.1+bzr982-0ubuntu19.5                         all          Python 3 GTK+ 3 widgets to run an aptdaemon client
ii  software-properties-gtk                    0.96.24.32.14                                    all          manage the repositories that you install software from (gtk)
ii  transmission-gtk                           2.92-3ubuntu2                                    amd64        lightweight BitTorrent client (GTK+ interface)
ii  ubuntu-release-upgrader-gtk                1:18.04.44                                       all          manage release upgrades
ii  usb-creator-gtk                            0.3.5ubuntu18.04.2                               amd64        create a startup disk using a CD or disc image (for GNOME)
ii  xdg-desktop-portal-gtk                     1.0.2-0ubuntu1.1                                 amd64        GTK+/GNOME portal backend for xdg-desktop-portal
ii  xdg-user-dirs-gtk                          0.10-2                                           amd64        tool to manage well known user directories (Gtk extension)

我知道停靠的桌面文件是我正在编辑的文件，因为编辑和保存会立即生效。在~/.local/share/applications/里。

同一文件夹中的其他桌面文件很好地结合在一起。我已经安装了一个名为xpad的应用程序，另一个例子是Chrome。除了这次之外，所有的xprop和gtk都很好地工作。

Answer 1

嗯..。

我去掉了StartupWMClass周围的括号，它就可以工作了。所以不应该是[xxx]。只能是xxx。