cp digitaleditions.desktop /usr/share/applications
[Desktop Entry]
Encoding=UTF-8
Name=digitaleditions
Comment=PlayOnLinux
Type=Application
Exec=/usr/share/playonlinux/playonlinux --run "digitaleditions" %F
Icon=/home/alex/.PlayOnLinux//icones/full_size/digitaleditions
Name[fr_FR]=digitaleditions
StartupWMClass=digitaleditions.exe
Categories=
Associate with nautilus open file with –> choose other and select DigitalEdition
This application failed to start because it could not find or load the Qt platform plugin "headless"
in "/usr/lib64/calibre/calibre/plugins".
Available platform plugins are: headless (from /usr/lib64/calibre/calibre/plugins), minimal, offscreen, xcb.
Probably you rebuild qt libraries and some dependencies is broken. Try to rebuild Calibre
Calibre 2.78.0 works with dev-qt/qtgui-4.8.7
Trying calibre-3.15.0 with qt dev-qt/qtgui-5.9.4-r3 –> WORKS!