In the meanwhile, the proper workaround is to run lyx with the command line:
QT_X11_NO_NATIVE_MENUBAR=1 lyx
or equivalently to adapt /usr/share/applications/lyx.desktop as follows:
Exec=env QT_X11_NO_NATIVE_MENUBAR=1 lyx %F
--which work for me. I have been having the same problem with menus. Just adding this to "widen" the pool of those reporting.
Many thanks to Guillaume for the workarounds--
In the meanwhile, the proper workaround is to run lyx with the command line: NO_NATIVE_ MENUBAR= 1 lyx applications/ lyx.desktop as follows: NO_NATIVE_ MENUBAR= 1 lyx %F
QT_X11_
or equivalently to adapt /usr/share/
Exec=env QT_X11_
--which work for me. I have been having the same problem with menus. Just adding this to "widen" the pool of those reporting.