I maintain MuseScore packages for Ubuntu via the Launchpad PPA which are
based on the Debian packages.
Looking at the source package it appears that the PDF manual is removed by
a patch for compliance with Debian's Free Software Guidelines. However, the
upstream version no longer includes the
Package: musescore
Version: 2.0.2+dfsg-2
Severity: normal
tg@leee:~ $ musescore
QXcbConnection: Failed to initialize XRandr
Qt: XKEYBOARD extension not present on the X server.
initScoreFonts 0x9a75008
init Help from:
cannot setup data