Nessun input da tastiera in Qt Creator dopo l'aggiornamento a Qt5

Question

Ho questa strana situazione che dopo aver aggiornato Qt da 4.8 a 5.3, Qt Creator (v.3.2.1) non prenderà alcun input da tastiera. La tastiera funziona normalmente in altre applicazioni.

Sono su Debian Wheezy (7.7) con XFCE, ma ho installato il set Qt5 di pacchetti da wheezy-backports. Qualcuno ha un'idea di cosa si può fare a riguardo?

Aggiornamento: Come richiesto, ecco l'output del terminale:

libEGL warning: DRI2: failed to authenticate 
xkbcommon:ERROR: failed to add default include path auto 
Qt: Failed to create XKB context! 
Use QT_XKB_CONFIG_ROOT environmental variable to provide an addtional search path, 
add ':' as separator to provide several search paths and/or make sure that XKB 
configurationdata directory contains recent enough contents, to update please see 
http://cgit.freedesktop.org/xkeyboard-config/ . 

Answer 1

è apparentemente un bug noto, alcuni messaggi e post parla di questo problema su Internet.

magari provare questo, da https://lists.debian.org/debian-backports/2014/10/msg00061.html

Opening Qt5 applications from backports (or self compiled against backported Qt5) have some trouble finding XCB data:

$ /usr/lib/x86_64-linux-gnu/qt5/examples/quick/d ialogs/systemdialogs/systemdialogs xkbcommon: ERROR: failed to add default include path auto Qt: Failed to create XKB context! Use QT_XKB_CONFIG_ROOT environmental variable to provide an additional search path, add ':' as separator to provide several search paths and/or make sure that XKB configuration data directory contains recent enough contents, to update please see http://cgit.freedesktop.org/xkeyboard-config/ .

Applications run fine, but can't get input from the keyboard.

As the warning points out, setting the environment variable fixes it:

export QT_XKB_CONFIG_ROOT=/usr/share/X11/xkb

Quindi, cercare di eseguire QtCreator con il comando folowing:

export QT_XKB_CONFIG_ROOT=/usr/share/X11/xkb & qtcreator