I was working for quite a while with Qt5 5.9.8 and updated to the latest release Qt5 5.14.1. I built Qt 5.14.1 with exactly the same flags as the 5.9.8 version and everything seemed to be working fine except for one issue: It is impossible to enter numbers with the numpad.
This issue has nothing to do with the applications I write with Qt but is somehow Qt inherent. It is also present in the Qt designer as well as in ParaView which I compile with the my compiled Qt version.
Is there anything I can do to compile Qt to make the numpad work again?
The same bug report that Frank Osterfeld mentioned lead me to the solution of this problem. The issue was a missing xkb dependency. After a yum install libxkbcommon libxkbcommon-devel Qt5 is built and the numpad is working as expected.
The difference can be inspected in the configure output. Without libxkbcommon libxkbcommon-devel:
XCB:
Using system-provided XCB libraries .. no
XCB XKB .............................. no
XCB XInput ........................... yes
and with libxkbcommon libxkbcommon-devel:
XCB:
Using system-provided XCB libraries .. no
XCB XKB .............................. yes
XCB XInput ........................... yes