Qt4 copy/paste issue when using some XServer
I found that Qt4 and some XServer(AFAIK, Exceed, XMing, VcXsrv, has to be latest version) have copy/paste issue, more specifically, user cannot copy in XWindow then paste to Windows App(Excel for example), this problem can be easily reproduced using any Qt official example.
This seems due to new version XServer and Qt4 have xcb/Xlib compatibility issue, I'm guessing all XServer will have this problem.
This problem happens in all version Qt4.
This problem is fixed in Qt5.
Is this a known issue in Qt4?
Is there a patch for this?