Am 03.10.2017 um 20:54 schrieb Stephan Witt <st.w...@gmx.net>: > > Am 01.10.2017 um 21:17 schrieb Jean-Marc Lasgouttes <lasgout...@lyx.org>: >> >> Le 30/09/17 à 18:33, Stephan Witt a écrit : >>> No, that’s not the problem. It looks like a problem with the „backing >>> store“. >> >> I just read about the backing store, but I have problems deciding how to >> deal with it. The Qt4 doc mentions it, but only Qt5 has means to interact >> with it (and a QBackingStore class). Does this means that Qt5 handling >> should be different from Qt4 one? > > Sorry, I don’t know what I’ve talked about. It was a wild guess. > I know with X11 there is an option to have the backing store > at X-Server-side to reduce the network traffic. But I don’t > know if and how it is used by Qt and if there are pitfalls or > bugs on Mac with it. > >> Can you still compile with qt4? If yes, is the bug present there too? > > Yes, I’ve built it with Qt4 now and no, the bug isn’t present there.
I have to correct myself. It is there with Qt4 too, but it’s more difficult to trigger it. Simple cursor down was ok. Running pdflatex triggers it on Qt4 too. The work area is grey and cursor movements force the repaint of small areas. After resize the work area is correctly displayed again. It’s „better“ with Qt4 but not good. Stephan
