This works as far as I can see.
> On 19 Oct 2017, at 17:34, Jean-Marc Lasgouttes <lasgout...@lyx.org> wrote: > > Le 16/10/2017 à 14:48, Patrick De Visschere a écrit : >> I’ve defined a watchpoint on what I believe is the backingstore image and >> this is the complete call stack: > > This callstack is very interesting. It tells us that syncBackingStore is > invoked from QWidget::event for the event UpdateRequest (14). In turn at (16) > we have an occasion of cathcing this event and ask for a full redraw. > > Could you try the following pair of patches? The first one is the one I am > working on in another thread (but which is not ready yet) and the second is > the one of interest here (but it depends of the first one). > > JMarc > <0001-Allow-multiple-calls-to-processUpdateFlags-before-re.patch><0001-Tentative-patch-fix-black-screen-on-Mac.patch>
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