Comment 4 for bug 1907459

Hello again,

I have to admit to not having a good idea yet. I will try reading up on Qt's event compression which is new to me.

One thing that you could try even it is a shot into the dark is to stash away qpdfview's database at ~/.local/share/qpdfview/qpdfview/database to reset its per-file settings and try to open the file with a fixed scale factor like 100% instead of the fit-to-* scale modes. This is based on seeing stuff related to QGraphicsItem in the backtrace and profile.

Best regards,
Adam