https://bugs.kde.org/show_bug.cgi?id=358689
--- Comment #8 from Martin Gräßlin <mgraess...@kde.org> --- (In reply to Weng Xuetian from comment #7) > This setting has nothing to do with X11, it's just for Qt itself. > > you can set it like: > QT_SCREEN_SCALE_FACTORS=eDP1=2;eDP2=3 > > So when you move window among screen, the Qt's window will be rescaled to > the screen dpi automatically. That cannot work on X11, sorry. That's just Qt's "I don't know how to multi-screen on X11". The problems here are: * a window is not connected with an output, it has a position within the X screen space * QWindow allows to set the QScreen, but this does not influence whether the window is sown on the screen * DPI for multi-screen on common X-Servers is broken. As soon as there are two screens, the X-Server does report a default 96 pdi AFAIK * when moving a window from one screen to another it could result in an infinite jumping between the different DPI modes * the totally legit situation of one window on two screens is not handled * the window manager does not adjust the window decoration * I could go on and on Exposing a config option for that would be wrong: we cannot have different scale factors on X11. That would just introduce another set of things which can go wrong with Qt's utterly broken (and broken beyond repair) multi-screen implementation on X11. -- You are receiving this mail because: You are watching all bug changes.
