Patrick

How many minutes are we talking about? Does Prismatik show the error icon or the normal icon, and does it report FPS? I have this sometimes with resume from standby...

Thanks for the PR! Which OS are you testing on? On windows this value seems to be always 1 even when using scaling. ok to test

> When device pixel ratio is 1, then probably everything should work as expected, shouldn't it? Oh yes, I didn't mean to imply this would break something. > In my...

Windows scaling is a mess and most things look acceptable only after restarting them after changing the scale. For example, this is Prismatik when I set my windows scaling to...

I'm pretty sure it's not the case that windows scales the app. If that were the case, proportions of the elements in the UI would remain the same, but I...

> probably `grabWidget->screen()->devicePixelRatio()` Docs for QGuiApplication: "Use this function only when you don't know which window you are targeting. If you do know the target window, use QWindow::devicePixelRatio() instead." Docs...

Qt6 has changed the coordinate system to a scaling dependent one, so things need to be adjusted. I did that on master meanwhile but could use help testing this on...

Does it work if you bulid from the 5.11.2.31 commit (5044e21)? Master switched to Qt6 recently and Qt6 uses different coordinates for high DPI displays. I only have Windows available...

Or maybe X11 has an equivalent to what Desktop Duplication does, so we don't need to do coordinates math: https://github.com/psieg/Lightpack/blob/97955fec7256157d20bb2577467d20cf9fb10e01/Software/grab/DDuplGrabber.cpp#L224

Your log contains these two lines: `void GrabManager::initLedWidgets(int) Grabbing 0 LEDs!` `static QVariant SettingsScope::Settings::valueMain(const QString&) "Adalight/NumberOfLeds" = QVariant(QString, "0")` Possibly something screws up this field / the device configuration when...