On Windows 10, CopyQ needs to scale properly on high-resolution external monitor
When opening CopyQ after sleep mode and pushing the window to my high-resolution external monitor, CopyQ uses a much too large scaling, It doesn't just affect the size of the text in the window, but it also makes it impossible to use the mouse to navigate the CopyQ tabs and select items. I can fix this by shutting CopyQ down completely and restarting it. After that, the scaling is restored to normal proportions and I can use my mouse again to navigate the tabs and select items.
My external monitor resolution is 3840x1600, my main device is 3240x2160.
Is there a way I can prevent this myself, or can this be fixed, please?
This sounds like a Qt bug. I don't think I can do anything about this in CopyQ, except try updating Qt.
You can try a recent development build which now uses newer Qt (5.15.2): https://ci.appveyor.com/project/hluk/copyq/builds/37445936/artifacts
FWIW, I'm seeing this behaviour now, using CopyQ 7.0
In my case, I have two 1920x1080 displays, one at 125 scaling and one at 150
CopyQ after sleep is huge - looks like 200 scaling or more...
And as above a quit and restart "fixes" the problem
You can try development build of the app based on newer Qt 6 if it fixes the problem: https://ci.appveyor.com/project/hluk/copyq/builds/48252945/artifacts
I suggest using the portable version and backing up your current configuration (Qt 6 uses slightly different format for the configuration).