[Bug] Drop-down menu contents appears on different screen

[master801]

If the program window is moved over to a different screen (ex screen 2), and "File" menu (happens with "Help" as well) is selected, the contents of the drop-down menu are displayed on the main screen (ex screen 1) instead of the screen the window was moved over to.

Release v1.1-Windows-x64, Windows 10, 3 monitors side-by-side

[Luca1991]

Hi @master801

I can't reproduce this issue because I only have one monitor. Can you check if this problem is also present in other Qt based applications?

Thanks..

[master801]

This does indeed seem to be an issue within Qt6 itself. Maybe even within the specific version of Qt6 that NDSFactory v1.1 is packed with.

I tested with OpenRGB and it has the same bug.

So I tried using an older version of NDSFactory (some build from 2021 that uses Qt5), and the combobox issue is not present there.

Long probably off-topic thought process

Which got me thinking, why is it present in one version of Qt5, but not the other. So I compared DLL versions between the two, and found out that OpenRGB uses 5.15.0, while NDSFactory used 5.15.2. Which got me thinking again, if I transplanted the 5.15.2 DLLs to OpenRGB, if the problem would be fixed.

Turns out I was right. Transplanting the 5.15.2 DLLs fixed the combobox issue.

Testing with Dolphin (the emulator - which also uses Qt6), there are no issues with the combobox drop-down menus there. Interestingly enough, they use 6.5.1 while NDSFactory uses 6.5.2.

Using the same DLL transplant technique, it seems that the multiple monitor combobox issue has been fixed in NDSFactory, using Dolphin's Qt6 6.5.1 DLLs.

Before transplanting 6.5.1 (6.5.2):

After transplanting 6.5.1 (6.5.1):

It seems this "multiple monitor" issue has been mentioned a lot in the past just looking at Qt's issue tracker, but they seem to have all been closed due to "insufficient" information, or just old age.

EDIT: Yep, this is definitely a bug within 6.5.2 specifically.
https://www.reddit.com/r/QtFramework/comments/17xclf1/qt_652_sucks/

[Luca1991]

Hi @master801

On Windows (a macOS) I configured the build server to compile using Qt 6.5.2.
This is the latest LTS release, but I'm starting to consider targeting for the latest stable build.

[Luca1991]

We are now using latest stable Qt version for building macOS and Windows version (d69e4e1)

You can re-test this issue when next NDSFactory release will be available.

[Luca1991]

Hi @master801
this issue should be fixed in release v1.2, as the CI is now building using the last stable Qt version.
Can you test it and let me know if I can close this issue? thanks.

[master801]

Hi @master801 this issue should be fixed in release v1.2, as the CI is now building using the last stable Qt version. Can you test it and let me know if I can close this issue? thanks.

Yes, release v1.2 fixes this issue.

Thanks.