Qt (Wayland) can't set position at start, and position gets reset after every widget show

[Eiji7]

The config for last_x and last_y keys are always set to 0.

$ grep -P "last_(x|y)|remember_geometry" ~/.config/trackma/ui-qt.json
    "last_x": 0,
    "last_y": 0,
    "remember_geometry": true,

[z411]

Did this work for you before? Because apparently applications can't get or set their own position on the screen in Wayland:

w3c/window-management#68

I can only think of disabling this feature on Wayland, or at least changing its name, as it can still get and set its own size.

[Eiji7]

No it did not work in previous versions.

Hmm … in that case would disabling it would change the behaviour of hiding/restoring window with tray icon enabled? It's not a problem for me to place a window once, but it's frustrating that I need to do this every time I restore the window when clicking on tray icon. If it's possible that would be standalone very helpful.

[z411]

but it's frustrating that I need to do this every time I restore the window when clicking on tray icon

That's a different issue actually and it shouldn't be happening; when hiding to tray the window position should be preserved. I am trying right now on KDE Wayland and the window gets restored to the position it was in when I click on the tray.

What desktop environment are you using?

[Eiji7]

Distro: Gentoo Linux 2.18
Profile: default/linux/amd64/23.0/desktop/plasma
Kernel: 6.12.63-gentoo-dist (64-bits)

KDE Plasma: 6.5.5
KDE Frameworks: 6.22.0
Qt: 6.10.1
Waylnad: 1.24.0
Wayland Protocols: 1.45

CPU: AMD Ryzen 9 7950X3D (32) @ 5.759GHz
GPU: AMD ATI Radeon RX 7900 XT/7900 XTX/7900 GRE/7900M
Memory: 64 GiB DDR5 RAM
Motherboard: Gigabyte X670E AORUS MASTER

[z411]

Thank you I was able to reproduce (I was running on XWayland without noticing). I wonder if it's a Wayland limitation or if something else has to be done for it to work. I'll look into it.

[Eiji7]

I think it's not a Wayland issue as I can hide/restore GTK+ version on Wayland using WKDocker (alternative for KDocker on X11) and it remembers the position.

[z411]

Can you check if that application is running on XWayland? Right now I tried Mumble and QBitTorrent (both Qt applications) and they both do not remember their position, be it at start, or when restoring from tray. This makes me believe Wayland security sandbox is designed to not let applications position themselves, and instead have the compositor make this decision (through KWin rules in KDE's case).

Applications seemingly can do it on Wayland only if they're running on XWayland (Trackma can do it too if you force it to run through XWayland - which is why I wrongly thought it was working before).

[molkoback]

I can reproduce this in Plasma Wayland and even the KDE applications have the same problem. As a workaround you can set the window starting position in KWin: System Settings -> Window Management -> Window Rules. Also remember to uncheck "Remember window size and position" in trackma.

[Eiji7]

Oh, nice one! I did not found out it on QBitTorrent as I have always maximised it's window! Yeah, it also do not remember it's position. However I have found something interesting … The WKDocker is working even with QBitTorrent, so it's probably because it's a daemon + KWin script. Maybe if Trackma detects Plasma desktop running it could offer similar functionality? I guess you can connect your own script using python-dbus, right? That could give you an universal solution for both GTK and Qt versions on Plasma/Wayland.

[z411]

I would bet that WKDocker is running those applications in XWayland mode - the fact that trackma-gtk had a tray icon for you makes me think it does, because it doesn't support the tray icon in Wayland at all. You can run xeyes and move the cursor on the window and see if the eyes move (if they do it's XWayland, if they don't then it's native Wayland).

EDIT: My bad, now that I looked into WKDocker I saw what the application does. I'll see what it does and see if it's in our scope to replicate its behavior.