Wayland issues

[dae]

• Qt 6.2.2, probably Qt5 too: editor sometimes pastes as text, sometimes pastes as html (mimeData.hasHtml() is returning intermittently false). Does not occur for me when using xwayland + QT_QPA_PLATFORM=xcb. Maybe related to https://bugreports.qt.io/browse/QTBUG-74330 (fixed in 6.3)
• Qt 5/6.2.2/6.3: client side decorations are not supported, so when used on Gnome/Mutter, there are no borders/titlebars
• Qt 5/6.2.2: window.raise() is not supported, so clicking on 'add' to bring an existing add window to the top does not work (fixed in 6.3 for Sway, but not Gnome)
• Qt 5/6.2.2/6.3: fullscreen mode renders Anki transparent (confirmed on 2.1.51 RC2, Manjaro Gnome; doesn't happen with Sway)
  https://forums.ankiweb.net/t/blury-interface-with-gnome-wayland-and-fractional-scaling/19196/3?u=kleinerpirat

Anki will link users to this page when they run Anki on a Wayland system.

[kleinerpirat]

Qt 5/6.2.2: fullscreen mode renders Anki transparent (confirmed on 2.1.51 RC2, Manjaro Gnome)
https://forums.ankiweb.net/t/blury-interface-with-gnome-wayland-and-fractional-scaling/19196/3?u=kleinerpirat

[kleinerpirat]

Re 0b03919: on Qt 6.3 the warning about window.raise() doesn't pop up in the console anymore, but pressing A to bring up an existing add window still doesn't work on my end.

The transparency issue for Gnome on fullscreen still occurs on 6.3.

[dae]

Thanks for testing. It changes focus for me when testing with Sway, so I suspect Mutter hasn't implemented the extension yet - if you have access to KDE to test with, maybe that would fare better?

[kleinerpirat]

Sadly I don't have immediate access to KDE anymore, because I switched back to Gnome recently (smoother UX)...
Perhaps someone on the forum can help us out :)

[Koorosh-J]

Qt 5/6.2.2/6.3: client side decorations are not supported, so when used on Gnome/Mutter, there are no borders/titlebars

Also the sub-windows opens in top left corner instead of Center (like add tags to multiple cards, custom study, ...)
As in this link mentioned if we start Anki with ( $ WAYLAND_DISPLAY="" anki ) it will be fixed.

https://www.reddit.com/r/Anki/comments/tzpouv/anki_250_window_frame_on_linux/

[senorsmile]

I'm on nixos using sway. I just tried going from current stable (21.11) which points to anki 2.1.49 to unstable which currently points to 2.1.51. The former seems to open fine, but the latter has mostly windows that are blank for me. This renders the new version of Anki completely unusable for me. I have an old Manjaro laptop which also has sway on it. I updated and tried to open Anki and get the exact same thing.

When starting from a shell I get:

Qt warning: QApplication: invalid style override 'adwaita' passed, ignoring it.
	Available styles: Windows, Fusion 
mpv not found, reverting to mplayer
Qt warning: Wayland does not support QWindow::requestActivate() 

Let me know if I should open an entirely new issue or not.

[senorsmile]

I just confirmed that whatever changes were made in the 2.1.52 release from today makes it display things again for me in sway: senorsmile/nixpkgs@7b33d2c.

[penn5]

Anki 2.1.52 appears to have a regression since 2.1.50 on Flatpak (Fedora 35):

[penn@Ferao ~]$ flatpak run net.ankiweb.Anki --version
Anki starting...
Initial setup...
Preparing to run...
Anki 2.1.52
[penn@Ferao ~]$ flatpak run net.ankiweb.Anki
Anki starting...
Initial setup...
Preparing to run...
Wayland support is disabled by default due to bugs:
https://github.com/ankitects/anki/issues/1767
You can force it on with an env var: ANKI_WAYLAND=1
Qt info: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. 
Qt warning: could not connect to display  
Qt info: Could not load the Qt platform plugin "xcb" in "" even though it was found. 
Qt fatal: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
 
[penn@Ferao ~]$ ANKI_WAYLAND=1 flatpak run net.ankiweb.Anki
Anki starting...
Initial setup...
Preparing to run...
Qt info: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. 
Qt warning: could not connect to display  
Qt info: Could not load the Qt platform plugin "xcb" in "" even though it was found. 
Qt fatal: This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.

Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, webgl, xcb.
 
[penn@Ferao ~]$ QT_QPA_PLATFORM=wayland ANKI_WAYLAND=1 flatpak run net.ankiweb.Anki
Anki starting...
Initial setup...
Preparing to run...
Qt info: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. 
Starting main loop...
Qt warning: Wayland does not support QWindow::requestActivate() 

The application runs, but without scaling (this is expected according to this issue).
Debug info from 2.1.52

Anki 2.1.52 (ab1c2395) Python 3.9.10 Qt 5.15.2 PyQt 5.15.5
Platform: Linux
Flags: frz=True ao=True sv=3
Add-ons, last update check: 2022-05-24 08:55:14


===Add-ons (active)===
(add-on provided name [Add-on folder, installed at, version, is config changed])
Remove card history ['2089200096', 2018-04-23T07:50, 'None', '']

===IDs of active AnkiWeb add-ons===
2089200096

===Add-ons (inactive)===
(add-on provided name [Add-on folder, installed at, version, is config changed])

I tried downgrading Anki to 2.1.50:

[penn@Ferao ~]$ flatpak run net.ankiweb.Anki --version
Anki starting...
Initial setup...
Preparing to run...
Anki 2.1.50
[penn@Ferao ~]$ flatpak run net.ankiweb.Anki
Anki starting...
Initial setup...
Preparing to run...
Qt info: Warning: Ignoring XDG_SESSION_TYPE=wayland on Gnome. Use QT_QPA_PLATFORM=wayland to run on Wayland anyway. 
Starting main loop...

The debug info from the working 2.1.50:

Anki 2.1.50 (26d40c3a) Python 3.9.10 Qt 5.15.2 PyQt 5.15.5
Platform: Linux
Flags: frz=True ao=True sv=3
Add-ons, last update check: 2022-05-24 08:52:22


===Add-ons (active)===
(add-on provided name [Add-on folder, installed at, version, is config changed])
Remove card history ['2089200096', 2018-04-23T07:50, 'None', '']

===IDs of active AnkiWeb add-ons===
2089200096

===Add-ons (inactive)===
(add-on provided name [Add-on folder, installed at, version, is config changed])

On 2.1.50, the application displays perfectly without these bugs. I suspect a bug in the code that blocks Wayland support, as it is apparently not used on my system anyway.
For now, I'm going to lock the version to 2.1.50, since it worked perfectly.

[dae]

That appears to be an issue with the Flatpak, not Anki.

[hendursaga]

That appears to be an issue with the Flatpak

At any rate, with Ubuntu Jammy, under Sway, I can see borders and title bars perfectly fine, with ANKI_WAYLAND set to 1, as well as go fullscreen without any transparency.

[udoprog]

I'm using Anki on Fedora 38 (currently Beta) and Gnome through flatpak.

Anki Version ⁨2.1.60 (76d8807)⁩
Python 3.9.15 Qt 6.4.2 PyQt 6.4.0

Gnome details:

Anki runs fine with basic non-gnome window decorations using:

flatpak run --env=DISABLE_QT5_COMPAT=1 --env=ANKI_WAYLAND=1 --branch=stable --arch=x86_64 --command=anki --file-forwarding net.ankiweb.Anki

I'm not sure what's providing the window decorations, maybe it's some QT fallback.