Tmds.DBus.Protocol.DBusException when hovering from a Datagrid Popup

[erythana]

Describe the bug

Hello,
this might be (somewhat) related to: #12281 (comment)

I'm using the latest Avalonia 11.1.0-beta2 from nuget but this problem persists since at least 11.0.7.
I am running Fedora 40 with Gnome and Wayland.

Here you can find a minimal sample of the problem:
https://github.com/erythana/DBusExceptionMinimalSample/tree/master

When you hover over the datagrid, a popup is shown. When you hover away (to another line or out of the grid), this exception is shown in the Debug Window:

[IME] Error while destroying the context:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method Destroy is not implemented on interface org.freedesktop.IBus.Service
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.Dispose() (IBusX11TextInputMethod #54787541)

This results in a short stutter in the UI.

Also, i am pretty sure this issue did not occur on nightly "11.1.999-cibuild0045778-beta" from avalonias nuget reference.

To Reproduce

Open program
Hover over Datagrid-Line
Check Debug Output

Expected behavior

No exception when hovering away from an tooltip

Avalonia version

11.0.7, 11.1.0-beta1, 11.1.0-beta2

OS

Linux

Additional context

No response

[erythana]

Hello @maxkatz6

Do you have any news on this? If i recall correctly, it was fixed in
#14548 (comment)
but it seems it won't work in the latest builds.

[xecrets]

Still there in 11.2.1

[IME] Error while destroying the context:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method Destroy is not implemented on interface org.freedesktop.IBus.Service
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.Dispose() (IBusX11TextInputMethod #12156768)

To reproduce, enable a tool tip, hover over the control and when exiting the control and the tool tip is hidden this is logged.

[prensing]

I am getting this bug with a context menu for a Grid Row. It happens when I click on the menu item. Running version 11.3.2 of Avalonia and DataGrid.

[IME] Error while destroying the context:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method Destroy is not implemented on interface org.freedesktop.IBus.Service
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.Dispose() (IBusX11TextInputMethod #21331933)
[IME] Error:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Object does not exist at path “/org/freedesktop/IBus/InputContext_2”
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.IBus.IBusX11TextInputMethod.SetCapabilitiesCore(Boolean supportsPreedit, Boolean supportsSurroundingText)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.<>c__DisplayClass40_0.<<UpdateCapabilities>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Avalonia.FreeDesktop.DBusCallQueue.Process() (IBusX11TextInputMethod #21331933)
[IME] Error while destroying the context:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Object does not exist at path “/org/freedesktop/IBus/InputContext_2”
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.QueueOnErrorAsync(Exception e) (IBusX11TextInputMethod #21331933)

[MacKey-255]

Same problem when I close a window manually in Linux Debian 12 with Avalonia 11.3.6
Error:

[IME] Error while destroying the context:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: Method Destroy is not implemented on interface org.freedesktop.IBus.Service
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.Dispose()

[slavslavin]

Similar problem with context menu Astra Linux 1.8.2 with Avalonia 11.3.5:

UnobservedTaskException: Exception type: System.AggregateException
Message: A Task's exception(s) were not observed either by Waiting on the Task or accessing its Exception property. As a result, the unobserved exception was rethrown by the finalizer thread. (org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.AppMenu.Registrar was not provided by any .service files)
Inner #1/1 in AggregateException:
Exception type: Tmds.DBus.Protocol.DBusException
Message: org.freedesktop.DBus.Error.ServiceUnknown: The name com.canonical.AppMenu.Registrar was not provided by any .service files
Source: System.Private.CoreLib
Stack trace:

   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)

[hhyyrylainen]

I think I have this same problem on basically any popup closing, for example tooltips and combo boxes as well, which is not something anyone has mentioned yet). So it was a bit hard to find as the issue tile in my opinion should highlight how this affects every single tooltip, popup menu etc.

I'm using Avalonia 11.3.9 on Fedora 43 with GNOME on Wayland.

Edit: some similar logs that no one has reported here yet:

2026-01-06 18:09:11.7185|WARN|Avalonia||[X11Platform] SMLib/ICELib reported a new error: SESSION_MANAGER environment variable not defined (X11PlatformLifetimeEvents #53182860)

2026-01-06 18:10:13.5400|WARN|Avalonia||[IME] Error:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.IBus.InputContext” on object at path /org/freedesktop/IBus/InputContext_1117
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.IBus.IBusX11TextInputMethod.SetCapabilitiesCore(Boolean supportsPreedit, Boolean supportsSurroundingText)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.<>c__DisplayClass40_0.<<UpdateCapabilities>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Avalonia.FreeDesktop.DBusCallQueue.Process() (IBusX11TextInputMethod #12435494) 

2026-01-06 18:10:19.5392|WARN|Avalonia||[IME] Error:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.IBus.InputContext” on object at path /org/freedesktop/IBus/InputContext_1119
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.IBus.IBusX11TextInputMethod.SetCapabilitiesCore(Boolean supportsPreedit, Boolean supportsSurroundingText)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.<>c__DisplayClass40_0.<<UpdateCapabilities>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Avalonia.FreeDesktop.DBusCallQueue.Process() (IBusX11TextInputMethod #54273197) 

2026-01-06 18:11:07.3354|WARN|Avalonia||[IME] Error:
Tmds.DBus.Protocol.DBusException: org.freedesktop.DBus.Error.UnknownMethod: No such interface “org.freedesktop.IBus.InputContext” on object at path /org/freedesktop/IBus/InputContext_1128
   at Tmds.DBus.Protocol.DBusConnection.MyValueTaskSource`1.System.Threading.Tasks.Sources.IValueTaskSource.GetResult(Int16 token)
   at Tmds.DBus.Protocol.DBusConnection.CallMethodAsync(MessageBuffer message)
   at Tmds.DBus.Protocol.Connection.CallMethodAsync(MessageBuffer message)
   at Avalonia.FreeDesktop.DBusIme.IBus.IBusX11TextInputMethod.SetCapabilitiesCore(Boolean supportsPreedit, Boolean supportsSurroundingText)
   at Avalonia.FreeDesktop.DBusIme.DBusTextInputMethodBase.<>c__DisplayClass40_0.<<UpdateCapabilities>b__0>d.MoveNext()
--- End of stack trace from previous location ---
   at Avalonia.FreeDesktop.DBusCallQueue.Process() (IBusX11TextInputMethod #46594488)

[torum]

Still there in Avalonia v12.0.0 with the latest Tmds.DBus.Protocol 0.92.0.

[jurihock]

The issue occurs even with very basic things, such as the context menu on a blank window...

Please consider following minimal example how to reproduce the DBus issue on Ubuntu 26.04 LTS using Avalonia 12.0.2:

https://github.com/jurihock/AvaloniaLinuxDBusIssue

This repo essentially presents an example of the context menu as outlined in the official Avalonia docs with an additional LogToDelegate callback to make the error message visible.

Please let me know if anything is unclear.