[kde] [Bug 496680] New: The virtual keyboard "maliit-keyboard" does not appear or function properly on the lock screen under Wayland.

[NitramO]

https://bugs.kde.org/show_bug.cgi?id=496680

            Bug ID: 496680
           Summary: The virtual keyboard "maliit-keyboard" does not appear
                    or function properly on the lock screen under Wayland.
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Neon
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: m.benjenec at gmail.com
  Target Milestone: ---

When using the virtual keyboard "maliit-keyboard" on a system running KDE
Plasma with Wayland, the keyboard fails to appear or respond when attempting to
unlock the screen after sleep or lock. This behavior is inconsistent with how
the keyboard operates on X11, where it functions correctly under similar
conditions. The issue does not involve touch input, as the system is operated
via a mouse.  

Attempts to manually launch "maliit-keyboard" produce the following terminal
output:  

```plaintext
wordengine.cpp plugin
"/usr/lib/x86_64-linux-gnu/maliit/keyboard2/languages/en/libenplugin.so" loaded
inputmethod_p.h registerActiveLanguage(): activeLanguage is: "en"
in inputMethod.cpp setActiveLanguage() activeLanguage is: "en"
spellechecker.cpp in setLanguage() lang= "en" dictPath= "/usr/share/hunspell"
inputMethod::reset()
in clear preedit.. clearing word engine
spellechecker.cpp in setLanguage() aff_file= "/usr/share/hunspell/en_US.aff"
dic_file= "/usr/share/hunspell/en_US.dic" user dictionary=
"/home/martin/.local/share/maliit-keyboard/en_userDictionary.dic"
QSoundEffect(pulseaudio): Error decoding source
file:///usr/share/maliit/keyboard2/sounds/key_tick2_quiet.wav
```  

An attempt to resolve the `key_tick2_quiet.wav` error by creating an empty
sound file did not resolve the issue.

This behavior seems specific to Wayland, as switching to X11 resolves the
problem.  

---

### Steps to reproduce:
1. Set KDE Plasma to run on Wayland.
2. Lock the screen or let the system enter sleep mode, then wake it.
3. Attempt to use the virtual keyboard "maliit-keyboard" to enter the password
via mouse interaction.

---

**Observed result:**  
The virtual keyboard fails to appear or function.  

---

**Expected result:**  
The virtual keyboard should appear and allow input via mouse to unlock the
screen, as it does on X11.  

---

### Software/OS Versions:
- **Operating System:** KDE Neon 6.2  
- **KDE Plasma Version:** 6.2.3  
- **KDE Frameworks Version:** 6.8.0  
- **Qt Version:** 6.8.0  
- **Kernel Version:** 6.8.0-49-generic  

---

**Additional information:** 
- This issue was discussed on the KDE forum under the following thread: "
https://discuss.kde.org/t/i-have-some-problems-with-my-kde-neon-experience/25864/15?u=nitramo_off
". Forum participants suggested potential causes and troubleshooting steps, but
the problem persists.
- The keyboard works on the SDDM login screen, suggesting this is specific to
the lock screen on Wayland.
- No touch input is involved in this setup.
- Switching to X11 resolves the issue, indicating the problem is specific to
the Wayland session.

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