noVNC clipboard does not send Turkish characters correctly on Windows VMs (CloudStack 4.22)
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Descripción
### problem
When using CloudStack 4.22 noVNC console, clipboard text containing Turkish characters is not transmitted correctly to Windows virtual machines.
"asdasdç"
Inside the Windows VM it appears corrupted:
"asdasd."
The issue only occurs with noVNC → Windows clipboard operations.
It does not occur on Linux VMs.
Typing manually sometimes works, but clipboard “Send” is consistently broken.
This suggests a missing or incorrect UTF-8 → Windows codepage conversion in the noVNC version included with the CloudStack 4.22 SystemVM.
### versions
CloudStack version: 4.22.0
System VM Template: systemvm64template 4.22 (fresh download)
Hypervisor: VMware ESXi 8.x
vCenter: 8.x
Browsers tested: Chrome, Firefox (same result)
Guest OS: Windows Server 2016 / 2019 / 2022 (all affected)
### The steps to reproduce the bug
1. Deploy a Windows VM in CloudStack 4.22
2. Open noVNC console → Clipboard
3. Paste the following UTF-8 text: "asdasdç"
4. Click Send Clipboard
5. Paste the text inside the Windows VM
Expected: Unicode characters should be transmitted correctly
Actual: Turkish characters appear corrupted or replaced with “?”
### What to do about it?
The noVNC version embedded in SystemVM may not properly handle UTF-8 clipboard transmission for Windows guests.
• CloudStack may need:
• An updated noVNC version inside the SystemVM
• A fix to clipboard handling for non-ASCII characters
• Unicode normalization before sending text to the RFB server
This issue appears similar to:
https://github.com/apache/cloudstack/issues/7335
Please investigate whether the current SystemVM noVNC build processes clipboard text incorrectly or lacks UTF-8 handling required for Windows VMs.
Guía de contribución
Línea de trabajo
Comienza con la ruta del portapapeles de noVNC incluida en la CloudStack 4.22 System VM y reproduce el problema usando el texto turco indicado en una VM de Windows. Compara el comportamiento con los guests de Linux y con el issue 7335 relacionado. Se considera terminado cuando clipboard Send conserva los caracteres no ASCII en las versiones de Windows Server afectadas.
Escrito por el modelo de indexación a partir del texto del issue.
Evaluación
- Área
- desktop, infrastructure
- Tipo de issue
- Error
- Dificultad
- 4/5
- Tiempo estimado
- 3-5 días
- Estado de actividad
- Tranquilo
- Claridad
- Bastante claro
- Aptitud para principiantes
- 48/100