https://bugs.kde.org/show_bug.cgi?id=514909
Bug ID: 514909
Summary: xdg-open fails to open local files with Wine
applications (App info not found for 'org.kde.')
Classification: I don't know
Product: kde
Version First unspecified
Reported In:
Platform: Fedora RPMs
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Bug report – KDE Plasma 6 / xdg-desktop-portal-kde
## Title
`xdg-open fails to open local files with Wine applications (App info not found
for 'org.kde.')`
---
## Product
**KDE Plasma**
## Component
**xdg-desktop-portal-kde**
## Version
* Plasma: **6.x (Fedora 43 KDE Spin)**
* Frameworks: **KF6**
* Qt: **6.x**
---
## Platform
Fedora Linux 43 (x86_64)
Session: KDE Plasma 6 (Wayland and X11 tested)
---
## Description
When using **Wine applications installed system-wide (non-Flatpak)** and
properly registered with a valid `.desktop` file (including
`MimeType=application/pdf`), `xdg-open` fails to open local files and returns a
portal error.
This occurs even though:
* the application appears correctly in the KDE menu
* the application works when launched directly
* file associations work via Dolphin (double-click)
---
## Steps to Reproduce
1. Install a Windows application using Wine (example: PDFgear).
2. Create a valid desktop entry in:
```
~/.local/share/applications/pdfgear-wine.desktop
```
Example:
```ini
[Desktop Entry]
Name=PDFgear (Wine)
Exec=env WINEPREFIX=/home/user/.wine wine "C:\\Program
Files\\PDFgear\\PDFgear.exe" %f
Type=Application
MimeType=application/pdf;
Icon=application-pdf
```
3. Update KDE cache:
```bash
kbuildsycoca6
```
4. Run:
```bash
xdg-open test.pdf
```
---
## Actual Result
The following error is returned:
```
qt.qpa.services: Failed to register with host portal
QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID:
App info not found for 'org.kde.'")
```
Then `xdg-open` attempts to open:
```
http://test.pdf/
```
---
## Expected Result
`xdg-open test.pdf` should open the file with the associated Wine application,
just like:
* double-clicking the file in Dolphin
* using “Open With” in KDE
This behavior worked correctly in **Plasma 5**.
---
## Additional Information
* The issue does **not** appear to be related to Wine configuration.
* The same Wine application launches and opens files correctly when:
* started from the KDE menu
* started directly via `wine app.exe file.pdf`
* `gio open test.pdf` works correctly.
* This suggests a **portal-kde AppID detection issue** for non-Flatpak
applications (Wine).
---
## Workarounds
* Use `gio open file.pdf` instead of `xdg-open`
* Open files directly from Dolphin
* Set default applications via KDE System Settings
---
## Regression
Yes.
This behavior worked correctly under **KDE Plasma 5**.
---
## Severity
Normal
---
## Notes for maintainers
Wine applications do not provide a DBus AppID. Plasma 6 /
xdg-desktop-portal-kde appears to **require a resolvable AppID**, causing
`xdg-open` to fail even when a valid `.desktop` file and MIME association
exist.
This likely affects **all Wine-based applications** on Plasma 6.
---
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