Bug 500380

Summary: Accessing a network share via Dolphin using systemd mount units logs an error the journal qt.core.qobject.connect: QObject::connect: No such signal
Product: [Applications] dolphin Reporter: hbr <nepnep>
Component: generalAssignee: Dolphin Bug Assignee <dolphin-bugs-null>
Status: REPORTED ---    
Severity: minor CC: kfm-devel, nate
Priority: NOR    
Version First Reported In: 24.12.2   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: Example mount files

Description hbr 2025-02-19 08:17:55 UTC
Created attachment 178570 [details]
Example mount files

SUMMARY
I have set up a NFS network share via systemd auto mount units. The share stays unmounted until it gets accessed by any application, e.g. by clicking on it from the Places or Remote menu in dolphin.

When doing that from Dolphin the share gets mounted by systemd just fine but logs the following errors to the journal:

19.02.25 08:59	dolphin	qt.core.qobject.connect: QObject::connect: No such signal Solid::Backends::Fstab::FstabStorageAccess::checkRequested(QString)

19.02.25 08:59	dolphin	qt.core.qobject.connect: QObject::connect: No such signal Solid::Backends::Fstab::FstabStorageAccess::checkDone(Solid::ErrorType, QVariant, QString)

At the same time these errors also get logged for plasmashell:

19.02.25 08:59	plasmashell	qt.core.qobject.connect: QObject::connect: No such signal Solid::Backends::Fstab::FstabStorageAccess::checkRequested(QString)

19.02.25 08:59	plasmashell	qt.core.qobject.connect: QObject::connect: No such signal Solid::Backends::Fstab::FstabStorageAccess::checkDone(Solid::ErrorType, QVariant, QString)

STEPS TO REPRODUCE
1. Set up a NFS share using systemd auto mount units
2. Trigger mounting the share by clicking on it from Dolphin via a menu (Places or Remote)
3. Check the journal

OBSERVED RESULT
The above error messages appear in the journal.

EXPECTED RESULT
No error happens / error messages get logged.

SOFTWARE/OS VERSIONS
Operating System: EndeavourOS 
KDE Plasma Version: 6.3.1
KDE Frameworks Version: 6.11.0
Qt Version: 6.8.2
Kernel Version: 6.13.2-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 7800X3D 8-Core Processor
Memory: 30,9 GiB of RAM
Graphics Processor: AMD Radeon RX 7900 XTX
Manufacturer: ASRock
Product Name: X670E Steel Legend