Bug 2392501

Summary: [simple-scan] Unhandled key while saving: x-dpi
Product: [Fedora] Fedora Reporter: Laurențiu Nicola <lnicola>
Component: gdk-pixbuf2Assignee: Matthias Clasen <mclasen>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: urgent Docs Contact:
Priority: unspecified    
Version: 43CC: amigadave, awilliam, bgilbert, dodji, drusek, fedora, geraldo.simiao.kutz, gnome-sig, igor.raits, kparal, mail, mclasen, metherid, mmuehlfe, negativo17, renault, robatino, rwfranks
Target Milestone: ---Keywords: Desktop, Regression
Target Release: ---   
Hardware: x86_64   
OS: Linux   
Whiteboard: AcceptedFreezeException
Fixed In Version: gdk-pixbuf2-2.44.2-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2025-09-30 00:19:05 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2324226    

Description Laurențiu Nicola 2025-09-02 05:13:53 UTC
simple-scan used to work for me in f42, but now I can't save any image or PDF because of that error.

Reproducible: Always

Steps to Reproduce:
1. Scan something
2. Save

Actual Results:
A dialog with "Failed to save file, Unhandled key while saving: x-dpi", then the application keeps displaying "Saving" in the corner.

Expected Results:
Document gets saved

Additional Information:
Nothing on the console

Tested on: simple-scan-48.1-3.fc43.x86_64

Comment 1 Thorsten Leemhuis 2025-09-16 13:14:01 UTC
Seeing this as well since updating to f43 a few days ago.

There is a upstream report about this, no reply yet: https://gitlab.gnome.org/GNOME/simple-scan/-/issues/508

Not sure if this is a upstream problem or something in Fedora.

Comment 2 Marc Muehlfeld 2025-09-17 13:35:36 UTC
Same problem here on F43 beta.

Output from "simple-scan --debug":
[+18,72s] DEBUG: app-window.vala:618: Saving to 'file:///home/mmuehlfeld/Gescanntes%20Dokument.png'
[+18,74s] WARNING: app-window.vala:641: Error saving file: Unhandled key while saving: x-dpi

Deleting ~/.config/simple-scan/ and ~/.cache/simple-scan/ also didn't help.

I temporarily installed simple-scan-48.1-1.fc42.x86_64.rpm on F43, but the problem persists (but the F42 package works on F42). The problem might be an incompatibility with a library.


Workaround: Scanning with scanimage works:
$ scanimage -d "<device>" --mode gray --format=png > scan.png

Comment 3 Marc Muehlfeld 2025-09-18 11:45:49 UTC
I used the SPEC file from 48.1-3 to create an RPM for simple-scan 49.0, but the problem is still there.
This seems to be another indicator that the issue is not directly in simple-scan.

Comment 4 Fedora Blocker Bugs Application 2025-09-23 17:09:43 UTC
Proposed as a Blocker and Freeze Exception for 43-final by Fedora user augenauf using the blocker tracking app because:

 If it's shipped by default, it should work.

Comment 5 Geraldo Simião 2025-09-23 17:41:55 UTC
As seen here https://gitlab.gnome.org/GNOME/simple-scan/-/issues/508#note_2557307 and in the subsequent comment, this is affecting Ubuntu 22.04.5 LTS and CachyOS with simple-scan version 49 too, so clearly an upstream bug. Sophie Herold cloned the issue to the component gdk-pixbuf / glycin -> https://gitlab.gnome.org/GNOME/gdk-pixbuf/-/issues/274#note_2557209

Comment 6 Matthias Clasen 2025-09-24 03:55:22 UTC
This is fixed in gdk-pixbuf 2.44.2

Comment 7 Kamil Páral 2025-09-24 10:38:56 UTC
Reassigning to gdk-pixbuf2, can we get a patched update, please?

Comment 8 Adam Williamson 2025-09-26 01:50:57 UTC
-3 blocker / +5 FE in https://pagure.io/fedora-qa/blocker-review/issue/1946 , marking rejected blocker, accepted FE.

Comment 10 Kamil Páral 2025-09-29 09:06:45 UTC
Great! We need a Bodhi update, please.

Comment 11 rwfranks 2025-09-29 10:30:08 UTC
Upgrading to 2.44.2-1.fc44 from rawhide rescued my urgent document scan.

Thanks to all involved.

Comment 12 Fedora Update System 2025-09-29 10:39:44 UTC
FEDORA-2025-3b64099856 (gdk-pixbuf2-2.44.2-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2025-3b64099856

Comment 13 Kamil Páral 2025-09-29 12:33:01 UTC
(In reply to Fedora Update System from comment #12)
> FEDORA-2025-3b64099856 (gdk-pixbuf2-2.44.2-1.fc43) has been submitted as an
> update to Fedora 43.
> https://bodhi.fedoraproject.org/updates/FEDORA-2025-3b64099856

Works fine, thanks

Comment 14 Fedora Update System 2025-09-30 00:19:05 UTC
FEDORA-2025-3b64099856 (gdk-pixbuf2-2.44.2-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.