Bug 515854

Summary:	Isoimagewriter displays an un-actionable popup and I don't know why
Product:	[Applications] isoimagewriter	Reporter:	Aleksander Bobiński <aleksanderbobinski>
Component:	general	Assignee:	Unassigned bugs <unassigned-bugs-null>
Status:	REPORTED ---
Severity:	normal
Priority:	NOR
Version First Reported In:	25.12.2
Target Milestone:	---
Platform:	Arch Linux
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Screenshot of not helpful warning

Description Aleksander Bobiński 2026-02-11 07:18:58 UTC

Created attachment 189456 [details]
Screenshot of not helpful warning

SUMMARY
isoimagewriter displays the pop-up window with a warning (in the attachment). As a one-off isoimagewriter user I have no idea why this happens and what to do about it and the pop-up doesn't tell me. This is even worse with non-english locale because even googling the error message for help isn't effective.

STEPS TO REPRODUCE
1. Download an archlinux iso image and it's signature (Downloads/archlinux-2026.02.01-x86_64.iso  Downloads/archlinux-2026.02.01-x86_64.iso.sig)
2. Run isoimagewriter and select archlinux-2026.02.01-x86_64.iso
3. Wait

OBSERVED RESULT
Not actionable warning message displayed

EXPECTED RESULT
Either no warning or warning with steps on how to make sure isoimagewriter can verify signature.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma:  Arch Linux
KDE Plasma Version: 6.5.5
KDE Frameworks Version: 6.22.0
Qt Version:  6.10.2

ADDITIONAL INFORMATION
This also happened to my non-technical father when he was thinking about switching to Linux and he gave up so I ran dd for him. I've found this confusing UX being reported on the forums as well.
https://discuss.kde.org/t/iso-verification-issues-my-first-steps-are-difficult-and-confusing/40255