Bug 467053

Summary:	Red and blue channels swapped on VNC client view.
Product:	[Applications] krfb	Reporter:	davemaxwell
Component:	general	Assignee:	George Goldberg <grundleborg>
Status:	CONFIRMED ---
Severity:	normal	CC:	im.tech.tac
Priority:	NOR
Version First Reported In:	22.12.3
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Image from VNC client showing issue. Max RGB values in GIMP.

Description davemaxwell 2023-03-08 14:36:37 UTC

Created attachment 157110 [details]
Image from VNC client showing issue. Max RGB values in GIMP.

SUMMARY
***
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See https://community.kde.org/Guidelines_and_HOWTOs/Debugging/How_to_create_useful_crash_reports
***

Red and blue are swapped sharing a Wayland session.

STEPS TO REPRODUCE
1. Connect to a KRFB session running on Wayland
2. 
3. 

OBSERVED RESULT

The rendered image has the red and blue channels swapped.

EXPECTED RESULT

Red and blue values aren't swapped with one another.

SOFTWARE/OS VERSIONS
Windows:  UltraVNC client 1.3.8.1
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.27.2-1
KDE Frameworks Version: 5.103.0-1
Qt Version:  5.15.8+dfsg-3

ADDITIONAL INFORMATION

Machine is running current dist upgraded Debian Sid.

Comment 1 Tech-Tac 2025-10-18 19:08:13 UTC

Can reproduce with Krfb 25.08.2 on Plasma 6.4.5, with the noVNC web client.