Bug 467053 - Red and blue channels swapped on VNC client view.
Summary: Red and blue channels swapped on VNC client view.
Status: CONFIRMED
Alias: None
Product: krfb
Classification: Applications
Component: general (other bugs)
Version First Reported In: 22.12.3
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: George Goldberg
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2023-03-08 14:36 UTC by davemaxwell
Modified: 2025-10-18 19:08 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed/Implemented In:
Sentry Crash Report:

Attachments
Image from VNC client showing issue. Max RGB values in GIMP. (41.32 KB, image/png)
2023-03-08 14:36 UTC, davemaxwell 		Details
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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.