https://bugs.kde.org/show_bug.cgi?id=492265

            Bug ID: 492265
           Summary: KRDC receives Authentication Failed from KRFB
    Classification: Applications
           Product: krdc
           Version: 24.05.2
          Platform: Other
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: VNC
          Assignee: uwol...@kde.org
          Reporter: freekdekru...@kde.nl
  Target Milestone: ---

I have KRFB started on a Raspberry Pi 4B in a XFCE session on Leap 15.6. I see
KRFB is listening on port 5900. I start KRDC on a Tumbleweed x86_64 system in
the same LAN and start a VNC session to the RPi4 using the IP address of that
system. Using lsof on the RPi4, I see there is an established session between
KRFB and KRDC. I enabled unguarded access in KRFB, so no prompt for allowing
access appears.

Entering the password shown in the KRFB in the KRDC window gives the error:
Authentication failed.

In .xsession-errors on the RPi4 I see:

libEGL warning: DRI2: failed to authenticate
libEGL warning: MESA-LOADER: failed to open zink: /usr/lib64/dri/zink_dri.so:
cannot open shared object file: No such file or directory (search paths
/usr/lib64/dri, suffix _dri)

SUMMARY
KRDC receives Authentication Failed from KRFB

STEPS TO REPRODUCE
1. Start KRFB on remote system on LAN and note password
2. Start KRDC on local system on LAN
3. Start connection to KRFB system and fill in the password

OBSERVED RESULT
Authentication failed

EXPECTED RESULT
Authentication succeeded.

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.10.5
KDE Plasma Version: 6.1.4
KDE Frameworks Version: 5.116.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION

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