VNC connection fails with "Invalid Protocol"
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SUSE Linux Enterprise Desktop 11 (SLED 11)
Remote Administration (VNC) enabled.
VNC client or browser being used to establish the VNC connection.
The error may go away after some time (15-30 minutes) or a reboot may clear the error.
Test the VNC connection to see if the problem is resolved.
The /tmp/.X11-unix/X* are the socket files created by the X server when it starts up for the specific display number.
When an instance of the X server is terminated properly it will remove these files, indicating that the display is no longer in use. If for some reason the X server is not terminated properly then these files can be left behind and eventually cause the X server to report that there are no displays available.
The message reported by the VNC client does not give any indication of the problem. The only place to see the display error is in a packet trace.
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- Document ID:7000039
- Creation Date: 21-Oct-2013
- Modified Date:03-Mar-2020
- SUSE Linux Enterprise Desktop
- SUSE Linux Enterprise Server
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