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https://issues.apache.org/jira/browse/GUACAMOLE-1238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Jumper closed GUACAMOLE-1238.
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Resolution: Invalid
I can only reproduce this behavior when connecting with a version of
libvncclient or Guacamole that does not support username/password
authentication for VNC.
Testing with Apache Guacamole 1.2.0 and 1.3.0, and authenticating with the VNC
server using a username and password, things seem to work fine. I don't believe
there is a bug on the Guacamole side in this case.
> Black screen when using VNC to connect to macOS Big Sur
> -------------------------------------------------------
>
> Key: GUACAMOLE-1238
> URL: https://issues.apache.org/jira/browse/GUACAMOLE-1238
> Project: Guacamole
> Issue Type: Bug
> Components: guacamole, guacamole-client
> Affects Versions: 1.2.0
> Reporter: Daniel Fratamico
> Priority: Minor
>
> Since upgrading my macOS Catalina iMac to Big Sur, I can no longer establish
> a VNC connection to the device. I am running Guacamole 1.2.0 and this was
> working just fine before upgrading to Big Sur. It looks as if Big Sur updated
> the VNC server/client and VNC viewers may need to be updated to work with Big
> Sur.
> As an example, Real VNC released Viewer version 6.20.817 to address this
> issue:
>
> [https://help.realvnc.com/hc/en-us/articles/360002253138-Release-Notes#ios-viewer-3-9-3-released-0-2]]
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