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ID: TR10R09842
Added on: 2020-10-01
Last update: 2020-10-02
Affects: 6
Due to be solved in:  6.x
Platform: All Mac OS X Platforms
Product: NoMachine Server
Severity: Serious
Status: Open
White screen occurs when connecting to the macOS login window right after the local user logout

The first connection to the login window right after the local user on the Mac has logged out could hang with a white screen visible on the client. Every next connection will hang too but restarting the NoMachine server fixes the problem.

This issue occurs randomly: it occurs often on few machines and very rarely (or never) on most machines.

The following warnings are generally present in the session log on the server:

17898 20739 15:58:45 276.436 MirrorPoller: WARNING! Wrong pixel encoding string in context [C].
17898 20739 15:58:45 276.585 MirrorPoller: WARNING! Failed to get current mode for display 0.

Notify me when the TR is closed.