Only black screen and movable cursor displayed on client

[SteveW]

I am using the current free version of NoMachine NX client and server (9.3.7). The problem arises only when attempting to connect from an Ubuntu 24.04 client to an Ubuntu 26.04 (beta) server. I can connect without problems to Ubuntu 24.04 servers but when trying to connect to an Ubuntu 26.04 server I only see a black screen with a movable mouse cursor. The mouse and keyboard both function fine as can be seen when watching the display attached to the 26.04 server. Both client and server are using the GNOME desktop.

I tried disabling both hardware encoding and acceleration on the server but this had no effect on the problem.

The server logs and player logs are attached.

Attachments:

1. server-logs_2026-03-17.zip
2. player-logs_2026-03-17.zip

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