Hello,
Thank you for your message.
Yes, such issues with the remote screen might be caused by the laptop lid being closed or by the screensaver with a black screen being active on the remote machine.
Please try enabling the
Use legacy capture mode feature in the
Host Settings -> Other tab. After enabling the feature please also make sure to restart Host in order for the changes to be applied. This way you should be able to see the remote screen in your Viewer even when the laptop lid is closed.
You can also edit the Host Settings remotely via the
Remote Settings feature.
Hope that helps.