The monitor turns off when you start any game

[LibertyGM]

Describe the bug When I run Moonlight and connect to the game on the main monitor, the X11 settings get knocked out. The main monitor shuts down (software) and everything goes to the secondary monitor.

If I run Moonlight on the secondary monitor, everything works fine. After starting on the second monitor, I move the window to the main with Win+Shift+Side arrow.

Steps to reproduce

1. Starting Moonlight.

Affected games Happens to all games.

Moonlight settings (please complete the following information)

• Changed only the encoding mode to Hardware H265.
• Does the problem still occur after reverting settings back to default? − Yes

Client PC details (please complete the following information)

• OS: Arch Linux Plasma
• Moonlight Version: 4.2.1
• GPU: Nvidia 3070Ti

Server PC details (please complete the following information)

• OS: Windows 11
• GeForce Experience version: 3.25.1.27
• Nvidia GPU driver: 516.94
• Antivirus and firewall software: No

[cgutman]

Does it happen if you stream in borderless windowed mode instead of full-screen?

[LibertyGM]

I recorded a log of how the error happens. I used "moonlight >> /disks/D/imLEGR/test/log_Wayland.txt" log_Wayland.txt

[cgutman]

This is probably an SDL bug or some bad interaction between SDL and Plasma.

Can you try the borderless windowed option and see if it fixes the issue?

[LibertyGM]

In the "window without frame" mode it works fine. Can you please tell me which mode is more productive for Moonlight? Full-screen or frameless window mode?

It's a pity the mouse is now out of the game goes to the second monitor. In window mode without frames the mouse does not linger in the Moonlight window

[cgutman]

Either mode should give similar performance.

If you want the mouse to stay in the Moonlight window, you can press Ctrl+Alt+Shift+L to lock it in the window.

[LibertyGM]

Thanks