Your system information

• Steam client version (build number or date): latest version
• Distribution (e.g. Ubuntu): Manjaro Gnome
• Opted into Steam client beta?: [Yes/No] Yes
• Have you checked for system updates?: [Yes/No] Yes

Please describe your issue in as much detail as possible:

When I try to close or lock the screen, it is always waken up by Steam client.

Steps for reproducing this issue:

1. Try to lock the screen or close the screen.
2. The screen turn on immediately.