game mode not work on my tv

I need help I want the game mode to show on my tv I followed the documentation and put OUTPUT_CONNECTOR=HDMI-A-1
In the nano ~/.config/environment.d/10-gamescope-session.conf file

But it doesn't work, am I setting it right?
This is the output of the kscreen

Output: 2 HDMI-A-1
enabled
connected
priority 1
HDMI
Modes: 10:3840x2160@30! 11:4096x2160@30 12:4096x2160@25 13:4096x2160@24 14:4096x2160@24 15:3840x2160@30 16:3840x2160@25 17:3840x2160@24 18:2560x1440@60 19:1920x1080@60* 20:1920x1080@60 21:1920x1080@50 22:1920x1080@30 23:1920x1080@25 24:1920x1080@24 25:1280x1024@60 26:1440x900@60 27:1280x720@60 28:1280x720@60 29:1280x720@50 30:1024x768@60 31:800x600@60 32:720x576@50 33:720x480@60 34:640x480@60 35:640x480@60
Geometry: 0,0 1920x1080
Scale: 1
Rotation: 1
Overscan: 0
Vrr: incapable
RgbRange: unknown
HDR: incapable
Wide Color Gamut: incapable
ICC profile: none
Color profile source: EDID
Color power preference: prefer accuracy
Brightness control: supported, set to 100% and dimming to 100%
salamander@192:~$
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