When I give command
pi@MagicMirror:~ $ WAYLAND_DISPLAY='wayland-1' wlr-randr --output HDMI-A-1
HDMI-A-1 "Samsung Electric Company SyncMaster 0x00000001 (HDMI-A-1)"
Physical size: 700x390 mm
Enabled: yes
Modes:
720x400 px, 70.082001 Hz
640x480 px, 59.939999 Hz
640x480 px, 60.000000 Hz
640x480 px, 66.667000 Hz
640x480 px, 72.808998 Hz
640x480 px, 75.000000 Hz
720x480 px, 59.939999 Hz
720x480 px, 59.939999 Hz
720x480 px, 60.000000 Hz
720x480 px, 60.000000 Hz
720x576 px, 50.000000 Hz
800x600 px, 60.317001 Hz
800x600 px, 72.188004 Hz
800x600 px, 75.000000 Hz
832x624 px, 74.551003 Hz
1024x768 px, 60.004002 Hz
1024x768 px, 70.069000 Hz
1024x768 px, 75.028999 Hz
1280x720 px, 50.000000 Hz
1280x720 px, 50.000000 Hz
1280x720 px, 59.939999 Hz
1280x720 px, 60.000000 Hz
1280x720 px, 60.000000 Hz
1152x864 px, 75.000000 Hz
1280x800 px, 59.910000 Hz
1440x900 px, 59.901001 Hz
1280x1024 px, 60.020000 Hz
1280x1024 px, 75.025002 Hz
1600x900 px, 60.000000 Hz
1680x1050 px, 59.882999 Hz
1920x1080 px, 23.976000 Hz
1920x1080 px, 24.000000 Hz
1920x1080 px, 25.000000 Hz
1920x1080 px, 29.969999 Hz
1920x1080 px, 30.000000 Hz
1920x1080 px, 50.000000 Hz
1920x1080 px, 50.000000 Hz
1920x1080 px, 59.939999 Hz
1920x1080 px, 60.000000 Hz
1920x1080 px, 60.000000 Hz (preferred, current)
Position: 0,0
Transform: 270
Scale: 1.000000