this code
xrandr --output HDMI-1 --set "scaling mode" "Full aspect"
gave me this error
X Error of failed request: BadName (named color or font does not exist)
Major opcode of failed request: 140 (RANDR)
Minor opcode of failed request: 11 (RRQueryOutputProperty)
Serial number of failed request: 30
Current serial number in output stream: 30