Fix ubuntu debian xfce tearing (4k full hd 60 fps) nvidia

fix-tearing.txt

mv ~/.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml ~/.config/xfce4/xfconf/xfce-perchannel-xml/displays.xml.bkp;
echo $(xrandr | sed -nr '/(\S+) connected (primary )?([0-9]+x[0-9]+)(\+\S+).*/{ s//\1: \3 \4 { ForceFullCompositionPipeline = On }, /; H}; ${ g; s/\n//g; s/, $//; p }');


# add this to Section "Device"
    Option         "NoLogo" "1"
    Option         "RenderAccel" "1"
    Option         "TripleBuffer" "true"
    Option         "MigrationHeuristic" "greedy"
    Option         "AccelMethod" "sna"
    Option         "TearFree"    "true"


# add this to Section "Screen"

    Option       "metamodes" "HDMI-0:3840x2160_60 +0+0 { ForceFullCompositionPipeline = On }"
    # Option         "metamodes" "HDMI-0:3840x2160 +0+0 { ForceFullCompositionPipeline = On }"