fix resolution change when multiple displays are connected

Slax/debian/modules/03-desktop/rootcopy/usr/bin/fbscreensize

@@ -3,13 +3,15 @@
 SIGNAL=~/.fehbg
 rm -f $SIGNAL
 
-OUTPUT=$(xrandr 2>/dev/null | grep 'connected' | cut -d " " -f 1)
+OUTPUT=$(xrandr 2>/dev/null | grep -iv disconnected | grep -i 'connected' | head -n 1 | cut -d " " -f 1)
 MODE=$1
 
-xrandr --output $OUTPUT --mode $MODE
+xrandr --output $OUTPUT --mode $MODE -s $MODE
 
 while [ -e $SIGNAL ]; do
    sleep 0.1
 done
 
+sleep 1
+
 killall -SIGUSR1 compton