use xrandr names without dashes and prompt_hostname instead of hostname

.config/fish/config.fish

@@ -6,6 +6,6 @@ bind \cg cancel
 
 # to synch current directory betweeen Emacs an fish shell in vterm
 function fish_vterm_prompt_end;
-    printf '\e]51;A'(whoami)'@'(hostname)':'(pwd)'\e\\';
+    printf '\e]51;A'(whoami)'@'(prompt_hostname)':'(pwd)'\e\\';
 end
 function track_directories --on-event fish_prompt; fish_vterm_prompt_end; end

.xsession

@@ -3,7 +3,7 @@
 . ~/.profile
 
 xrandr --auto
-xrandr --output HDMI-1 --right-of DP-1
+xrandr --output HDMI1 --right-of DP1
 xsetroot -solid '#424242'
 xrdb -merge ~/.Xresources
 setxkbmap pl -option ctrl:nocaps