commit - ef5589ffdbfb09854993df666cf9ef4f697015f6
commit + 9c5da152d63c161436ce4580baa2dbbdee683d33
blob - 3eedb53c3c4e6107c27ff5359551c3d7fc32fdd5
blob + c86fd84e4875b3255ce5e732b284df24002773a8
--- README.md
+++ README.md
@@ -1,13 +1,13 @@
 dtoggle
 =======
 
-Quick-n-dirty hack to use xrandr to configure internal/external displays
+Small bash script that uses xrandr to configure internal/external displays.  I use it here with Arch Linux and i3 whenever I connect one or more external displays2
 
-Usage
------
+Command Line Options
+--------------------
 
 ```
-dtoogle.sh [-ceix] [-mnv] [-lr] -p profile
+dtoogle.sh [-ceix] [-hmnv] [-lr] -p profile
 
 Display Options:
  -c           Clone screen on all displays
@@ -16,6 +16,7 @@ Display Options:
  -x           Extend screen to all displays [default]
 
 General Options:
+ -h 		  Show this help
  -m           Show all available modes
  -n           Dry run. Do not run xrand.  Implies -v
  -v           Be more verbose
@@ -27,3 +28,48 @@ Position:
 Profile:
  -p profile   Enable the specified profile
 ```
+
+Usage
+-----
+
+1. Clone the repository and copy dtoogle to a location in your `$PATH`
+2. Open the file in a text editor, look for the `choose_profile()` function and change the profiles to your needs or add new ones.  I included my profiles for home, work and projector.  In order to get the names of the displays, connect them and run `dtoogle -m`. Look for the strings that say "connected". Add the name of your internal display to `INTERN` and all names of your external displays to `EXTERN[0]` up to `EXTERN[n]`. Note: The order of the extries is important, i.e. entry number n is either left of right (depending on the option) of number (n+1)!
+
+```bash
+function choose_profile()
+{
+  [...]
+  case "$PROFILE" in
+    # Home profile: Internal on, external extended
+    home)
+      INTERN="LVDS1"
+      EXTERN[0]="HDMI1"
+      ;;
+    [...]
+    # -----------------------------------------------------------------------
+    # Add your own profiles here.
+    # -----------------------------------------------------------------------
+    # name)
+    #   INTERN="LVDS1"
+    #   EXTERN[0]="VGA1"
+    #   ...
+    #   EXTERN[n]="VGAn"
+    #   ;;
+    # -----------------------------------------------------------------------
+```
+3. Check the command line options with `dtoogle -h` and enjoy.
+
+Bugs
+----
+
+None.  Nevertheless, I you find something annoying, send me an email.
+
+License
+-------
+
+GNU GPL.
+
+Author
+------
+
+Matthias Schmidt <xhr giessen.ccc.de>