Differences

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--- hardware:iiyama [2016/01/13 14:15] – created danielb
+++ hardware:iiyama [2016/05/19 09:19] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-====== IIYAMA Touchscreen & Ubuntu ======
+====== openEASE Kiosk mode with IIYAMA Touchscreen ======
 ===== What you need =====
@@ Line 6: / Line 6: @@
   * VGA or DVI cable
   * USB cable
+  * Ubuntu 14.04
+===== Hardware Driver =====
-===== What works from the scratch =====
+Ubuntu 14.04 is shipped with required drivers that enable the screen to ...
-  * Screen display
+  * ... display the Desktop
-  * Mouse clicks and dragging with Button 1 pressed
+  * ... emulate mouse clicks and dragging events with Button 1 pressed
-===== What does not work from the scratch =====
+===== Issues =====
-  * Wrong offset when using multiple screens. See [[http://askubuntu.com/questions/141341/touchscreen-with-dual-monitors|FIX]] for a workaround. If both screens have the same dimensions and the touchscreen is left of your main monitor, this call should fix it:
+==== Wrong Offset ====
-    xinput set-prop 'ELAN Touchscreen' --type=float 'Coordinate Transformation Matrix' 0.5 0 0 0 1 0 0 0 1
+Using multiple screens yields in offset of emulated events.
+See [[http://askubuntu.com/questions/141341/touchscreen-with-dual-monitors|FIX]] for a workaround.
+If both screens have the same dimensions and the touchscreen
+is left of your main monitor, this call should fix it:
+  xinput set-prop 'ELAN Touchscreen' --type=float 'Coordinate Transformation Matrix' 0.5 0 0 0 1 0 0 0 1
 or if the touchscreen is right of your main monitor:
-    xinput set-prop 'ELAN Touchscreen' --type=float 'Coordinate Transformation Matrix' 0.5 0 0.5 0 1 0 0 0 1
+  xinput set-prop 'ELAN Touchscreen' --type=float 'Coordinate Transformation Matrix' 0.5 0 0.5 0 1 0 0 0 1
+==== Firefox touch events ====
+It seems that firefox lacks support for proper touch events.
+use chromium instead.
+===== Chromium Kiosk Mode =====
+In kiosk mode the user has limited access to the computer,
+only one fullscreen application allows interaction with the system.
+=== openEASE session ===
+Login managers are starting sessions after a user logs in.
+Such sessions usually start a window manager and possibly other
+default software services.
+in case of openEASE we only need a running web browser.
+Since firefox has issues with touch events we have to stick with chromium for now.
+Make sure chromium is installed:
+  sudo apt-get install chromium
+A window manager seems required. I prefer using a lightweight manager such as **xfwm4**.
+Make sure the WM is installed:
+  sudo apt-get install xfwm4
+Sessions are defined in .desktop files.
+Create a new openEASE session at **/usr/share/xsessions/openease.desktop** with following content:
+  [Desktop Entry]
+  Name=openEASE
+  Comment=This session logs you into openEASE
+  Exec=/usr/bin/openease.sh
+  Icon=
+  Type=Application
+  X-LightDM-DesktopName=Chromium
+  X-Ubuntu-Gettext-Domain=gnome-session-3.0
+**TODO** include openEASE icon
+The session references a shell script **/usr/bin/openease.sh**. Create this file with following content:
+  #!/bin/bash
+  xfwm4 &
+  xscreensaver -nosplash &
+  sleep 3
+  chromium-browser --app=https://data.open-ease.org --kiosk
+The session should now appear in the list of sessions in the login manager.
+=== Login Manager ===
+First create/select a dedicated unix user for guests and allow the user to
+log in without password:
+  sudo gpasswd -a guest nopasswdlogin
+Now make openEASE the default session of the system by editing **/etc/lightdm/lightdm.conf**,
+adding these lines:
+  [SeatDefaults]
+  user-session=openease
+  greater-show-manual-login=true
+=== Screensaver ===
+Install xscreensaver from ubuntu packages:
+  sudo apt-get install xscreensaver
+Start xscreensaver for configuration:
+  xscreensaver-demo
+Set the blank time to something reasonable such as 10 minutes.
+Then, kill the screensaver:
+  killall xscreensaver
+Open configuration file at *~/.xscreensaver* and add following "program":
+		    "openEASE" 	mplayer -shuffle -nosound -really-quiet	      \
+				  -nolirc -nostop-xscreensaver -wid	      \
+				  $XSCREENSAVER_WINDOW -fs -loop 0	      \
+				  $HOME/Videos/*			    \n\
-  * Mouse wheel scrolling works with some desktop applications. But not with firefox because firefox allows to select text. Firefox "Grab and Drag" extension can be used for websites. But it still does not allow "mouse wheel" zooming in openEASE.
+This "program" can be used to show videos that are available in the directory
+~/Videos/ while no one is using the touch screen.
+To select the video loop, open *xscreensaver-demo* again, select "Just one screensaver"
+and select "openEASE" from the list of screensavers.
-  * Dragging with other button then 1