tablet_tweaks.rst

Aakash specific changes

1. To disable edge resize(top right corner) and top resize in openbox windows edit the file ~/.config/openbox/lxde-rc.xml, and look for this section and update the content of action name filed to Focus as shown

   ....
      <context name="Top">
   <mousebind button="Left" action="Press">
     <action name="Focus"/>
     <action name="Raise"/>
     <action name="Unshade"/>
   </mousebind>
   <mousebind button="Left" action="Drag">
     <action name="Focus">
      <context name="Right">
   <mousebind button="Left" action="Press">
    <action name="Focus"/>
     <action name="Raise"/>
   </mousebind>
   <mousebind button="Left" action="Drag">
     <action name="Focus">
       <edge>right</edge>
       <context name="TRCorner">
   <mousebind button="Left" action="Press">
     <action name="Focus"/>
     <action name="Raise"/>
     <action name="Unshade"/>
   </mousebind>
   <mousebind button="Left" action="Drag">
     <action name="Close"/>
   ....
   

   Reconfigure openbox to see the effect

   openbox --reconfigure
   

2. To open all windows maximized except dialogs & onboard keyboard add this content in the same above file

   <applications>
   
   <application class="*">
   <maximized>yes</maximized>
   </application>
   
   <application type="dialog">
   <maximized>no</maximized>
   </application>
   
   <application name="onboard">
   <maximized>no</maximized>
   </application>
   
   </applications>
   

   In this case we have to reload openbox or reload lxdm

   sudo service lxdm restart
   

3. To increase the width of menu items edit gtk2.0 theme found in /usr/share/themes/xyzTheme/gtk-2.0/gtkrc. Example

   xthickness = 5
   ythickness = 9
   engine "clearlooks"
      {
              radius = 15.0
      }
   
   “clearlooks-menubar”
    xthickness = 10
    ythickness = 5
   

4. (Auto)Detect touch controllers for Aakash

   Till date, four different types of touch controllers works on Aakash. These are: Focal Tech(ft5x), Goodix(gt811), Gslx680, & Elan(ektf2k). In a conventional GNU/Linux system, the hardware is auto-detected at boot time. However due to script.bin, which passes parameters to kernel about various hardware configuration, these modules are not auto-loaded at boot time. Every time SDcard is inserted, the relevant script.bin should be loaded so that exact touch driver is loaded. This is done by a very simple bash script which does this job at boot time.

   The script can be downloaded from here. This script is called by the file /etc/rc.local at user runlevel

   #!/bin/sh -e
   #
   # rc.local
   #
   # This script is executed at the end of each multiuser runlevel.
   # Make sure that the script will "exit 0" on success or any other
   # value on error.
   #
   # In order to enable or disable this script just change the
   execution
   # bits.
   #
   # By default this script does nothing.
   
   # Added for Aakash, setting 777 permissions
   #chmod 777 /dev/ump
   #chmod 777 /dev/mali
   
   ...
   
   
   bash /opt/github/probe_tc/probe_tc.sh
   exit 0
   

   For Elan(ektf2k) driver to work properly, some changes has to be made in /usr/share/X11/xorg.conf.d/ directory.

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