I posted this back in September: it may or may not help you:
ok. I have SOLVED all of this.
I put this in the 4dsystems forum, and I repost it here.
The 4dsystems beaglebone cape with Ubuntu + LXDE is working just fine, and here is how I did it:
This is for ubuntu 14.04 and lxde, there is a utility named xinput_calibrator for x11
steps to make this work:
Note: I use the lxde window manager, so you might have to change this for your wm:
ssh into the beaglebone:
need to get a virtual keyboard up, and get past the login screen:
- as root, do an apt-get install xvkbd (so that you can run the terminal and use touchscreen for giving commands
- as root, edit /etc/lxdm/lxdm.conf:
uncomment and set autologin username to enable autologin
autologin=ubuntu (or whatever username you have made)
uncomment and set timeout to enable timeout autologin,
the value should >=5
- as the user (ubuntu, or other user edited as autologin= in the lxdm.conf file):
so in the $HOME/.config/lxsession/LXDE/autostart I added this: xvkbd -minimizable -no-keypad -geometry +150+150 &
the above gets the virtual xvkbd up on the screen (if not running with a keyboard, like me)
now: shutdown the bbb, and attach to the LCD cape, and boot up to the screen.
(1) the login screen should come up, wait for 5 seconds for the login to time out, then wait for lxde to start up
(2) you should see the screen come up with the virtual keyboard
now, start a terminal. hopefully it is an icon, if not, make it one and start again
once a terminal is up, focus to the terminal, then focus to the virtual keyboard
- sudo su -
now, as root do:
apt-get install xinput-calibrator
run xinput_calibrator and you will get something like the following:
Option “Calibration” “121 4028 303 3852”
Option “SwapAxes” “0”
edit the /etc/X11/xorg.conf file: and add that above section to it.
shutdown and boot up again.
The screen should be calibrated correctly!
I hope this helps everyone. Whew!
I am ECSTATIC!