All Pages
Embedded Linux Cells

Introduction

Embedded Linux Cells are displays where the Linux operating system is meant to be used by the end-users for running applications. Embedded Linux models have a model type ending in "L", for example MT420L and MT550L. Compared to the stackable models the embedded Linux models have more a powerful graphics card, processor and a much larger mass media in the form of an SSD.

Operation

In the embedded Linux displays the internal Linux operating system stays visible by default and the displayed image comes from the internal software. The tracking software is started automatically when the display is turned on and it runs as a background process all the time.

To adjust the tracking parameters one can bring up the on-screen display (OSD), which works just like in the stackable models. After using the OSD to adjust parameters, one can quit the OSD by pressing 'q' or 'esc' on the keyboard.

If one wants to use an embedded Linux Cell with an external computer then the graphics input needs to be changed from the internal DVI to the external computer. This can be done from OSD or using Site Manager.

Shutting Down the Cell

The embedded Linux models have a full operating system which needs to be shut down cleanly. This is done by using the shutdown-option in the operating system menus. If the Cell is shut down by cutting the power from the power switch, then the hard disk may be corrupted.

Internal Operating System

The internal operating system in the Embedded Linux models is Debian Linux. This is a customized version of the "Debian stable" release that includes most software packages from the Debian stable release, along with some updated packages (the Linux kernel and its drivers for example).

Upgrading the Graphics Drivers

The graphics drivers in the displays are locked and they should not be upgraded by the user. Upgrading the graphics drivers may break the computer vision engine.

Upgrading the Operating System

The Linux operating system in the embedded Cells should not be upgraded. Moving from the default version of the operating system to a newer one will break many of the settings that the touch tracking engine uses. Upgrades can only be performed by MultiTouch support personnel.