Telemetry Viewer v0.7

July 17, 2020

Telemetry Viewer v0.7 Changelog (2020-07-17)

Raspberry Pi Notes

Telemetry Viewer will only work on the Pi 4. Older Pi's don't support some of the OpenGL ES features that are required, and implementing those features on the CPU would be slow.

The Pi 4 GPU is supposedly capable of OpenGL ES 3.2, but the drivers only fully support ES 3.1 and partially support ES 3.2. Telemetry Viewer requires "geometry shaders" which are part of ES 3.2.

As of today, the version of Mesa included in "Ubuntu MATE 20.04 Raspberry Pi 32-bit" supports geometry shaders, but the version of Mesa in "Raspberry Pi OS" does not. If you use Ubuntu, all you need to do is install Java ($ sudo apt install default-jre) and you are ready to use Telemetry Viewer.

If you want to use Raspberry Pi OS, try running Telemetry Viewer. Maybe you'll get lucky and by the time you read this an updated Mesa will already be in Raspberry Pi OS.

If you get GLSL errors (like the screenshot above) you will need to download Mesa from their git repo, then compile it and install it. You will also need to set an environment variable every time you want to run Telmetry Viewer. I do not recommend this for beginners, but here is how I got it working:

$ sudo pip3 install meson mako $ sudo apt install libdrm-dev llvm bison flex libxext-dev libxdamage-dev libxcb-glx0-dev libx11-xcb-dev libxcb-dri2-0-dev libxcb-dri3-dev libxcb-present-dev libxshmfence-dev libxxf86vm-dev libxrandr-dev ninja-build $ git clone $ cd mesa $ nano meson_options.txt set platforms to ['drm', 'x11', 'surfaceless'] and set gallium-drivers to ['kmsro', 'v3d', 'vc4', 'swrast'] $ mkdir build $ cd build $ meson .. $ sudo ninja install

To run Telemetry Viewer you will need to set an environment variable to select the new Mesa you just installed:

$ LD_LIBRARY_PATH="/usr/local/lib/arm-linux-gnueabihf" java -jar /path/to/TelemetryViewer_v0.7.jar

Telemetry Viewer v0.7 Demo Video


Executables (.jar) and source code (.zip) can be downloaded at or the project can be viewed at