PiTPG - Raspberry Pi test pattern generator for ColourSpace

ConnecTED

At least on some 2+ year old posts, there were recommendation that LG internal LUT calibration should always be done with RGB, not YCbCr. (Other use cases varied depending what was asked.) My assumption is that the limitation was on LG side and it was not TPG related.

Does this limitation still exist with PiTPG?

When you power on the Pi, a black screen appears; then the boot process completes, and the following screen is displayed.

From there, you can click to connect from ColourSpace if you use a USB-C connection, or enter the IP address in ColourSpace to connect.

Hi Steve, thanks for the update. I currently have ColourSpace v2.0.0.2424 ( 5 September 2026) installed and I'm seeing an error in the Connected Hardware input:

This PiTPG needs a ColourSpace version that uses PiTPG protoco2. Update ColourSpace.

Is there a more recent version ? I downloaded from the link you provided earlier in the thread.

Please read the posts at the beginning of this thread.

Steve

You need to use RGB-EXTENDED for SDR when profiling the LG OLED internal LUT, no matter which TPG model you choose.

You can use YCbCr as an alternative for verification.

ConnecTED
Please let us know when it's possible to submit a request for the Ted's version.

I've been working over the past day with an Alpha version of ColourSpace set up to use the PiTPG, along with the PiTPG version for download in the General Downloads area. As Steve has said, it is fast, switching patterns with a rapidity subject only to the reading speed of your meter. I'm using the single USB-C cable connection, and no manual configuration was necessary to get that up and running. It also will display ColourSpace built-in patterns from the "Test Patterns" button on the Manual Measure page. With its ability to be used on the Pi 4, 400, or 5, this is a welcome addition to the toolkit!
PS: I'm running a Pi4.

I also had the opportunity to test PiTPG on a Raspberry P4 with ColourSpace.
This is clearly a new, in-house development and not an update to PGenerator. Great emphasis was placed on ease of use and reliability.
Based on the EDID information read from the display, the user is presented only with options that are technically feasible with PiTPG and the display.
Finally, there's just one place—namely, in ColourSpace—where you can configure the key settings. This is great and works very well even in the alpha version.
PiTPG is incredibly easy to use and does exactly what it's supposed to. And if you try to set something incorrectly, it gives a clear warning.
During installation, you should follow the instructions exactly and use the Raspberry Pi Imanager for flashing.
I tested the connections via Ethernet (RJ45), Wi-Fi (2.4 GHz), and USB-C. In all cases, performance was absolutely stable, and there was no flickering whatsoever when the image was loading.

This is a very welcome development! PiTPG looks like a significant step forward in terms of both functionality and ease of use compared to PGenerator. Great work!
Just to clarify, as a ColourSpace ZRO user, am I correct in understanding that PiTPG will be available for a one-time £10 download fee, with future updates requiring a separate download fee?

Thanks!

Just wanted to add that this sounds fantastic, can't wait!

Archttila
Already answered in an earlier post in this thread.

Steve

I'm having a small problem connecting to PiTPG via Ethernet. The Ethernet connection to the router works perfectly, but the direct connection to the PC fails. (The PC is connected to the Internet via Wi-Fi.) This might be due to a misconfiguration of my PC's Ethernet adapter, but it worked perfectly with PGenerator. Maybe someone could give me some advice on how to fix this. That would be great. I'm using the version 2.0.3

Wolf91074
My PGen connected via USB‑C, and PiTPG connects the same way. There are no problems. Do you have an active HDMI connection when you try to connect PiTPG?

Yes, USB-C to USB-C works for me, too. But that's not really an option, because my laptop only has one USB-C port, and it's also used for power. If I connect the PiTGP to it, the laptop supplies power to the PiTGP through the USB-C port, and the laptop's battery runs out after a short time.

Wolf91074
I have a PiTPG connection (USB‑C), but the laptop has a (USB‑A) port.