Using Pi touchscreen as the monitor

Request Help
1

Hi,
I’ve just completed the high res build and am trying to connect a pi touchscreen as the monitor. It works with a normal monitor. It works with the normal OS but not with Open Flexure OS imaged. I’m pretty new to pi in general and coding so I’m not an expert but wanted to ask if anyone had any ideas?

Thanks for your help!

2

Which version of the OpenFlexure OS are you using? v2.11 from the website? The full version or the ‘lite’ version?

3

I’m not certain on the version but the full version currently on the website here (
https://openflexure.org/projects/microscope/install)

4

That should then just work, in the same way that a normal screen does. It is fairly commonly used in thus way. The Pi does need the screen to be on when the Pi starts up, it will not recognise a screen plugged in later.

I think the latest Pi 5 and latest Pi OS now recognise new screens, but the older OS that OpenFlexure Server v2 uses and the Pi 3 or 4 I think still have the restriction, either from hardware or software.

So, make sure that the touchscreen powers up before the Pi.

5

So it’s a pi 4b and a pi touch display 2 if that makes any difference.

Thanks for your help by the way, yeah I figured it was a prettty standard config. Would it work to image the normal Pi Os and then install Open flexure program?

All the best

6

That would not work. In reality, that is what the OpenFlexure disk image is, but there are a lot of dependencies that would be very hard to work out yourself. It also needs to be built on the right version of the Pi operating system.

7

Fair enough! I didn’t have any luck with the above - do you have any other ideas? Other than that I’ll go back to the monitor

8

v2.11 is using a very old version of Raspbian (Buster), we are putting a lot of work into building a new updated version. However, they deprecated the entire camera stack we were using so it isn’t a quick process. So we are having to pretty much rebuild everything from the ground up.

The Pi Touch Display 2, requires Bookworm. We are very close to second alpha release of our v3 server and this will be on bookworm. But we haven’t yet also tested building a version with a display (we are only building lite version in this stage of dev).

Hopefully pretty soon we will have a GUI enabled test version of the v3, this should support Pi Touch Display 2.

Sorry about this.

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9

Thank you for your message and the hard work you guys put in! I’m happy to know the root cause and Ill see how my projects goes. Should be able to swap out for the older monitor in the meantime!

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