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PI4 - Display 1

Posted: Thu Oct 16, 2025 8:24 am
by M0REQ
Hi all, has anyone got Langstone V3 working on a PI4 with Display 1.

I am using a PI 4B
an official 7" PI Touchscreen (V1)
PIOS 64bit Bookworm Lite
Adalm-Pluto

Once installed I am getting Segmentation Faults for the Screen_Message command when i run ./run.

Any help greatly appreciated.

Eric
M0REQ

Re: PI4 - Display 1

Posted: Thu Oct 16, 2025 9:19 am
by M0REQ
OK, I think I fixed it. I met Colin last night and he mentioned something about VC4 driver so i commented it out in config.txt as so:

# Enable DRM VC4 V3D driver
# dtoverlay=vc4-kms-v3d
# max_framebuffers=2

And it is working now.

Thanks for reading.
Eric
M0REQ

Re: PI4 - Display 1

Posted: Fri Oct 17, 2025 7:50 pm
by g4eml
This was caused by an error in the installation script.
It has now been corrected and the VC4 driver is now commented out during the Langstone install.

Thanks to Eric for pointing this out.

Colin G4EML