Touch not working after installing into Argon One V2 case (SPI touchscreen)

[capt_zita]

Hi everyone,

I'm using the MakerPlane 5" touchscreen with a Raspberry Pi 4. The display is connected via HDMI for video output and uses **SPI over GPIO** for touch functionality. The driver in use is the GoodTFT `LCD5-show` (specifically `LCD5-show/LCD5_5inch_HDMI`).

When I connect the display **directly to the Pi’s GPIO header**, everything works fine – including touch.
However, after installing the Pi into an **Argon One V2 case** (which includes an internal HDMI rerouting and a GPIO breakout), the **touch input no longer works**. HDMI output still works as expected.

### What I’ve verified so far:

* SPI is correctly enabled in `/boot/config.txt` (`dtparam=spi=on`)
* I removed `dtoverlay=goodix` (since this touchscreen uses SPI, not I²C)
* No touchscreen input device appears under `/dev/input/eventX`
* `dmesg` shows **no errors** related to SPI or touch after removing `goodix`
* **Touch input works again immediately** when I connect the display directly to the Pi without the Argon case
* 3.3 V and 5 V are present and stable on the GPIO header
* I am using GPIO 13 for fan control and GPIO 4 for the Argon power button → no known SPI conflicts

### Suspected cause:

The **Argon One V2 GPIO extension** may not pass through all necessary SPI pins for touch functionality:

* GPIO 19 (MOSI)
* GPIO 21 (MISO)
* GPIO 23 (SCLK)
* GPIO 26 (CS)
* GPIO 22 (IRQ)

### Question:

Has anyone encountered this issue when using SPI-based touchscreen displays with the Argon One V2 case?
Are all GPIO pins truly passed through on the Argon header, or is a custom wiring solution needed to restore SPI touch functionality?

Thanks in advance!
Daniel

[TerryH]

Did you get things sorted out Daniel?
I'm not familiar with the Argon One V2 case (would be surprised if all 40 pins are not pass through)...but I do use I2C on my Pi 5B for the Makerplane touch screen display.
I did have some initial config issues with the display so I ended up just using the 9 pins indicated on the back of the display and the default goodix dtoverlay. I'm only using SPI for a Waveshare CAN hat (SPI0 only as SPI1 conflicts with my Audio DAC Shim).
So far everything is working ok.
Terry