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WSAL23448 – 8inch DSI LCD (C)/en

Aus JW Tech Wiki

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The 8-inch DSI display with an IPS panel and ten-point capacitive touch is driven directly by a compatible Raspberry Pi via the DSI interface. It supports multiple Pi models and various Debian-based systems.

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Technical overview

  • IPS panel with a hardware resolution of 1280×800 pixels
  • Ten-point capacitive touch input via a tempered glass touch sensor with a hardness up to 6H
  • Optical bonding of the panel to improve image quality
  • Connection to the DSI1 port of the Raspberry Pi using a 12 cm DSI cable on newer models or a 15-pin FPC cable on older models
  • Power supply through a 4-pin header with an input voltage of 4.75–5.30 V and a minimum current of 0.5 A
  • Operating temperature range from 0 °C to 60 °C; storage temperature range from −10 °C to 70 °C
  • Supports the Bookworm, Bullseye, and Buster operating systems on the Raspberry Pi
  • Graphical brightness adjustment via the system menu or terminal command in the /sys/class/backlight sysfs directory
  • Display rotation in Trixie/Bookworm via the “Screen” → “Orientation” menu, while Bullseye/Buster may require manual rotation
  • Touch functionality can be disabled by adding the line disable_touchscreen=1 to config.txt

Commands and examples – verify before use:  

dtoverlay=vc4-kms-v3d
dtoverlay=vc4-kms-dsi-waveshare-panel,8_0_inch
git clone https://github.com/waveshare/Waveshare-DSI-LCD
sudo bash ./WS_xinchDSI_MAIN.sh 80C I2C0
sudo reboot
echo X | sudo tee /sys/class/backlight/*/brightness
xset dpms force off
wlr-randr --output DSI-2 --off
wlr-randr --output DSI-2 --on
disable_touchscreen=1

Notes and version constraints

  • Exact compatibility lists and power values must be verified before purchase or deployment.
  • If the motherboard is changed, the driver must be reinstalled because Pi4 and Pi3 require different driver files.
  • Synchronous rotation of display and touch is only supported on Trixie/Bookworm; on Bullseye/Buster, touch rotation must be set manually.
  • System updates may overwrite previously installed driver files, requiring reinstallation.
  • The wlr-randr commands apply only to Labwc and Wayfire interfaces, not to X11.
  • Long-term storage in hot, humid environments should be avoided as it can damage the display.

Source and revision record

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