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For supported interfaces and capabilities, see QCS6490 display specifications.

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Set up the high-definition multimedia interface (HDMI) display

The display subsystem provides the Weston and Wayland compositors, along with libdrm APIs, all of which interact with the DPU driver to render the Wayland client applications. Use the sample test applications to evaluate the basic rendering of Wayland applications and to connect to the HDMI display.
Figure: HDMI setup workflow

Figure: HDMI setup workflow

Prerequisite
  • Connect the device to the HDMI display.
Verify the HDMI display setup
  1. Connect the display using an HDMI cable.
    Figure: HDMI cable connection

    Figure: HDMI cable connection

  2. Power on the device. Weston starts automatically during boot.
  3. Verify the display. The following Weston flower pattern displays on the screen, indicating a successful setup:
    Figure: Weston flower pattern
    If you are experiencing a no-display screen issue on HDMI, see Debug the HDMI display.
After you have set up the HDMI display, run the following test applications to verify the display functionality:

Run Weston simple EGL

Verify composition and rendering of frames on your display.

Run DRM modetest

Verify the display driver topology and DPU paths.