> ## Documentation Index
> Fetch the complete documentation index at: https://dragonwingdocs.qualcomm.com/llms.txt
> Use this file to discover all available pages before exploring further.

# IQ-9075

<Note>
  For supported interfaces and capabilities, see [IQ-9075 display specifications](display-specs-iq9075).
</Note>

## Set up the DisplayPort

The display subsystem provides the Weston and Wayland compositors, along with `libdrm`, which interact with the DPU driver to render the Wayland client applications. Use the sample test applications to evaluate the basic rendering of the Wayland applications and to connect to the DisplayPort.

<div className="flex flex-col items-center gap-2">
  <img src="https://mintcdn.com/qualcomm-prod/h7j64QujhJHkLxyj/Technologies/Display/media/qli-display/set_up_HDMI_2_lemans_colourchange.svg?fit=max&auto=format&n=h7j64QujhJHkLxyj&q=85&s=bacc19cfaa8d681b335c5138aa30ab08" alt="Figure: DisplayPort setup workflow" width="1122" height="212" data-path="Technologies/Display/media/qli-display/set_up_HDMI_2_lemans_colourchange.svg" />

  <p className="text-sm text-gray-700">**Figure: DisplayPort setup workflow**</p>
</div>

**Verify the DisplayPort setup**

1. Connect the DisplayPort cable to the eDP0 connector as shown in the following figure:

   <div className="flex flex-col items-center gap-2">
     <img src="https://mintcdn.com/qualcomm-prod/mGpYCfBsZaJSFIEo/Technologies/Display/media/qli-display/Lemans_dip_switch_and_rb8.png?fit=max&auto=format&n=mGpYCfBsZaJSFIEo&q=85&s=4193b2d20d41d29b0a90267c39993836" alt="Figure: DisplayPort setup" width="550" height="619" data-path="Technologies/Display/media/qli-display/Lemans_dip_switch_and_rb8.png" />

     <p className="text-sm text-gray-700">**Figure: DisplayPort setup**</p>
   </div>

2. Power on the device. Weston launches automatically during boot.

3. Verify the display.

   The following Weston flower pattern displays on both DisplayPort screens, indicating successful setup.

   <div className="flex flex-col items-center gap-2">
     <img src="https://mintcdn.com/qualcomm-prod/mGpYCfBsZaJSFIEo/Technologies/Display/media/qli-display/Weston_flower_pattern.PNG?fit=max&auto=format&n=mGpYCfBsZaJSFIEo&q=85&s=7be04aa671e4986b111a23843ab2033c" alt="Figure: Weston flower pattern" width="680" height="376" data-path="Technologies/Display/media/qli-display/Weston_flower_pattern.PNG" />
   </div>

   <Note>
     If you are experiencing a no-display screen issue on DisplayPort, see [Debug the DisplayPort](troubleshoot-debug-dp-iq9075).
   </Note>

After you have set up the DisplayPort, run the following test applications to verify the display functionality:

<CardGroup cols={2}>
  <Card title="Run Weston simple EGL" icon="play" href="run-weston-simple-egl">
    Verify composition and rendering of frames on your display.
  </Card>

  <Card title="Run DRM modetest" icon="wrench" href="run-drm-modetest">
    Verify the display driver topology and DPU paths.
  </Card>
</CardGroup>