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Changing the Output Resolution for SparkBridge+

  • Updated

 

You can change the HDMI output resolution of a SparkBridge+ to match the external display form factor and recommended resolution. 

1st Option:
Use auto-negotiation to obtain an available resolution list. If the correct resolution is found, apply this method.

2nd Option:

If auto-negotiation fails, switch to a custom resolution by turning off EDID negotiation. There are two options here:

2.1 Select a resolution from the predefined custom resolution list.
2.2 If none of the preset resolutions work, the user must manually calculate the timing

parameters for the required resolution. Due to hardware constraints, this may require multiple attempts. If assistance is needed, please contact the Videri support team.

 

3rd Option:
After setting up the correct resolution, if the screen does not extend to full size, ensure HDMI is toggled ON/OFF during boot-up. if the screen get green, please following the link here.

To access the command terminal:

  1. Click on "Canvases" to see your list of Canvases.
  2. Click on the target SparkBridge+ in the list to open the Canvas drawer.
  3. Click the button in the top-right corner of the drawer to launch the command terminal.

 

1. Please use the auto EDID negotiation mode before trying custom resolution ( default mode )

 Requirements:  iCanvas 5.11.6 or higher version

To start with auto EDID negotiation mode:

Firstly, set it with this command then reboot

  • set_hdmi_res_mode:=edid

Note that the canvas will automatically reboot to use the new setting

February-13 11-40-39.png

To read back the current the EDID mode setting:

  • get_hdmi_settings

February-13 11-42-24.png

After reboot, to get the support resolution list from your HDMI display, we can use the following command

  • get_screen_res

February-13 11-43-20.png

List might be long, you can scroll down to get to the required resolution.

Now to set the HDMI display,

  • Ex: set_screen_res:=1920x1080p50.00-14

741.meko.3588.SP+.setting.guide.set_screen_res.auto.png

 

Note: If you have already scheduled content and after changing the resolution the image is incomplete, please clear the canvas and re-send the schedule. 

 

2. To start with No EDID Negotiation and use a custom resolution from a predefined list:

  1. Set the HDMI mode to “Predefined”

set_hdmi_res_mode:=predefined

      2. To retrieve a list of already known resolutions, send the get_screen_res command.

743.meko.3588.SP+.setting.guide.noedid.set.png

 

3.  Set the HDMI output to one of the available resolution, send the set_screen_res command pointing to the resolution. E.g.,

  • Ex: set_screen_res:=3648x1378p49.97-6

744.meko.3588.SP+.setting.guide.noedid.set.png

After sending the set_screen_res command, the system will reboot automatically to enable the same resolution in frame buffer.

 

On connecting an HDMI cable on a SparkBridge+, please be careful on the HDMI interface. We don’t use the “HDMI IN”. If your screen cannot reproduce higher than HD resolution, please make sure that your HDMI cable quality is satisfactory for high resolution throughput.

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