Force the capture card to use a specific EDID

Extended display identification data (EDID) is data provided by a video display device (usually a monitor) to describe its capabilities to a video source (usually a graphics or video output card in a PC or another device). The video source uses the EDID to determine the capabilities of the monitor in regards to the resolutions, color depth and other settings that the monitor can support.

EDID is mostly ignored by VGA sources, but it is crucial for DVI sources.

Like monitors, each video capture card in theStandalone VGA Grid contains an EDID. When you connect a VGA or DVI video source (such as a laptop or video camera), this source sees the Standalone VGA Grid's HD Encoder's capture card as a monitor and uses its EDID to negotiate which video signal to send.

Generally the capture card's DVI input correctly emulates a monitor that supports your video source. However sometimes, particularly if your source uses a custom set of display properties, you need to help Standalone VGA Grid's HD Encoder by uploading a custom EDID to force the capture card to report that it emulates a resolution, color depth, etc needed by your laptop, camera or other video source.

Upload a new EDID

In most circumstances the factory installed default EDID, is sufficient. However, there may be some cases where a video source uses resolutions that you do not want to use. In that case you can choose an EDID that forces the Standalone VGA Grid's capture card to use a specific set of attributes.

The uploaded EDID is permanently installed on your system and this capture card (a "Source" in the Admin panel) will always share the uploaded EDID with the connected video input source.

EDID changes are permanent until you replace them with another EDID or specifically choose to restore the facotry EDID for a given source. Not even a system-level factory reset removes the configured EDIDs.

1. To download a new EDID file, go to the Epiphan support web page. The support page opens.
2. Select the support page for Standalone VGA Grid.
3. Scroll to the EDID section.
4. Click on an EDID from the list. The file is saved to your downloads folder on your hard drive.
5. Connect to the Admin panel using your preferred connection mechanism. See Connect to the Admin panel.
6. Login as admin.
7. From the Admin panel, Scroll to the Sources section.
8. Click the name of the VGA or HDMI DVI capture card (source) for which you want to upload an EDID; the Source Configuration page opens.
9. Scroll to the EDID upload section.
   

10. Click Choose File; a file browser opens.
11. Browse to the location where the custom EDID file was saved and select the file.
12. Click open; the EDID filename is displayed on the screen.

13. Click upload, the EDID upload begins; the screen shows a progress inidicator.

14. When the upload is complete the page changes to reflect success or failure.

Restore factory default EDID

When you have finished with a custom EDID, you can restore the capture card (in the Sources list) to the default EDID. Currently there is no way to tell if your capture card is using a custom EDID. If you are unsure, restoring to factory default is the best approach.

To restore the default EDID:.

1. Login to the Admin panel as admin. See Connect to the Admin panel.

3. From the Admin panel, scroll to the Sources section.
4. Click the capture card (source) for which you wish to restore the EDID; the source configuration page opens.
5. Scroll to the EDID section.
6. Click the restore button.

7. The screen updates with a status indicator.

8. When the EDID restoration is complete, the page updates to reflect the action is completed.