What should the block number be after the EDID value?
The data bytes should be formatted as 128 hexadecimal integers that contain the binary EDID data. The “0x1” value after the block number is a flag indicating that this registry value contains binary data (FLG_ADDREG_BINVALUETYPE).
What does the EDID mean on a monitor?
The EDID will also include the detailed timing the monitor expects to receive the video signal at. Not all monitors use the default timings recommended by the VESA standard. What is the preferred mode? There is one mode in the EDID that the monitor will call the preferred mode.
What’s the difference between DDC and EDID data?
The original DDC protocol defined 128 bytes to be sent from the display to the video source, with data formatting defined by the EDID specification. As display types and capabilities increased, 128 bytes became insufficient, and both EDID and DDC were extended so that multiple 128-byte data blocks could be exchanged.
What happens if the image does not match the EDID?
Figure 2: The source resolution does not match that of the display, resulting in a fuzzy, distorted image. An image is shown, but the source resolution does not match that of the display. A PC cannot read the EDID information, so it defaults to a standard resolution, such as 640×480.
How are edids formatted in monitor INF file?
Guidelines for achieving this can be found in Monitor INF File Sections. EDID data is formatted as one or more 128-byte blocks: EDID version 1.0 through 1.2 consists of a single block of data, per the VESA specification.
How is the EDID information conveyed in a display?
The base EDID information of a display is conveyed within a 128-byte data structure that contains pertinent manufacturer and operation-related data. See Table 2. The current EDID version defines the structure as follows:
Where do I find my monitor EDID information?
This can be done through Windows Update or by shipping a CD with the monitor. The monitor class installer extracts the updated EDID information from the INF and stores the information as values under this registry key: