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webscreens / screen-enumeration

Screen enumeration API explainer
Apache License 2.0
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Unsure how EDID relates to Screen.id #15

Closed markafoltz closed 4 years ago

markafoltz commented 4 years ago

EDID is not just an ID, it's a complete structure defined by VESA that includes a lot of metadata about the display, including manufacturer, serial number, colorimetry, power states, etc.

In fact, part of the point of the screen enumeration API (as far as I can tell) is to have the user agent parse this data and return a useful subset to the Web application.

Exposing the raw EDID to the Web is going to raise some issues as a display serial number is effectively a GUID for the user.

For the use cases you've proposed, would a simple counter suffice, i.e. primary display is given an ID of "Screen-0," then "Screen-1", "Screen-2", ...?

michaelwasserman commented 4 years ago

Thanks for this feedback! I've removed all mentions of EDID from the explainer, exposing that raw information is not in any current or future plans. Using a name or basic id, like "Screen 1" is in line with our current thinking.