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--- hardware:vga_edid_injector [2016/08/26 11:21] – created andi
+++ hardware:vga_edid_injector [2018/09/08 12:07] (current) – [Replaying snapshoted EDID information] andi
@@ Line 1: / Line 1: @@
-(copy from https://web.archive.org/web/20140708233324/https://events.ccc.de/congress/2013/wiki/Projects:VGA_EDID_Injector )
+= VGA EDID Injector
+{{:hardware:vga_edid_injector_v0.1_annotated_710px.jpg?500|}}
-* Description	Captures EDID information from a display and presents it to a computer. Useful in situations where the DDC lines are not connected (like the CCH).
+Captures EDID information from a display and presents it to a computer. Useful in situations where the DDC lines are not connected (like the CCH).
 * website	https://github.com/datenwolf/vgaedidinjector
-* Persons working on	Datenwolf
+* Persons working on:	Datenwolf
@@ Line 16: / Line 16: @@
 The VGA EDID Injector has 3 connectors (see image):
-D-Sub 15 H (VGA) female, left side of the board – connect to display device
+* D-Sub 15 H (VGA) female, left side of the board – connect to display device
-D-Sub 15 H (VGA) male, right side of the board – connect to computer
+* D-Sub 15 H (VGA) male, right side of the board – connect to computer
-Micro-USB, lower side of the board – for providing auxiliary power (+5V); upcoming firmware revisions will provide a command line interface
+* Micro-USB, lower side of the board – for providing auxiliary power (+5V); upcoming firmware revisions will provide a command line interface
-{{:hardware:vga_edid_injector_v0.1_annotated_710px.jpg?500|}}
@@ Line 27: / Line 25: @@
 === Snapshoting Display EDID information
-Connect the display to the left side, female VGA connector.
+To snapshot the EDID connection you have to insert the injector in reverse direction. This typically requires you to use the VGA gender changer (orange mesh bag) and the VGA cable (blue mesh bag).
-Plug the right side, male VGA connector into a computer
+* Connect the display to the left side, female VGA connector.
+* Plug the right side, male VGA connector into a computer
 Using the display control tools refresh/identify connected displays. Repeat this until the attached display is recognized.
 The VGA EDID Injector can now be spliced into the computer side of a video signal only (i.e. no DDC signals) connection.
 === Replaying snapshoted EDID information
-Simply insert the VGA EDID Injector into the video signal connection close to the computer.
+Insert the VGA EDID Injector into the video signal connection close to the computer, as pictured above.
-Important Notice: There must be no DDC signals present on the display side of the connection. Otherwise the VGA EDID Injector will try to attempt to snapshot the information found there and, if successful, will overwrite the previously snapshoted EDID information.
+**Important Notice:** There must be no DDC signals present on the display side of the connection. Otherwise the VGA EDID Injector will try to attempt to snapshot the information found there and, if successful, will overwrite the previously snapshoted EDID information.
 In that case it is recommended to prepare a special VGA cable in which the signal carried over the pins 12 and 15 is severed (simply removing the pins from one of the connectors with some side cutters and/or pliers will do the trick).
@@ Line 45: / Line 48: @@
 Hence should the VGA EDID Injector seem to be nonoperational it is suggested to provide auxiliary power through the Micro-USB connector.
+(copy from https://web.archive.org/web/20140708233324/https://events.ccc.de/congress/2013/wiki/Projects:VGA_EDID_Injector )