This is a test to see if the monitor is trying to power the board over HDMI via the EDID path. If you see no issues you can plug in the cable before power up. No issue.
Gerald On Wed, Oct 9, 2013 at 10:38 AM, RonD <[email protected]> wrote: > I've ordered the BeagleBone Black and am looking forward to getting it in > on Friday. I've been drinking from the firehose of the manual and > schematics in the meantime. > > Regarding the connection of the HDMI interface during power-on in > "stand-alone" configuration; there is a big red note in section 3.4.2 > Step #1 of the System Reference Manual. It says, "*NOTE: Do not plug in > the cable to the board until after the board is powered up*." Then in > steps #5-7, I do the following: > > #5: Connect 5V power > #6: Connect HDMI device > #7: Wait for boot to complete > > Questions: > > (a) Do I need to plan to physically disconnect HDMI device every time I > power the BeagleBone Black OFF and the reconnect after each time I power ON > again using 5V jack power? > > (b) Does the answer to (a) also apply when I use the power button instead > of the 5V DC power input? > > (c) Why is this highlighted in red? What is the possible negative > consequence if I fail to do this? It seems like the HDMI interface on the > BeagleBone Black (schematic page 10) is all outputs. So I'm guessing maybe > the HDMI device just gets confused... or is there an issue of possible > damage to the BeagleBone or to the HDMI device? > > -- > For more options, visit http://beagleboard.org/discuss > --- > You received this message because you are subscribed to the Google Groups > "BeagleBoard" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
