Hi, I had no image too,
It should be open the monitor first and then the BBB.
Be sure that you plug it to an HDMI (dvi) port.
Sound basic infoz, but I have to share. Hopefuly help someone.

On Thursday, April 2, 2015 at 4:12:32 PM UTC+3, dheeraj jha wrote:
>
> Hi,
>
> We we are not able to get the HDMI output through the board, in this 
> regard we went to the ""[email protected] <javascript:>" and after 
> the back and forth communication with them they suggested for the forum:
> Below mentioned is that E-mail communication, if any one can help in this 
> regard it will be really helpful:
>
> Cnversation: 
>
> Hi 
>  
> We are not able to get the HDMI output from the Beagle bone black board on 
> the monitor which is having the resolution as 640 * 480 of HP company, only 
> an image flash for few second and then disappear after that.
> Please find in the attached screenshot name “Instance of Flash image.jpg” 
> for the same.
>  
> Following are the peripherals used by us for connecting the BeagleBone 
> Black:
>  
> 1.       Beaglebone black Rev C Board.
> 2.       VGA to Micro HDMI connector.
> 3.       5V 2.0A Micro USB Adapter.
> 4.       Monitor: HP: 640 * 480 .
> 5.       USB cable.
>  
> We are using below mentioned BeagleBone Black (eMMC flasher) image on the 
> board:
>  
>
> https://s3.amazonaws.com/angstrom/demo/beaglebone/BBB-eMMC-flasher-2013.09.04.img.xz
>  
> Please provide some solution regarding this. 
>
> SUPPORT replied: Verify the EDID information
>
> Response from our side:
>
> root@beaglebone:/sys/class/drm/card0/card0-HDMI-A-1# parse-edid edid
> parse-edid: parse-edid version 2.0.0
> parse-edid: IO error reading EDID
>  
> 2.       On further investigation I found that we need the read-edid 
> package, So then I tried to install the read-edid package using command : 
> opkg install read-edid
>  
> root@beaglebone:/ opkg install read-edid
> Unknown package
>  
> But I was not able to do so.
>  
> 3.       Also when I tried the “xrandr” command I got :
>  
> root@beaglebone:/ xrandr
> root@beaglebone:/ Can’t Open the Display
>  
> So, by no means i am able to get the EDID Information.
>  
> Can you provide some solution in this regard.
>
>  
> I am able to get the EDID information for the same monitor using the 
> Ubuntu 12.04 running on x86 board as you can see in the attached screenshot 
> “EDID information_x86 board” .
>  
> So, it seems the monitor has the EDID support.
>  
> The image we flashed on the Beagleboard also contains the Xorg.conf file 
> at the path /etc/X11 as you can find in the attached screenshot “Xorg.conf” 
> do you think by adding something to this file will help.
>  
> Please guide us in this direction.
>
>  
> Thanks,
> Dheeraj
>

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