Using Debian Image 2016-05013 Slots does not show HDMI nor EMMC capes

[sau...@nccn.net]

I start a newly downloaded Debian and the HDMI is running. I checked the uEnv.txt file and there is no line to tell it to load the dts file for the HDMI yet the HDMI is operating since I can see the desktop on the HDMI monitor.

 I cat slots and get,

debian@beaglebone:/sys/devices/platform/bone_capemgr$ cat slots
 0: PF----  -1
 1: PF----  -1
 2: PF----  -1
 3: PF----  -1

but there is no indication of HDMI loaded.

I can turn off the HDMI by modifying the uEnv.txt file,

##BeagleBone Black: HDMI (Audio/Video) disabled:
dtb=am335x-boneblack-emmc-overlay.dtb

and sure enough the HDMI display is blank.

 I have two questions,
1) Why does the HDMI not show up in slots,
2) How does the HDMI get loaded if it is not enabled in the uEnv.txt file.
Obviously I am missing something but can't find anything online to help me.
Any help would be appreciated.

[Robert Nelson]

Starting with v4.1.x and then up...

I didn't bother separating out the eMMC/hdmi, as the mmc layer was
broken when loaded as an overlay in v4.1.x

So the defaults mirror what mainline does, eMMC/hdmi are enabled by default.

Regards,

--
Robert Nelson
https://rcn-ee.com/