On Thu, Aug 4, 2016 at 2:12 PM, [email protected] <[email protected]> wrote:
> 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.

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/

-- 
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