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HDMI Hotplug Does not always work

Questions and discussions related to Inforce 6601™ development kit

by kim760407 » Mon Jan 07, 2019 7:35 am

Hi. I've noticed on the 6601 development kit that sometimes the HDMI display does not come up when I power up the board with HDMI cable connected. Can someone please investigate?
Thanks,
Kim
kim760407
 
Posts: 29
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by ashwin » Wed Jan 09, 2019 12:53 am

Hi Kim,

I have note experienced such issues in the past.

Perhaps its an issue with the HDMI cable. Does this occur in only one SOM or do you experience it on multiple devices?

Which release are you currently on?

Cheers,
Ashwin
ashwin
 
Posts: 60
Joined: Wed Jul 01, 2015 10:07 pm

by kim760407 » Wed Jan 16, 2019 10:55 am

Hi Ashwin,

I upgraded to the newer Inforce kernel 1.1 and then the hdmi hotplug does seem to work. Do you know which change caused this (from kernel 1.0->1.1)? Another thing we noticed was that hdmi hotplug does not work if you have the hdmi disconnected, then power up the board, then plug in the hdmi cable. We do not see the display in this case.
Thanks,
Kim
kim760407
 
Posts: 29
Joined: Thu Jan 04, 2018 7:51 am

by ashwin » Tue Jan 22, 2019 2:44 am

Hi Kim,

The same behaviour is observed on the 1.0 release also. Please check again. This is mentioned in the release notes as well.

Best Regards,
Ashwin
ashwin
 
Posts: 60
Joined: Wed Jul 01, 2015 10:07 pm


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