HDMI Signal strength
#1
Hello all,

Recently my office picked up several Rock64 boards to be used for a network monitoring wall project. We have two network walls, the first consists of 3 50" televisions and the second consists of 4 55" televisions. I noticed that when using very long HDMI cables, in our case 50 ft, the hdmi signal is too weak and the TV displays no signal.

Is there a config_hdmi_boost value that I can modify like on the Raspberry Pi? 

I know that the best case scenario is to mount the board to the back of the television and use a short cable. Our network wall already had four 50 ft and three 25 ft HDMI cables run in the ceiling of our office.

Thanks,
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#2
Possibly in extlinux. I'll check and get back to you.
You can find me on IRC, Discord and Twitter


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#3
Thank you. I forgot to mention we are using the following:

Debian 9.5 Stretch with MATE Desktop 1.16.2
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#4
(09-18-2018, 09:55 AM)bennettjp Wrote: Thank you. I forgot to mention we are using the following:

Debian 9.5 Stretch with MATE Desktop 1.16.2

Which image exactly? Could you try 0.7.9 LXDE Ubuntu (Bionic) just for the sake of testing? thanks.
I haven't yet determined how to 'boost' HDMI strength in extlinux
You can find me on IRC, Discord and Twitter


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