PINE64

Full Version: HDMI Signal strength
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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,
Possibly in extlinux. I'll check and get back to you.
Thank you. I forgot to mention we are using the following:

Debian 9.5 Stretch with MATE Desktop 1.16.2
(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