moel
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How many monitors could you drive?

Thu Mar 14, 2013 7:51 pm

Hello all, very much a newbie, so apologies! (I will do a search as well, promise!)

Anyway starter question...i'm guessing the pi can only drive one monitor via hdmi in standard form...what would be the best way of getting it to drive 9 screens (8 small 1 big)

Strange question I know, but i'm sure one of you enterprising guys will know if it's even possible...

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Jessie
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Location: C/S CO USA

Re: How many monitors could you drive?

Thu Mar 14, 2013 8:26 pm

The best way to drive 9 screens with a Pi? I guess buy 9 R Pi. They wouldn't act as one coherant machine but there would be 9 active monitors.

Spid
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Re: How many monitors could you drive?

Thu Mar 14, 2013 8:58 pm

I will always assume you are running Raspbian for desktop and Raspbmc for XMBC !

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tonyhughes
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Re: How many monitors could you drive?

Thu Mar 14, 2013 9:13 pm

What we really need to know is do you want them all display different things, or the same thing?

klricks
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Re: How many monitors could you drive?

Fri Mar 15, 2013 3:25 am

Maybe one of these?
http://www.amazon.com/8-Port-Amplified- ... litter+1x8

It's a 1x8 but any more than that and they get really expensive.

1x16:
http://www.amazon.com/HDMI-Splitter-1x1 ... itter+1x12
Unless specified otherwise my response is based on the latest and fully updated Raspbian Buster w/ Desktop OS.

moel
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Re: How many monitors could you drive?

Fri Mar 15, 2013 5:51 am

Sorry, I should have said that they all require different things on each display.

Spid
Posts: 525
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Re: How many monitors could you drive?

Fri Mar 15, 2013 6:22 am

I will always assume you are running Raspbian for desktop and Raspbmc for XMBC !

moel
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Joined: Thu Mar 14, 2013 7:46 pm

Re: How many monitors could you drive?

Fri Mar 15, 2013 6:56 am

Spid that's awesome will that definitely work?

Alex

ghans
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Location: Germany

Re: How many monitors could you drive?

Fri Mar 15, 2013 7:04 am

Nope.
The USB Bus is limited to 480 mpbs , and i don't think
9 DisplayLink devices will work while sharing the
limited bandwith.
Not to forget the insane CPU load which is going to be
created by those devices. 9 individual Pi is the way to go.


ghans
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Spid
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Re: How many monitors could you drive?

Fri Mar 15, 2013 8:50 am

moel wrote:Spid that's awesome will that definitely work?

Alex
No, No and again no you will ideally need at least an i3 and 4GB Memory minimum........ Buy 9 x Pi's
I will always assume you are running Raspbian for desktop and Raspbmc for XMBC !

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tonyhughes
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Re: How many monitors could you drive?

Fri Mar 15, 2013 9:13 am

moel wrote:Hello all, very much a newbie, so apologies! (I will do a search as well, promise!)

Anyway starter question...i'm guessing the pi can only drive one monitor via hdmi in standard form...what would be the best way of getting it to drive 9 screens (8 small 1 big)

Strange question I know, but i'm sure one of you enterprising guys will know if it's even possible...
It is not possible.

There is not enough processing power, and the only way to run more displays is to use USB which on the Pi, simply doesn't have enough bandwidth to cope with what you are asking.

unclejed613
Posts: 55
Joined: Sun Jan 15, 2012 10:49 pm

Re: How many monitors could you drive?

Wed Mar 20, 2013 3:17 am

HDMI by it's nature not "splittable". it's an encrypted data stream. you can only have one source and one sink. you can also have repeaters(such as a switch, extender or A/V receiver that acts as a repeater), but there are no monitors made with repeaters in them

that "splitter" shown above probably sets up separate session keys with each TV.

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pluggy
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Re: How many monitors could you drive?

Wed Mar 20, 2013 5:44 am

I'm with Mr Hughes, if you're wanting to run 9 displays, the last of your worries is the technicalities of plugging them in. The Pi barely has enough CPU power to drive one display convincingly (as in put useful stuff on there that is updated more than infrequently) let alone 9.
Don't judge Linux by the Pi.......
I must not tread on too many sacred cows......

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