tobrien81
Posts: 17
Joined: Thu Aug 30, 2012 9:57 am

HDMI Splitter

Tue Aug 13, 2013 9:14 am

I have 2 screens that are running with my Raspberry Pi.

I purchased a Passive HDMI splitter. 1 Male --> 2 Female ports
http://www.ebay.com.au/itm/330960756472 ... 1497.l2649

However not surprisingly it does not work to split the HDMI feed. Has anyone got this working or know of a viable solution that does not require extra power? I have power constraints with the battery I am using.

Cheers
Tom

colli6485
Posts: 2
Joined: Fri Mar 04, 2016 7:24 pm

Re: HDMI Splitter

Wed Mar 16, 2016 8:22 pm

Did you get this to work with a passive splitter?

emptybee
Posts: 23
Joined: Wed Jun 20, 2012 12:56 pm

Re: HDMI Splitter

Fri May 20, 2016 2:09 pm

I would also be very interested if anyone has got this working. I tried boosting the output using config_hdmi_boost=4 but with no luck. It boosts up to 7 but I didn't know that at the time. My pi is now tucked neatly in a flight case and getting it out is a huge faff. Can someone else with this problem try doing adding the following to config.txt:

Code: Select all

hdmi_force_hotplug=1
config_hdmi_boost=7

6by9
Raspberry Pi Engineer & Forum Moderator
Raspberry Pi Engineer & Forum Moderator
Posts: 7525
Joined: Wed Dec 04, 2013 11:27 am
Location: ZZ9 Plural Z Alpha, aka just outside Cambridge.

Re: HDMI Splitter

Mon May 23, 2016 9:28 am

Passive splitters are almost bound to fail.
Which device does it read the EDID from? How would it negotiate audio or HDCP (although the Pi doesn't impose HDCP).

Yes active ones require a small amount of power, but they're almost the same price as passive. http://www.ebay.co.uk/itm/2-Output-1-In ... 0781902431 works for me, although I'm using it slightly differently to the OPs use case.
Software Engineer at Raspberry Pi Trading. Views expressed are still personal views.
I'm not interested in doing contracts for bespoke functionality - please don't ask.

PiGraham
Posts: 3671
Joined: Fri Jun 07, 2013 12:37 pm
Location: Waterlooville

Re: HDMI Splitter

Mon May 23, 2016 9:45 am

The listing for that passive spitter said this:
Please note:
◦1. Use the positive marking line(19 +1), you can connect two monitors at the same time, but cannot show simultaneously.Only can be used one open, one close interchangeably.
◦2. Use the non-marking line(13 +1), you can insert only one HDMI cable in instead of two at the same time. Otherwise ,both will display abnormally.
Not quite sure what that means, but it doesn't sound like it will drive two displays at the same time.

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