getting two monitors to display in sync

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I have monitors set up on both sides of an entrance into a church and while content syncing is inferred from the documentation that I have read thus far; the two monitors appear to be off by one second and increases the longer the presentation displays. I am using chromeboxes.... anyone have a suggestion to get these in sync?
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Miker

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Posted 3 years ago

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Blake Freeman, Official Rep

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Hi Miker,

These two displays are running on separate media players, is that correct?
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Miker

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yes, two chromeboxes, one on each monitor
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Miker

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I understand that one Chromebox with an HDMI splitter will resolve the problem.
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FAC Signage

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Hi Miker,

Same situation here - church, two monitors on either side of entrance, separate media players.  A couple of things you can try - make sure time sync is configured - we're using Ubuntu so ntpd needs to be configured/enabled/started at boot.   During the day though, even with time sync, they tend to drift ever so slightly despite the time being in sync but it does help compared to not using time sync.  I also put in a daily reboot cron job to start things fresh at the beginning of each day.

You could of course drive the screens from a single player using an HDMI splitter, however, you lose the ability to schedule separate content, which is something we needed.  For example, if we have an event in the lobby with tables set up under each screen, we can put separate presentations up depending on what is going on at each table.