[time-nuts] Re: TimeHat

Lux, Jim jim at luxfamily.com
Mon Jul 5 14:16:55 UTC 2021


On 7/5/21 4:04 AM, John Miller via time-nuts wrote:
> Robert,
> If an HDMI display is connected when the board is booted, video should be displayed. If no display is connected when the system is booted, the HDMI port is not activated, and you cannot attach a monitor to it after the fact.
>
> If this is something you and others would like to do, I can work out a method to reconfigure it such that video is output all the time. Just keep in mind this will take consume some system resources and add some CPU overhead.
>
> Regards,
> John

I think there's some way to tell it "use HDMI even if not connected" - I 
have a headless Pi4 that I use VNC to.

It's one of those startup configuration things and you set it to a 
specific display, as opposed to auto.



>> On Jul 5, 2021, at 12:23 AM, Robert DiRosario <ka3zyx at comcast.net> wrote:
>>
>> On the Raspberry Pi TimeHat is there output to the HDMI connector, or is it configured to just use a serial console?
>> I'm using the preconfigured SDHC card, so the software should be fine.  If I swap out the SDHC card with a different one the systems boots fine, so the hardware works.
>>
>> With the card with the software there is never any output to the HDMI connector.
>>
>> Based on the LED on the GPS module it's locking up on the GPS signals just fine.  After the initial lockup, it locks up again in only a few seconds after a power cycle.
>>
>> Robert
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