calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Hdmi no output on pi zero w

Thu Feb 01, 2018 11:09 pm

Hi guys, this is Carlo.
When I insert my sd card with the latest version of Raspbian (downloaded 28-01-18) on my pi 3 the hdmi output is ok, but when I insert the same sd card on my pi zero w I have not hdmi output.
Why this different behavior between pi 3 and pi zero w?
I have tried to change setting in config.txt, but nothing changed.

thanks
Carlo

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B.Goode
Posts: 8987
Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 7:35 am

Maybe the cable or adapter/convertor that you are using with the RPiZero is faulty?

calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 7:39 am

The cable is the same on pi3 and pi zero w.
I'm desperate.

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B.Goode
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Joined: Mon Sep 01, 2014 4:03 pm
Location: UK

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 8:09 am

calucio24 wrote:
Fri Feb 02, 2018 7:39 am
The cable is the same on pi3 and pi zero w.
The RPi3 has a standard full-size HDMI connection.

The RPiZeroW has a Mini HDMI connection.

calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 8:15 am

Yes of course,
in my cable I can change the connector to switch between hdmi to mini hdmi.
I use this cable:
https://www.amazon.it/Chenyang-90-gradi ... i+90%C2%B0

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B.Goode
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Location: UK

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 8:21 am

Have you tested that cable with some other source of a Mini HDMI signal?

Maybe it is faulty when used in its Mini HDMI mode?

fanoush
Posts: 490
Joined: Mon Feb 27, 2012 2:37 pm

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 8:30 am

calucio24 wrote:
Thu Feb 01, 2018 11:09 pm
I have tried to change setting in config.txt, but nothing changed.
so did you already increased config_hdmi_boost ?
check this viewtopic.php?f=28&t=198653
or this viewtopic.php?f=28&t=198748#p1241355
looks like pi zero hdmi is somewhat weaker or it is because of the additional mini-HDMI adapter

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Paul Webster
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Location: London, UK
Contact: Twitter

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 10:14 am

Is your Pi0in a case?
If yes it is possible that the case is preventing the mini-HDMI connector going all of the way in.
I had that problem and resolved it by shaving some plastic from the end of the mini-HDMI connector.

calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 10:20 am

Hi Paul, no is not in a case.
I'll try to set hdmi_boost=11 and let you know.

fanoush
Posts: 490
Joined: Mon Feb 27, 2012 2:37 pm

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 2:26 pm

calucio24 wrote:
Fri Feb 02, 2018 10:20 am
I'll try to set hdmi_boost=11 and let you know.
for some reason it is actually config_hdmi_boost
unlike any other hdmi_xx parameter documented here https://www.raspberrypi.org/documentati ... t/video.md

carlodivita
Posts: 2
Joined: Sat Jun 25, 2016 10:51 am

Re: Hdmi no output on pi zero w

Fri Feb 02, 2018 11:05 pm

Hi guys,
I set config_hdmi_boost=11 but nothing changed.
I have also tried to set hdmi_force_hotplug=1 with same result.
I have not other devices where I can test the cable with mini hdmi connector.

calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Re: Hdmi no output on pi zero w

Sun Feb 18, 2018 2:50 pm

Hi guys,
I’m using an fvp hdmi cable like this on raspberry pi zero w
https://www.amazon.it/dp/B0177ECP6S/ref ... IAb2X6FG9J

But in my monitor doesn’t appear
If I change mini hdmi side adapter with hdmi and use this with my raspberry 3 all works.
I return mini hdmi side adapter becouse I thought was broken. So i bought new mini hdmi side adapter but nothing changed.

Help me!! Please

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Paul Webster
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Location: London, UK
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Re: Hdmi no output on pi zero w

Wed Feb 21, 2018 9:37 am

Have you tried the various suggestions from earlier in this thread?

calucio24
Posts: 13
Joined: Thu Feb 01, 2018 11:02 pm

Re: Hdmi no output on pi zero w

Wed Feb 21, 2018 9:47 am

Yes. I think that also this mini hdmi connector has a problem because with every different cable and connector all works good.

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