MikiBroki
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No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 12, 2017 11:44 am

Hello all,

A couple of weeks ago I tried to use my Pi3 on a DVI monitor with a HDMI-DVI cable, but It didn't get video signal.

Then I edited 'config.txt' by using a HDMI TV, trying with 'hdmi_force_hotplug', 'hdmi_safe', 'hdmi_group', etc. with no success.

After that I used 'config_hdmi_boost' to a higher value of '7' with no success... but after that my Pi3 didn't get video signal on any TV or PC monitor, even with HDMI.

I tried with 2 TV's, 2 monitors, 4 HDMI cables and 2 power sources and 2 MicroSD's that I used always without problem.

I tried formatting the sd cards and installing berryboot, noobs with Raspbian and a Raspbian without NOOBS. I see that the green led is blinking as shows in the next videos:

Raspbian (without noobs):

https://youtu.be/iwuq__MMX3A

Berryboot:

https://youtu.be/DPiIa8ssP4c

I can't access via SSH or VNC (I cannot configure wifi card, and with ethernet I dont' see the Pi connected with Fing and other scanning software), and cannot access any 'config.txt' on Rasbpian (the light of the router's port where I connect the Pi remains off).

I tried to connect through an HDMI adapter and its led is on when I connect the HDMI cable from the PI.

I can edit 'config.txt' on Berry (that file is accesible on the card's filesystem), leaving it empty... but nothing... no video signal anyway.

I tried with the solutions commented on the HDMI pinned post too and the Raspbian Raspbian unattended netinstaller.

Any way of recover the Pi, please ?


MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Wed Sep 13, 2017 12:22 am

Thanks... but as I said I tried with the options in that sticky post.

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mahjongg
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Re: No way: No Video Input... is bricked my Pi 3 ??

Wed Sep 13, 2017 12:32 am

do the LED's on the ethernet connector light up (with a valid connection to another ethernet device)?

Have you tried whether composite video output works?

P.S. never-mind, I see in your video that the PI has booted, otherwise the Ethernet LED's wouldn't have become active.
What I don't understand is why you can't SSH into the PI, that shouldn't be a problem (if SHH access is enabled) . it has nothing to do with video generation.

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Wed Sep 13, 2017 9:27 am

No composite video output. I used the video cable type indicated in the second post of: https://www.element14.com/community/thr ... hread=true and with next parameters (in the 'config.txt' of berryboot):

Code: Select all

# For composite PAL
sdtv_mode=2

hdmi_ignore_hotplug=1    
But I'm using a SCART adapter, but I will try in other.

The two lights of the ethernet connector blink at the same time, but the led on the router's port reamains off when Pi3 is attached (but turns on when I connect my laptop).

I tried to open my wifi, with no authentication... but I don't see any IP assigned to the Pi3.

I used Etcher to 'burn' the new version of raspbian (but I don't know if ssh or vnc are active at startup). I will try with Jessie version.

Thing is: why no hdmi signal on any monitor or TV I used before with same cables, power and supply ? maybe 'config_hdmi_boost' at high level broken something ?

Other question I have: could the problem be because I have conected a fan on the two correct GPIO pins, but when Pi was on ?

Thanks a lot.

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HawaiianPi
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Re: No way: No Video Input... is bricked my Pi 3 ??

Wed Sep 13, 2017 11:12 am

Download one of the Raspbian images (desktop or lite) and use Etcher to write it to an SD card. There is no need to format the card prior to using Etcher, and you don't have to extract the image (Etcher can write the image directly from the archive).

If you have trouble writing the image, verify the download with the published SHA-256 checksum from the download page. There is a nice little Windows shell extension called HashCheck that adds a checksums tab to file properties which you can use to check the downloaded file.

When Etcher has successfully written and verified the card it will safely eject it. Unplug the card or card reader and plug it back in so your computer will see the small FAT32 formatted boot partition.

To enable SSH create an empty file named "ssh" or "ssh.txt" on the small FAT32 boot partition of the SD card.

To connect to a wireless router create another file called "wpa_supplicant.conf" which contains the following info.

Code: Select all

ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev
update_config=1
country=US

network={
	ssid="Your network SSID"
	psk="Your WPA/WPA2 security key"
	key_mgmt=WPA-PSK
}
Edit the country code, SSID and the WPA/WPA2 key with the info you need to connect to your network.

If you are using an ethernet cable to connect to your router you can skip that second file.

Safely eject the card from your computer and use it to boot the Raspberry Pi. If you still get no video you should at least be able to connect via SSH. To find the IP address of the Pi login to your router and look at the list of connected clients.
My password is the last 8 digits of Pi.

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Wed Sep 13, 2017 10:11 pm

Thanks a lot HawiianPi, now I can use SSH and VNC !

Simply by creating a ssh.txt file in the SD root directory I can access via SSH and activate the VNC server on Raspbian Stretch using ethernet.

But I created the wpa_supplicant.conf file (in the same root directory of the SD, isn't it?) with no success. I can't connect via wifi.

However the wifi adapter seems to work as I can see wifi networks in Raspbian... but when I disconnect the ethernet cable I don't get wifi.

Now I will try with Raspbian Jessie.

On the other hand, I have tried to solve the problem with HDMI/Composite by editing '/boot/config.txt' but the problem persists. No video at all.

drgeoff
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 7:33 am

There are 3 types of SCART adaptors.

1. For putting signals into a SCART socket.

2. For getting signals out from a SCART socket.

3. With a switch to choose either IN or OUT mode.

Clearly if you have the second type or the third type with switch in the wrong position, it won't work.

(The first and second type look very similar and often have no marking as to which way they are wired internally.)

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 8:58 am

Thanks, I have the third type (IN position)

Image

I tried with red and white cables on the yello video conector, with no success.

Discommented every hdmi_* option and leaved only:

Code: Select all

# PAL
sdtv_mode=2

hdmi_ignore_hotplug=1

Ernst
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Location: Germany

Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 12:21 pm

MikiBroki wrote:
Thu Sep 14, 2017 8:58 am
Thanks, I have the third type (IN position)

Image

I tried with red and white cables on the yello video conector, with no success.

Discommented every hdmi_* option and leaved only:

Code: Select all

# PAL
sdtv_mode=2

hdmi_ignore_hotplug=1
Taking a wild guess, this might be your problem ! If you have a red and a white cable then this is a stereo sound cable and not video.
What you need is a cable with a yellow cable (or black cable with yellow plug).
The yellow plug must be plugged into the yellow socket on the scart adapter.

When you look at the plugs (https://www.adafruit.com/product/2881) you should see a colored band on the plug: white, red, yellow.
My first computer was an ICT1500

drgeoff
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 12:46 pm

MikiBroki wrote:
Thu Sep 14, 2017 8:58 am
Thanks, I have the third type (IN position)

Image

I tried with red and white cables on the yello video conector, with no success.

Discommented every hdmi_* option and leaved only:

Code: Select all

# PAL
sdtv_mode=2

hdmi_ignore_hotplug=1
The table in the second post of the link you gave above has 5 lines. The first 3 will never work properly no matter how you connect phono plugs to the SCART adaptor. The 4th one needs the red phone plug to the yellow on the adaptor. The 5th one needs yellow to yellow.

White plug to yellow socket will never give video with any cable. Any cable with a 3.5mm plug not having 4 contacts will not get video from a RPi.

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 12:50 pm

Thanks but... are you sure ? I have a red+white+yellow one like this:

Image

I have used this cable+adapter and used with other (no hdmi) devices, and I got audio and video correctly.

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rpdom
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 1:16 pm

The problem with those cables is that there are different types with different wiring.

It all comes down to which wires are connected to each of the connections on the four pole plug. Some work with the Pi and some don't.

drgeoff
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 2:35 pm

MikiBroki wrote:
Thu Sep 14, 2017 12:50 pm
Thanks but... are you sure ? I have a red+white+yellow one like this:

Image

I have used this cable+adapter and used with other (no hdmi) devices, and I got audio and video correctly.
Thee are 24 ways to put 4 wires to 4 contacts. There is no single standardised way to put stereo audio plus composite video on to a TRRS plug. At least 3 of the 24 possible wirings are in common use.

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Thu Sep 14, 2017 3:00 pm

OK thank you very much, I will buy the one you advices when I found it.

At least with your help now I can SSH and VNC, but the HDMI problem persists.

Any other idea to solve the HDMI problem, please ?

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Sun Sep 17, 2017 11:52 pm

Now I tried to run tvservice -M, nothing is showed when I plug/unplug any of the four HDMI cables I have.

However, the next commands runs well:

tvservice -n

Code: Select all

device_name=PHL-PHL_247E6

tvservice -s

Code: Select all

state 0x12000a [HDMI CEA (16) RGB lim 16:9], 1920x1080 @ 60.00Hz, progressive

tvservice -m DMT

Code: Select all

Group DMT has 14 modes:
           mode 4: 640x480 @ 60Hz 4:3, clock:25MHz progressive 
           mode 5: 640x480 @ 72Hz 4:3, clock:31MHz progressive 
           mode 6: 640x480 @ 75Hz 4:3, clock:31MHz progressive 
           mode 9: 800x600 @ 60Hz 4:3, clock:40MHz progressive 
           mode 11: 800x600 @ 75Hz 4:3, clock:49MHz progressive 
           mode 16: 1024x768 @ 60Hz 4:3, clock:65MHz progressive 
           mode 18: 1024x768 @ 75Hz 4:3, clock:78MHz progressive 
           mode 35: 1280x1024 @ 60Hz 5:4, clock:108MHz progressive 
           mode 36: 1280x1024 @ 75Hz 5:4, clock:135MHz progressive 
           mode 47: 1440x900 @ 60Hz 16:10, clock:106MHz progressive 
           mode 48: 1440x900 @ 75Hz 16:10, clock:136MHz progressive 
           mode 58: 1680x1050 @ 60Hz 16:10, clock:146MHz progressive 
           mode 82: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive 
           mode 85: 1280x720 @ 60Hz 16:9, clock:74MHz progressive 

tvservice -m CEA

Code: Select all

Group CEA has 15 modes:
           mode 1: 640x480 @ 60Hz 4:3, clock:25MHz progressive 
           mode 2: 720x480 @ 60Hz 4:3, clock:27MHz progressive 
           mode 3: 720x480 @ 60Hz 16:9, clock:27MHz progressive 
           mode 4: 1280x720 @ 60Hz 16:9, clock:74MHz progressive 
           mode 5: 1920x1080 @ 60Hz 16:9, clock:74MHz interlaced 
           mode 6: 720x480 @ 60Hz 4:3, clock:27MHz x2 interlaced 
           mode 7: 720x480 @ 60Hz 16:9, clock:27MHz x2 interlaced 
  (prefer) mode 16: 1920x1080 @ 60Hz 16:9, clock:148MHz progressive 
           mode 17: 720x576 @ 50Hz 4:3, clock:27MHz progressive 
           mode 18: 720x576 @ 50Hz 16:9, clock:27MHz progressive 
           mode 19: 1280x720 @ 50Hz 16:9, clock:74MHz progressive 
           mode 20: 1920x1080 @ 50Hz 16:9, clock:74MHz interlaced 
           mode 21: 720x576 @ 50Hz 4:3, clock:27MHz x2 interlaced 
           mode 22: 720x576 @ 50Hz 16:9, clock:27MHz x2 interlaced 
           mode 31: 1920x1080 @ 50Hz 16:9, clock:148MHz progressive 

As I said, tvservice -M shows nothing when I plug/unplug HDMI cable... BUT when I plug a cable and go to Preferences->Raspberry Pi Configuration and select 'Set Resolution'... there are more resolutions in the list, and the option 'Default - Preferred monitor settings'.

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DougieLawson
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Re: No way: No Video Input... is bricked my Pi 3 ??

Mon Sep 18, 2017 7:48 am

Try forcing your display to hdmi_group=2 with hdmi_mode=16 or hdmi_mode=18 by adding two lines to /boot/config.txt. Just about every TV/monitor made in the last ten years or more can run 1024x768.

If that doesn't work, then swap out your HDMI cable or HDMI/VGA adapter for one that's known good.
https://shop.pimoroni.com/products/rasp ... -converter

If you think your RPi3 may not be booting, get a factory fresh (8GB or larger) SDCard, a copy of https://etcher.io and a download of plain Raspbian Stretch 2017-09-07. Use etcher to write Raspbian to your new SDCard.
Microprocessor, Raspberry Pi & Arduino Hacker
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Since 2012: 1B*5, 2B*2, B+, A+, Zero*2, 3B*3

Please post ALL technical questions on the forum. Do not send private messages.

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Mon Sep 18, 2017 9:59 am

I can access the pi via SSH or VNC, and tried that config options with no result. But I will buy that adapter and try when arrived.

Thanks!

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Re: No way: No Video Input... is bricked my Pi 3 ??

Mon Sep 18, 2017 4:22 pm

MikiBroki wrote:
Thu Sep 14, 2017 12:50 pm
Thanks but... are you sure ? I have a red+white+yellow one like this:

Image

I have used this cable+adapter and used with other (no hdmi) devices, and I got audio and video correctly.
how is your cable wired? where is ground connected on the 3mm jack connector?
see picture of how the connector has to be connected correctly...
viewtopic.php?f=91&t=83446
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RPi Model B (rev1, 256MB) & B (rev2, 512MB) & B+, RPi2B (1GB), 64GB microSDXC1 class 10, HDMI 1920x1080, keyboard-mouse-combo (wireless), PiCamera, ethernet-cable, 5V/1.2A power supply, Wifi dongle (rt5370)

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mahjongg
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Re: No way: No Video Input... is bricked my Pi 3 ??

Mon Sep 18, 2017 5:52 pm

Or read this, which gives exactly the same information, but isn't buried in a long post. https://www.raspberrypi.org/forums/vie ... 04#p714304

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 19, 2017 5:38 pm

Thanks mahjongg, it's a four parts 3,5mm but I don't see any printed info on it.

I thinks it's standard camcorder, but I tried connecting the red wire on the yellow connector of SCART adapter with no success.

I tried with a RCA-DSUB cable, but nothing happens.

Image

It 's a waste of time, I think I will buy another Pi in a months. But I will make some attemps more with a HDMI-VGA adapter I bought.

At least I can use it with SSH/VNC now.

Thanks everybody for your help !

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mahjongg
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Re: No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 19, 2017 5:44 pm

I have updated the common pitfall article with some information from the buyers guide, on where you can buy a guaranteed compatible cable either in the US or in Europe.
The RCA to DSUB (actually a VGA-OUT) to RCA adapter is such a non standard item that sometimes come with video cards, so that you can connect your video card to a composite monitor, and in that case the video card is abusing some VGA pins to get extra output connectors on the cheap. No way you can use these with any PI. Also you can measure a cable you suspect to be compatible through with a multimeter's resistor or beep tester.

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Re: No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 19, 2017 6:17 pm

MikiBroki wrote:
Tue Sep 19, 2017 5:38 pm
Thanks mahjongg, it's a four parts 3,5mm but I don't see any printed info on it.

I thinks it's standard camcorder, but I tried connecting the red wire on the yellow connector of SCART adapter with no success.
don't you have an ohm meter (or multi meter) to measure the pins of the jack connector? or something else to measure where the ground connector is
(battery + resistor + led = simple tester... PS.: do not test the adapter cable, while it is connected in this way)...
then you know what kind of adapter you have and why it is not working
or then you know, how you can modify the adapter to get a working one.

senseless buying random stuff is waste of time and money.
{ I only give negative feedback }
RPi Model B (rev1, 256MB) & B (rev2, 512MB) & B+, RPi2B (1GB), 64GB microSDXC1 class 10, HDMI 1920x1080, keyboard-mouse-combo (wireless), PiCamera, ethernet-cable, 5V/1.2A power supply, Wifi dongle (rt5370)

MikiBroki
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Re: No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 19, 2017 8:04 pm

No I haven't, and I don't know how to use it :(

You're right, I found a cheap (7€) VGA output that is connected to the GPIO, but it's not a good idea to spend money for this. It's best to save money to buy another Pi.

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Re: No way: No Video Input... is bricked my Pi 3 ??

Tue Sep 19, 2017 8:26 pm

by watching your video again, i realized, that the ehternet leds on the connector are blinking very strange.
on my RPi one LED is permanently on and the green one shows traffic.
is the yellow one showing the speed 100Mb/10Mb? but even when you have a 10 Mbit/s network running, the yellow LED should be staticly on or off, as soon the ehternet connection is established.
(or am i wrong with the meaning of the yellow LED on the ethernet connector?)

maybe you shorted some pins/traces of the RPi PCB by accident somehow and that is the real reason why your Rpi is not working as expected
or electro static discharging was the reason...
and not the config.txt boost settings you made.

so when you buy a new RPi, you may also should buy a case/housing for it, to prevent shortcuts by accident.
{ I only give negative feedback }
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