'No Connection' when setting up RPi 4

[MichelleBarnett]

I'm trying to set up my RPi 4 for the first time, and I've followed the Getting Started guide and video. I seem to be doing it correctly and in the right order, but every time I try to turn it on, my monitor just says 'No Connection' and then shuts off.

I tried plugging it into a TV screen-- nothing. I tried swapping the micro HDMI cable-- nothing. I even bought a new Raspberry Pi-- still nothing. Does anyone have any suggestions on what else to try?

[W. H. Heydt]

Make sure the microHDMI plug is fully inserted into the HDMI0 port (the one closest to the USB-C power connector).

[HawaiianPi]

Yup, as above, use HDMI-0 (micro-HDMI closest to USB-C power input).

Also make sure the correct input is selected on the monitor or TV.

Did you use the Raspberry Pi Imager to create your card? If not, give that try (it's the simplest way to install an OS).

It's known the Pi4B has problems with displays that run at 1366x768 resolution. Do you know the resolution of your TV and monitor?

[prak_s]

I have exactly the same issue with my new Pi4B. What is the resolution to the issue with 1366x768 resolution monitors?

[DougieLawson]

I have exactly the same issue with my new Pi4B. What is the resolution to the issue with 1366x768 resolution monitors?

The answer is to override the settings to ANY other resolution that your monitor can handle.

You can find those with a tvservice -m DMT command if you're able to get an SSH session to your RPi.

If not set mode 4. With

Code: Select all

hdmi_group=2
hdmi_mode=4

in /boot/config.txt as all monitors can do 640x480 no matter how dumb or smart they are.

[MichelleBarnett]

I'm trying to set up my RPi 4 for the first time, and I've followed the Getting Started guide and video. I seem to be doing it correctly and in the right order, but every time I try to turn it on, my monitor just says 'No Connection' and then shuts off.

I tried plugging it into a TV screen-- nothing. I tried swapping the micro HDMI cable-- nothing. I even bought a new Raspberry Pi-- still nothing. Does anyone have any suggestions on what else to try?

I realized I had a 1366x768 monitor so I got a new one that is 1440x900, and I still can't get it to work. Any other thoughts?

[FTrevorGowen]

I'm trying to set up my RPi 4 for the first time, and I've followed the Getting Started guide and video. I seem to be doing it correctly and in the right order, but every time I try to turn it on, my monitor just says 'No Connection' and then shuts off.

I tried plugging it into a TV screen-- nothing. I tried swapping the micro HDMI cable-- nothing. I even bought a new Raspberry Pi-- still nothing. Does anyone have any suggestions on what else to try?

I realized I had a 1366x768 monitor so I got a new one that is 1440x900, and I still can't get it to work. Any other thoughts?

What happens if you connect to your monitor and power up the P4B without a uSDHC card? (ie. do you see a bootloader diagnostic screen similar to this one: https://www.cpmspectrepi.uk/raspberry_p ... stics.html ?
(If you do then the uHDMI-to-HDMI cable's O.K.) What is the make/model of your monitor (or post a link)? Can you/have you enable/enabled SSH and a network connection? (If so, have you tried to remotely login from another m/c?)
Trev.

[sudheerk]

Hello,
I landed into same issue. Copied Noobs v3_4_0 to my SD card and connected to my samsung TV.
When try to boot for the first time, i see only blue and pink screen. Dont see any menu coming up.
I dont see any steps i missed as per the procedure. Please suggest.

Thanks,
SD