Problem with RealVnc on Raspberry pi

[mcgarrydware]

I have setup a raspberry pi with a Hat to receive AIS signals and also have connected a GPS receiver via USB. All that works fine and I can connect to it with my Android tablet using Navionics app. I can also SSH into it from my raspberry 400 that I use as the main computer on the boat. RealVnc used to work fine until I decided that I didn't like the resolution it was set at. As soon as I tried to change it I messed it up. Now all I get is the top left hand corner of what should be the desktop of my raspberry pi. I have tried endlessly to change it back but to no avail. Any help would be much appreciated.

Mick

[Boatingbaileys]

Can you still see the full-sized desktop via a monitor is it not setup that way?

[mcgarrydware]

Can you still see the full-sized desktop via a monitor is it not setup that way?

It's not setup with a monitor. The raspberry pi is kinda buried at the back of a locker with all the cables fed in to it. I suppose I could pull it out
and attach it to a monitor but I was hoping there would be a way to reset the realvnc via the ssh.

Thanks for reply.

Mick

[Boatingbaileys]

You should be able to do that, can you see the start menu at all?

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If not try sudo raspi-config from a terminal and then I think it's advanced options. I can't remember on the pi if the command line and the gui are two different settings- worth a try anyway

[mcgarrydware]

Cheers for the reply. Unfortunately I am at home at the moment. will go down to the boat tomorrow and try your suggestion.
Will let you know how I get on.

Mick

[mcgarrydware]

Ok I got to the boat today. I couldn't try to connect to a monitor as I had forgotten that the raspberry pi 3b I was using
uses a full sized hdmi connector and on the boat I only had the micro one that the raspberry pi 400 uses.
However I did also try the raspi-config and when I rebooted it was working fine. Only problem is I changed a few
settings. Not sure which one did it. I enabled some compositor and reduced the res setting to the lowest.
will have to mess around someday to figure out which one it was. So happy its working again.

Mick

[Boatingbaileys]

Thats good news - Thanks for the update.

[jim321]

I think you need a dummy HDMI to charge to higher resolution

[mcgarrydware]

I think you need a dummy HDMI to charge to higher resolution

I wondered about that as it's the headless version of openplotter that is on my raspberry pi.
I thought it would not connect to a monitor, never checked before. Probably wrong..
I assumed it was a virtual desktop it was
sending out to the client computer.

When I figure out the reason it's working now I will let you know..

Mick

[jim321]

https://movingpackets.net/2021/03/19/hdm...-with-vnc/