Re: Wrong LCD resolution on RPI

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

Lloyd Parkes <lloyd%must-have-coffee.gen.nz@localhost> wrote:
> I have what I think is a standard Raspberry PI 7" LCD on my RPI 3 B. 
> It's resolution is listed as 800 x 480. I'm running the latest disk 
> image from Jun (2022-10-16).
>
> When I boot NetBSD on it, the console is described by stty as 80x22 and 
> while the text columns reach to both sides of the LCD shroud, the rows 
> seem to to stop one row short of both the top and bottom of the shroud. 
> I double checked the rainbow boot logo and it reaches all the way to the 
> top and bottom of the LCD shroud.
>
> dmesg tells be that the genfb is 1280 x 720 and X also only wants to run 
> in 1280 x 720, but X is obviously scaled down to try and work with the 
> actual LCD resolution. X displays all the way to the LCD shroud sides, 
> but like wscons it doesn't display all the way to the top and bottom of 
> the shroud.
>
> Does anyone know how to adjust genfb's resolution? I've had a look at a 
> few things in documentation for config.txt and it all seems to be 
> related to HDMI and third party displays, neither of which I have.

How is the LCD panel connected to the RPi?