Hi all,

I am hitting a roadblock and thought I'd ask here because I must be doing something wrong. I'm setting up one of these newer waveshare RP2350-Touch-LCD-3.5 boards, and am having an odd issue with the BG color. I noticed it when trying to list the pins. The BG color of the display goes white after the initial print fills the screen, and then each new line is correct (white text on black BG) but turns white on white as soon as it scrolls up. This happens even on a fresh boot with no program loaded.

(edit: updated to add a gif)
 


Edited 2026-05-06 06:51 by ebbandflow

  ebbandflow said  

(edit: updated to add a gif)

Just so you know, imgur is blocked in some countries, such as UK

John

  JohnS said  

  ebbandflow said  

(edit: updated to add a gif)

Just so you know, imgur is blocked in some countries, such as UK

John

Thank you for the heads-up John, I did not realize that! I tried to upload here but it rendered as a still image. Do you recommend any specific services that are more accessible?

Thanks,
James
Edited 2026-05-06 07:22 by ebbandflow

This may be a workaround for those at their computers. Here is the .gif file, zipped up for uploading.
white-out.zip

G'day James,
Been caught out by this one before, try:

If I have that correct it is:

OPTION LCDPANEL CONSOLE Font,F-colour,B-colour,B-light,NOSCROLL

NOSCROLL works for slower serial LCD's or for those that cannot be read from (ILI9488 etc). The other option is to use one of the buffered drivers.

Regards,
Lyle.
Edited 2026-05-06 15:49 by mozzie