Monitor turning black after following LCD integration instructions

December 27, 2023, 12:12

lems

I followed this instruction to setup my 3.5 LCD screen: https://www.instructables.com/Raspberry-Pi-4B3B-35-Inch-LCD-Touch-DisplayScreen-/ Then suddenly my monitor turns black screen and my LCD only shows white screen. I can't use my RPI since it has black and white screens that's why I can only use its memory card to fix it. What should I do, I already tried editing its config.txt but nothing works. Here is the content of its config.txt:

oops.se

If you have the latest Raspberry Pi OS (Bookworm) that uses Wayland it will not work.

lems

what can i do now

lems

it is only black screen

oops.se

By replying what OS you have installed ? And if your answer is Bookworm I will suggest that you switch to Bullseye. But first you need to answer.

oops.se

And the second thing, DONT CROSS POST!

lems

sorry sir for cross posting im a newbie

lems

im using bookworm

oops.se

Bookworm Uses Wayland as Windows composer so I recommend that you switch to Bullseye

lems

this code caused me problems: sudo rm -rf LCD-show git clone https://github.com/goodtft/LCD-show.git chmod -R 755 LCD-show cd LCD-show/ sudo ./LCD35-show

lems

how can i switch

lems

thank you

oops.se

By imaging your SD card with Bullseye

lems

is that the only choice, because there is a lot of configurations already done in the original OS

oops.se

Well if you read the code in sudo ./LCD35-show and reverse what it has done

lems

is that possible?

lems

sorry im a newbie

lems

we are working on a project, my friend gave it to me, then this happened

lems

it is working initially then this happened

oops.se

Perhaps. And sometimes the hard school is to start over when you do something that you don't have full knowledge about.

oops.se

I always read the install script before I implement it

lems

is it possible to edit the config.txt to modify the hdmi settings?

lems

<@796000224690307072>

lems


lems

it shows like this

lems

are you familiar sir

lems

<@796000224690307072>

oops.se

If you examine the LCD35-show you can perhaps reverse the HDMI settings

oops.se

I have a similar 3.5Inch display

lems


lems

the taskbar is missing

lems

maybe i have incorrect hdmi configuration?

oops.se

Yes, wrong resolution