Waveshare 7inch LCD IPS 1024×600

Edward193963 · 22 February 2022 23:47

Hey guys,

I purchased a Waveshare 7inch LCD IPS 1024×600 from your guys last week, delivery was prompt which was great. I am having trouble getting the screen to connect to my pi 4 8gig. The screen works but only 600x400 res. I see that the website suggests that there are more steps to make this work. I have tried all these and eventually came across this Github post saying that the screen instructions haven’t been updated. But even these instructions aren’t very clear either. I am new to Pi’s but not a total new person to computers. Any help would be greatly appreciated.

gist.github.com

https://gist.github.com/pierrealexaline/0aa6d38ccdcf6cb21fc4c22387a413be

WAVESHARE_7_INCH_SCREEN_MODEL_C_CONFIGURATION_FOR_RPI4.md

# How to connect and configure a 7 inch touchscreen (model C) from waveshare to a rasberry pi 4 model B
## presentation
Since the last version of Raspbian (Buster) and with the last version of the raspberry pi (rpi4b) the tutorial of the screen has not being updated correctly by Waveshare.

### The 7 inch hdmi screen (model C) from waveshare
[Waveshare 7 inch screen (model C)](https://www.waveshare.com/wiki/7inch_HDMI_LCD).
The 7 screen inch model C from Waveshare is originaly a basic LCD 1024x600x60Htz Hdmi touchscreen caracterized by a  very low power consumption (5v - 30mA to 300 mA with backlight on). It can run on an USB port. This screen is compatible with most OS and architectures (it can run on 32Bit, Arm, 64bit, or Windows 10, linux Debian, and a lot of SBC like the Bananapi, Raspberry pi, Odroid ...).

### The raspberry pi model 4 model B
[Raspberry Pi 4 Model B - official presentation page](https://www.raspberrypi.org/products/raspberry-pi-4-model-b/). The Raspberry Pi 4 model B has been launched at the end of 2019. Some problems occurs and need to be fixed. For example, Ubuntu is not totaly compatible at this date. It can't manage the new 4 Gb range of ram of the rpi4b.

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cheers

Edward193963 · 23 February 2022 00:29

Im also having problems turning a .txt file into a no extension ssh file any assistance with this would also be great, cheers

Edward193963 · 23 February 2022 00:49

according to this guide on the official website I should add the following txt to the “end of config txt”

max_usb_current=1
hdmi_force_hotplug=1
config_hdmi_boost=10
hdmi_group=2
hdmi_mode=87
hdmi_cvt 1024 600 60 6 0 0 0

If I do it this way the unit screen boots but in 600x400

and if I do it this way the screen doesnt boot at all

Trent5487676 · 23 February 2022 01:20

Hi Edward,

Could you please confirm which version of the Raspberry Pi OS you are using and whether you are using a full or lite version (No desktop interface)? As Raspberry Pi recently went to the new major version (Bullseye) a lot of driver dependencies haven’t been sorted out yet so the Waveshare screens need different configuration depending on whether you are using Buster or Bullseye.

Regarding the extension of your SSH file, if you have your Pi on the desktop you can enable SSH via the Pi configuration menu and avoid the need to use text editors on the boot image altogether.

Edward193963 · 23 February 2022 03:08

Hi Trent,

This is the version I am using, I would guess that it is the latest version.

Trent5487676 · 25 February 2022 05:31

Hi Edward,

Since Bullseye launched there have been a lot of dependencies broken or missing and a lot of workarounds proposed to patch things.
I’ve just tested a display from stock with a newly-flashed, fully updated Bullseye card using a Pi 4B and it worked without changing the config.txt file at all.

I suspect that there may have been an update released which makes the modifications recommended by Waveshare unnecessary.

I’d suggest grabbing a spare SD card and flashing a new image of Bullseye, then boot up your Pi and make sure it’s up to date with:
sudo apt-get update
followed by:
sudo apt-get upgrade
Then see if your display is working correctly without further tweaks.

If you still run into issues let us know and we can dig a little deeper, but hopefully, your problem has been fixed with a software update since you first received your display.

Once we confirm your unit is working without modifications I’ll remove those config modifications from our product page.