Rpi touchscreen blank with backlight on after bootup

I use an Rpi 4B with the official touchscreen. I restarted the Pi recently and after splash screen is displayed and it completes bootup it just has a blank screen with the backlight on. I am able to connect via WiFi from my laptop and use the printer like that with no issues. I loaded a fresh RatOS install on a new SD card and the display works normally. I don't want to go through the entire setup process again for a new install. Any ideas on how to troubleshoot or fix this?
9 Replies
miklschmidt
miklschmidtโ€ข16mo ago
So, same setup, same RatOS version, one sd card works, the other doesn't?
jpvonoy
jpvonoyโ€ข16mo ago
I just looked at the versions. The RatOS version that isn't displaying properly is shown as "v1.2.4-4-g898b8ae" in the Update Manager. Under System Loads, it shows "Distro: RatOS 1.2.2 (buster)". The fresh install that works has "2023-04-11-RatOS-v2.0.1-raspberry-rpi32.img.xz"
miklschmidt
miklschmidtโ€ข16mo ago
I recommend using v2 regardless, v1.2.x won't be supported after the end of this month. Unfortunately you can't just copy your printer.cfg, but you can use it as reference. Everything in useroverrides would probably transfer just fine though.
miklschmidt
miklschmidtโ€ข16mo ago
You can export and import your history via this guide: https://www.angelrojasjr.com/2021/12/19/moving-moonraker-to-from-a-pi/
Angel R. Rojas, Jr.
Angel's Personal Blog
Moving Moonraker to/from a Pi - Angel's Personal Blog
If you like to tinker, like I do, you may find yourself doing crazy things like loading Klipper on your Linux laptop and running out of time to move it to Raspberry Pi so you end up printing for over 150 hours on it. After getting tired of having to have the laptop hooked upโ€ฆ Read More ยป
miklschmidt
miklschmidtโ€ข16mo ago
It shouldn't take you long Your board is already flashed, so you can skip the configurator after the wifi has been set up.
jpvonoy
jpvonoyโ€ข16mo ago
Great information, just what I was about to ask. I appreciate your assistance. I remember it took me weeks to figure this all out and get everything setup properly when I built the machine. I was dreading attempting that again.
miklschmidt
miklschmidtโ€ข16mo ago
Most of it is the same settings it's just in a slightly different order now So it shouldn't be too bad this time around, you already know all the proper values ๐Ÿ™‚ If you have trouble, you know where to find me ๐Ÿ™‚
jpvonoy
jpvonoyโ€ข16mo ago
Thank you. And thank you for all your work on this project, I've been really enjoying this printer!
miklschmidt
miklschmidtโ€ข16mo ago
Appreciate it! ๐Ÿ™‚
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