Advanced users • Diagram of the boot sequence for Rapsberry pi 4
Hi I'm following my previous postI try to understand the boot sequence and the files linked to all of the those steps.Here my supposition, please correct me.1. Bootloaderlocated in the Broadcom ROM...
View ArticleTroubleshooting • Raspberryi card shows message
HiI am curious. Device features are all the same, only the SDcard is different. I switched from Samsung SD card to Raspberrypi card. This message appears on the black screen right after the rainbow at...
View ArticleTroubleshooting • The Raspberry Pi 5 using the armhf system encounters an...
Hello, I installed the 32-bit system 2024-11-19-raspios-bookworm-armhf.img on my Raspberry Pi 5. I want to compile the .ko driver module in the current Raspberry Pi environment. I used the command...
View ArticleTroubleshooting • RPi 5 cursor latency (on Xorg) much higher than on RPi 4...
Self-explanatory. I have a Pi 5 (8GB) running RPiOS Bookworm (using X11 instead of Wayland because the latter just inherently (?) does this kinda thing, will attempt to look into this later and file...
View ArticleClik here to view.
Linux Kernel • Writing a DTS file for the audio codec.
Hello,I'm a beginner in writing a .dts file for the audio codec (MAX98090), and although I faced many challenges in writing a .dts file, I was finally nearing completion, but could not complete it. I...
View ArticleTroubleshooting • Add user to welcome screen challenge
Hello,I added a user to the Pi5 desktop via Terminal -> $ sudo adduser -> followed the guide -> rebooted.Welcome login screen has disappeared and logs straight into the Admin user.The...
View ArticleTroubleshooting • R Pi 4B 8 Gb and official 800x480 touchscreen -cannot get...
I hooked up my Pi 4B to the touchscreen, booted with fresh copy of Bookworm 64-bit. Started up just fine. Going to set up the machine, when I get to the create account field, enter username, enter...
View ArticleGeneral discussion • hdmi_pixel_encoding=1 can not be used for CM5
Hi Sir,We are using one HDMI LCD which works well on CM4 by using the following config,hdmi_force_hotplug=1hdmi_group=2hdmi_drive=2hdmi_mode=87hdmi_cvt=720 1280...
View ArticleBeginners • Wayland Uses Too Much Memory
I installed a new app (Linrad software defined radio) on my Pi, which loads and runs but then everything freezes and not even the mouse will respond to input. I rebooted my Pi 5 (4 GB RAM) and this...
View ArticleBeginners • How work `rpi-eeprom-config` program
Hi,I was wondering from where rpi-eeprom-config read the configuration when doing a:Code: $ rpi-eeprom-config[all]BOOT_UART=0WAKE_ON_GPIO=1POWER_OFF_ON_HALT=0Is it directly from the eeprom...
View ArticleGeneral • DMA on PWM hangs the pico
Trying to send continuous samples to pwm with the interrupt on DMA to reset samples to the beginning on pico 1 on and latest SDK, DMA appears to run once and then the pico hangs completely and I start...
View ArticleGeneral discussion • What is performance of the VideoCore VII GPU in the CM5?
Hi,Can anyone tell me what theoretically the maximum number of GFLOPS is that the VideoCore VII GPU can handle?Statistics: Posted by simmania — Sun Dec 08, 2024 10:01 am — Replies 0 — Views 30
View ArticleSDK • prevent "Downloading Picotool"
Hi, every time I do clean build is see "Downloading Picotool". I already have it since the last build 15min ago. Why does it default to constantly refetching? More to the point how can I deactivate...
View ArticleGraphics, sound and multimedia • Pi4 composite video, how to change resolution
I had an old Raspberry Pi project that used a composite video display of resolution 480 x 284. The old Pi died and Ive replaced it with a version 4.Ive managed to get the composite video working using...
View ArticlePython • how to edit Thonny stdout colours
Where are the Thonny theme config files stored on the rPi? I'd like to edit the stdout foreground and background colours. I know you can set them with escape/ansi codes and various libraries, I want...
View ArticleGeneral discussion • Browser oftren Hangs.
so I have a RPI 4 Model B Rev 1.5 8gb ram running Raspbian debian Trixie arm64 buildI have Brave browser and the default chromium installed. they work ok, but sometimes doing some things the os gets...
View ArticleTroubleshooting • GPIO Onoff.js module node.js not working on RB PI 2B
I try simple code pro blinking on LED on GPIO4 blink.jsCode: var Gpio = require('onoff').Gpio; //include onoff to interact with the GPIOvar LED = new Gpio(4, 'out'); //use GPIO pin 4, and specify that...
View ArticleBeginners • Should a RPi be powered off completely before disconnecting boot...
I've been using the Raspberry Pi for years—but having thought about it—have never heard or read anyone address this basic topic directly.The following question applies to a Pi 4B with USB boot running...
View ArticleGeneral discussion • Rasberry pi Connect Beta Problem
There is a rasberry pi in the distance. I want to connect with Connect beta. There is internet but it always says Last seen less than a minute ago. But I cannot interfere with the screen in any...
View ArticleTroubleshooting • Remote server unresponsive
I have a remote Rasperry Pi server on a remote island that is very difficult to physically access before the upcoming spring. The server is connected to a local wifi network served by a 4G connection....
View Article