Beginners • How to revert changes made by rpi-update?
After running rpi-update (I thought it was required to get my NVMe drive working), my system started showing this message every time I try to update:Newer kernel availableThe currently running kernel...
View ArticleTroubleshooting • Re: Rasp Pi 5 boots, but no display on Samsung 4K monitor
I pulled the SD card and the RPi 5 starts up and display works fine. In diagnostic mode, the display line isdisplay: DISP0: HDMI HPD=1 EDID=okAny tips would be super appreciated!The only real tip that...
View ArticleBeginners • Re: How to revert changes made by rpi-update?
Code: sudo apt install --reinstall linux-image-rpi-v8 linux-image-rpi-2712 raspi-firmwareorCode: sudo apt purge linux-image-rpi-2712sudo update-initramfs -c -k 6.12.34+rpt-rpi-v8Statistics: Posted by...
View ArticleBare metal, Assembly language • Re: System MMU existence/location on Pi 4B
this is how it worked on the pi0-pi3, you have 64 pages of 16mb each, and that configures the mapping from "arm physical" to the VC4 busonly the VPU can configure it, and 99% of the time, you dont...
View ArticleBeginners • Re: DMA with Raspberry Pi 4
Why do you want to do this? What are you trying to achieve?If you give us some idea; perhaps someone may be able to suggest an alternative method of achieving your objective.Statistics: Posted by...
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Advanced users • Re: Running 32bit ELF executables on 64bit Pi OS
Hi,When I originally created this post, I complained that there was no debugger anywhere that could debug my ELF file, even though the OS could load and execute the ELF file. A few of you comment on...
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Beginners • Re: Tachometer
Here's a few links that I found that might help.viewtopic.php?t=354632https://www.homemade-circuits.com/tacho ... g-arduino/https://www.makerguides.com/arduino-tac ... ct-sensor/There are loads...
View ArticleBeginners • Re: How to emulate X86 on Raspberry Pi Zero?
AS far as I know, C64 is successfully emulated on RP2040. You don't even need zero for this.Depends on definition of 'successfully'. Perhaps If it means something like 'very poorly but still can fool...
View ArticleRaspberry Pi OS • Re: My external drive is detected as such despite being...
I found the problem. The partitions were mounted into users' /home dirs. When mounted into /mnt/ the problem doesn't happen.1. The problematic fstab entries for reference :Code: UUID=xxx......
View ArticleAdvanced users • Re: Why is boot mounted rootfs using NFS version 3, not 4.1?
Really? Nobody knows why?Statistics: Posted by jeremym — Sun Sep 07, 2025 11:00 pm
View ArticleGeneral • Re: PT52-Lua The Modern Retro computer
I don't see it as being problematic. As a Pi Zero 3W (2W+ or 2W-) it will be just like every other Pi Zero and SBC, everything hidden behind abstraction layers, with only the bare metal fans having to...
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General discussion • Re: What product would you like to see?
Pi 500 board supplied to other keyboard makers to product 85% TKL keyboards with a choice of Cherry red or brown. The Pi 500 keyboard is a step back in readability when compared to the 400. Working...
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General discussion • Re: Difference between RPI5 (4gb ram) and RPI4b (8gb ram)
Our local prices:Pi 5 4 GB AU$106.95 + official power supply $21.07 = $128.02Pi 4 8 GB $134.57 + $11.90 = $146.47The Pi 5 wins.My choice:Pi 5 8 GB $142.60 + official power supply $21.07 = $163.67I had...
View ArticleDevice Tree • Enable I2C bus on PCIe FPC
Hi there,Looking at the dtoverlay here it looks like the 16pin FPC has I2C signals on the sideband signal lines.Is it possible to enable them after bootloader doing the PWR_EN and DET_WAKE...
View ArticleZephyr • Re: What is Zephyr?
Anyone care to give us a TLDR version of what Zephyr will do?How, or if, it will enhance Micrcopython on the Pico/Pico2 ?Seems to me it's an alternative to FreeRTOS et al. How it fits with MicroPython...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Re: Enabling SPI CE1 and disabling SPI CE0
Maybe the complete details would be that, I have been using SPI 0.1, SPI1.0, SPI1.1, SPI1.2 for other purpose. As the SPI0.0 is not being used by me, I want to use the GPIO 8 to be used as...
View ArticleHATs and other add-ons • Re: Uputronics GPS / RTC board + USB3 on Rpi4b Problems
did you ask uputronics support, as they are the manufacturers of said add-on board?Statistics: Posted by aBUGSworstnightmare — Mon Sep 08, 2025 5:20 am
View ArticleDevice Tree • Re: Enable I2C bus on PCIe FPC
Look at viewtopic.php?p=2327248&hilit=pcie+i2c#p2327246Statistics: Posted by aBUGSworstnightmare — Mon Sep 08, 2025 5:23 am
View ArticleBeta testing • Enabling RTC battery charging on Trixie makes RTC...
Loaded the Sep5 nightly of Trixie on 2 Pi5 16G units. All was working great. Just received my RTC batteries for them and plugged them in. When I do:Code: more...
View ArticleBeta testing • Re: Enabling RTC battery charging on Trixie makes RTC...
Just tested with 9\9 nightly and same issueStatistics: Posted by 5ft24dave — Tue Sep 09, 2025 12:46 am
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