After the release of the new Raspberry Pi 4 model B, Raspberry PI OS (previously called Raspbian) a Beta version of the 64 bit was published. https://www.raspberrypi.org/forums/viewtopic.php?f=117&t=275370
I decided to answer myown Q because I dug through a lot of material before asking here, and found a lot of solutions dealing with similar, but not the same issue.
Thanks to @Andyroo the why this happened became clear.
So, newest Raspberry Pi OS changed policy regarding the analog 3.5 jack audio output, and the HDMI.
Now, the 3.5 output is registering to ...
Without a datasheet this is not possible, as in the chance you connect everything correctly is really small.
I found a site where they sell these: https://www.witrigs.com/oem-rear-camera-for-samsung-galaxy-j5-2016, maybe you can ask them if they have a datasheet/pinout.
The quickest way to come up with a definitive answer is to try.
The only problem I see is that GPIO 0 and 1 may be probed during boot to see if a HAT is present. Only you can know if that will upset your system.
After boot you should be able to use GPIO 0 and 1 as normal.
There is an update for the Via VL805 USB controller firmware here (release 0138a1):
After applying this and rebooting I found the issue to pretty much be resolved. There was no heavily appreciable input lag. The system still felt busy, but not overwhelmed, and definitely not cutting out.
I ended up connecting the BT headset to my Pi using the GuliKit audio adapter (I got it for Nintendo Switch but it comes with a USB adapter and works with computers too). It supports sending audio to two headsets at once, and is essentially plug and play: I just plugged it into the Pi's USB port and it simply appeared in the list of audio outputs.
Thanks @Andyroo for sharing the link
I found I missed one command to run:
rabbitmq-plugins enable rabbitmq_mqtt
So overall, I ran these following commands:
sudo systemctl enable rabbitmq-server
sudo systemctl start rabbitmq-server
sudo rabbitmq-plugins enable rabbitmq_management
sudo rabbitmq-plugins enable rabbitmq_mqtt
You tried to use /etc/dhcpd.conf. It may be a typo, but have you checked /etc/dhcpcd.conf (different from the one you mentioned)?
If you have a static ip configured there this might explain what's happening here.
After focussing on top (ht @coderMike/@DmitryGrigoryev), I noticed RTW_CMD_THREAD spiking at the same moment as the stall occuring. I then remembered that the power save mode of the RP-wifi could cause similar problems, but this is switched off by default nowadays. But as I am using a wifi dongle instead of the onboard wifi, i checked, and the power save ...
Filenames that start with a period (aka. dotfiles) are considered "hidden", and aren't displayed by default by commonplace tools which respect this convention. Historically, configuration stuff is usually dotfiled. However, the intention is not that you not be able to find or access them (that is done with permissions), nor does it imply they aren't human ...
First of all: you are running Raspbian Stretch but tagged the question with pi-4. This is not possible. A Raspberry Pi 4B can only run Raspbian Buster.
Your timer Unit looks good and should do. But you define some default settings that are not necessary. This normally should not do any harm, but having problems it's always a good idea to configure with ...
A 'portable' 2.5" USB HDD can take bursts of considerably more than 500mA at the time of spin-up, up to 1000mA or more, and also when seeking or carry out extended reads/writes. Also, the total current available from all of the USB ports is 1200mA, so using 2 USB drives at once is VERY unlikely to be successful, even with the official 5.1v 3.0A (3000mA) ...
I ended up solving this by soldering in diodes in the usb cable.
I wanted to run a dual HDD USB RAID NAS but the boot failure (back powering issue) got me flummuxed for a bit. Didn't want to use try usb hub (party for speed reasons - hdd would be connected through two usb hub chips inc onboard one). I used the split power cables from ebay - feeding the non-...
tldr; .. Chain it with an unpowered hub in between.
I had this problem, too. I believe I found a tenable solution. I happened to have a spare Ankur unpowered hub that I thought maybe could take the load of power off the powered hub's host plug. It worked! sudo reboot brought me right back up again, with my powered hub still seen and working.
Connect the ...
I had the same problem. I found this solution to work.
Flash a fresh Raspbian install to your SD card, which will be used to boot the system.
Use fdisk to partition the SSD. Assuming the SSD is /dev/sda, run fdisk /dev/sda, d, n, enter for defaults, w, q.
Format the partition: mkfs.ext4 /dev/sda1
Mount the partition:
There could be one or more issues going on:
Your display might not be 1080p capable
The content you are watching may be out of sync of what the display is capable of.
Your internet connection may be bad.
Let me know what the issue may be.
You can enable and disable WiFi with
sudo ip link set wlan0 up
sudo ip link set wlan0 down
in Raspbian but I am unsure if this fully powers off the hardware as they are still not hard blocked.
You can disable WiFi and Bluetooth via entries in config.txt BUT they require a reboot to be activated:
i'm running with rpi4 4gb (allocating 2.5gb ram), runs fine for 4 people, although at times i'm still getting the "running xxx ticks behind error" in the console. I've got a 54Pi knockoff fan, which at keeps the temp from 40-45C. I've overclocked to 1.75ghz, running fiber optic connection, so far pretty good. will try to run with a few more players soon!
I find the Raspberry Pi Imager fails to verify about 20% of the time. I have no explanation as to why but repeating the process with the same SD card and balenaEtcher produces a working install.
I usually flash large (128GB) cards which may or may not be a factor.
This paper mentions there is no open and public board that supports PAC instructions. iPhone A12 is the only option that is proprietary. Therefore, the paper has simulated some instructions and tested on Raspberry Pi 4.
The issue could stem from the fact that some cheap USB hubs back-power an unpowered host when those hubs are powered: essentially, the 5V circuit of the hub is directly connected to the 5V line of the upstream USB port, allowing the current from to hub to power the Pi. The Pi 4 requires a power cycle to reboot on some bootloader settings (POWER_OFF_ON_HALT=1?...
I found a new way to get docker running on the lastest raspbian OS with raspi 4b. Unfortunately I had to scrap berryboot because the kernel for berryboot isn't compatible with docker I believe so no SSD :(
Download Debian Buster
Enable SSH file in root of SD card if not running desktop
curl -fsSL https://get.docker.com -o get-docker.sh
To keep your installation up to date you should do system upgrades from time to time with sudo apt update && sudo apt full-upgrade. If you have done this, then you should always backup the SD Card together with the SSD storage. With an upgrade it is likely that also the kernel is upgraded together with its modules. The kernel is stored at the SD Card,...
Yes, the SD card is only used to read data while the pi is booting.
Rather than back up the SD card, you could take a copy of the tweaked cmdline.txt used to mount your USB drive, or just write down the partition id you used.
If you follow the guide you will have the SD mounted as /boot or /boot/firmware, which allows the SD card to be written for kernel / ...
I have just checked your test video and it works fine in the latest Pale Moon, with sound.
Pale Moon browser is a fork of Firefox which supports older Firefox addons (which Firefox dropped after version 52). It is slower than Chromium but requires significantly less RAM, so it can actually outperform Chromium on a system which is short on memory.
Pale Moon ...
This in fact is a known problem with the Sense-Hat. See https://github.com/astro-pi/python-sense-hat/issues/96 for detail.
Apparently, the Sense-Hat interferes with the resolution auto-detection if there is no monitor attached (works fine with monitor attached).
The work around is to manually specify a resolution (you do not have to force HDMI). You can ...
The behavior you describe can apparently be achieved through installation and configuration of the hdparm utility (ref).
You might check the Arch Linux repo for this package, or you might try posting this same question on the Arch Linux New User forum.
Try plugin your display to the other port. I spent an hour to figure out that my display was not on the primary display port and the secondary port was showing rainbow. Switched my display to primary port i.e. next to the power input and it came up :-)
I believe the better way to capture a series of frames is so use the capture_sequence() method. Please see this link for context: picamera docs
This snippet should help:
with picamera.PiCamera() as camera:
camera.resolution = (1024, 768)
camera.framerate = 30
Right from the Raspberry Pi 4 page
You will need
- A 15W USB-C power supply – we recommend the official Raspberry Pi USB-C Power Supply
15 watts is a lot more than a typical USB hub must provide, see also Wikipedia - USB - Power
What you need is a simple router that routes traffic from the desktop computer to your WiFi internet router. This can simply be configured using systemd-networkd.
Just follow to Use systemd-networkd for general networking. You can use section "♦ Quick Step". Then come back here.
Now configure wpa_supplcant to connect to your internet router. Create this ...
Not a great idea as security settings can get in a right mix as the web pages (and services) run under the user www-data and not the user pi.
If you determined to do this (and it's really not a good idea for security of the website) then Apache lets you do it with the alias module (mod_alias). Once enabled, you can set something like the following:
I find that a better solution was to attach the USB power adapter to a smart adapter e.g TP 100 (Tapo)
In this way I can also use a cheap USB3 powered Hub - the Ugreen was not 100% consistent
Now when I reboot the Pi4 , I just power-cycle the USB hub through the internet and presto the Pi4 does its normal stuff.
This is 100% consistent- albeit at the ...
Welcome to the Pi.
Unfortunately you may well end up frying the Pi if you connect the GPIO pins as a switch (to say nothing of possibly burning your house down and / or killing folk if using mains voltage).
Can I suggest that you have a look through the books published by the Foundation to gain a basic understanding of the Pi and especially the intro to ...
I can confirm that MS Windows 10 has a problem to connect to an access point established by wpa_supplicant (using mode=2) and only accepting WPA2 (RSN) encryption. I haven't seen this before in my tutorial you have used, because I still use WPA encryption as fallback. And that works.
About IPhone I cannot say something because I don't have one.
I have ...
Problem solved - I formatted the SD card, installed Rasbpian, and all the relevant packages again. in one of the packages I was asked if I want code coverage for fuzzing installed (KCOV), and this time I replied no.
The problem no longer occurred when compiling the kernel module.
I've been able to watch Netflix quite nicely on my Raspberry Pi 4 by installing LibreELEC OS OS (Leia 9.2.1) on it and adding the CastagnalIT Netflix plugin for Kodi on top of that.
If I understand correctly, the plug-in is indeed based on the technique that @dmitry-grigoryev mentions in his answer.
I've created a 1-line-paste solution to this, in case it's helpful for anyone:
It essentially comes down to:
1.) Having the latest Raspbian installed
curl -fsSL https://pi.vpetkov.net -o ...
If you want to use Network Manager you need to disable the default Raspbian dhcpcd network management tool. The 2 systems are incompatible.
There is no advantage in Network Manager, and it does not really suit the Pi modus operandi - in particular swapping SD Cards between Pi won't work - each Pi needs to be configured individually (although I cannot be ...
The other user didn't really answer the question asked, about what usb to ethernet adapters work with the Raspberry Pi 4. Here are some forum links I found that may help. I don't have a RPi 4 myself (yet!) so I can't confirm, but it seems that most adapters will work fine, with maybe a slightly more limited speed.
For physical devices what counts on Linux ...
On Samsung Series 6 TV, no matter what I did, the 60hz wasn't working. Other devices (Fire TV 4k, Nvidia shield TV) don't have this issue. So, I first plugged in Nvidia Shield TV and set the 4k resolution at 60Hz then unplugged it and plugged in Raspberry pi in off state and started it. Now it shows 4k 60p. Hope this helps.
I was able to install 64-bit archlinux on a Raspberry Pi 4 after seeing @VinnieThePooh's answer which contained a link to root filesystems which I then could burn into the SD Card and boot.
Here are the exact steps I took:
1. Insert your SD Card and run blkid to see connected device names:
For me the device name was /dev/sda but it might be ...
You can throw an eye over there: (rootfs, just use it as plain Arch image):
I'm now on 4.19.114 kernel (image from March,8); works quite good, Wifi and Bluetooth are on place (the latter needs a couple of tweaks, of course, but it works at last). Since I had a couple of upgrades, I'm not sure what's ...
You could try removing the desktop tool and re-installing it:
sudo apt update
sudo apt remove wpagui
sudo apt install wpagui
To start it
My Buster box currently reports:
wpagui/stable 2:2.7+git20190128+0c1e29f-6+deb10u1 armhf
Not sure if this will help or make it worse so please have a backup of the SD card :-)
I created some udev rules as follows:
ACTION=="add", SUBSYSTEM=="rpivid-h264mem", SYMLINK+="argon-h264mem"
ACTION=="add", SUBSYSTEM=="rpivid-hevcmem", SYMLINK+="argon-hevcmem"
ACTION=="add", SUBSYSTEM=="rpivid-intcmem", SYMLINK+="argon-intcmem"
ACTION=="add", SUBSYSTEM=="rpivid-vp9mem", SYMLINK+="argon-vp9mem"
to make all this work until the Kodi binary ...