Questions tagged [pi-400]
For questions that apply specifically to the Raspberry Pi 3 and not other/all models.
20
questions
-1
votes
1
answer
39
views
Make sure that RPi 400 clock is always synced
tl;dr Exactly what steps must a newbie like me undertake to configure RPi 400 in the way that it obtains current time from some official NTP server every time it boots up?
I am just trying my first ...
- 139
0
votes
1
answer
40
views
trying to run the pi400 on battery/12v
I have powered my Pi 3s and 4s successfully via 12 volts with various battery packs.
I'm trying to do the same with the PI400. Has anyone successfully powered the Pi400 via 12v and if so, how?
thx
- 1
0
votes
0
answers
13
views
Missing vulkan extension: VK_KHR_storage_buffer_storage_class
According to Igalia the v3dv driver should have the extension.
But vulkaninfo on an rpi-400 only reports back with these extensions:
Device Extensions: count = 5
----------------------------
...
- 162
0
votes
1
answer
104
views
OpenCL on rPi 400
I have an rPi 400 running Raspbian (Debian GNU/Linux 11.)
If I run clinfo on it, I see 0 platforms.
I have no /etc/vendor/ directory either.
How do I run OpenCL on my rPi400?
- 162
0
votes
0
answers
34
views
raspberry pi wont show the desktop
my raspberry pi 400 does not show the desktop even after reflashing the sd card. the ttys work fine. when i reflash the sd card the setup page will shw and i will be able to set it up and reboot. when ...
-2
votes
1
answer
42
views
What damage can a Y-Cable plugged to the the USB-A 3.0 port do to the PI400? [duplicate]
I'm using a USB Y-Cable with my Pi400 to power and use an old WD 2TB MyPassport Usb3.0 HDD. I'm using a separate 5v-1a PSU so the HDD doesn't have brown-outs.
So far I've been using using the cable ...
1
vote
1
answer
81
views
Y Cable to power Usb3 HDD on Pi400
I'd like to use an external usb3 2Tb WD MyPassport 5200rpm HDD with my Raspberry Pi400 for a large Retropie project.
I think having it running powered from the Pi400 alone is not giving enough power ...
-2
votes
1
answer
109
views
Why does Raspberry Pi 400 use white color (and not black) for its USB 2.0 port?
On a quick look up, it seems the general trend is white for USB 1.0 and black for USB 2.0. I also glanced through the USB 2.0 specification to try find anything relevant but it seems a bit ...
- 115
1
vote
1
answer
56
views
DS18B20 not showing up Pi 400
I have a raspberry pi 400 running ubuntu server.
I have a DS18B20 with a 4.7k resistor connected from the power to the data wire.
I boot up the pi and run the sudo modprobe w1-gpio and sudo modprobe ...
- 34
0
votes
0
answers
28
views
Is raspberry pi 400 USB-C otg mode working, and if so, is it only in slave mode? [duplicate]
So I got myself a Raspberry Pi 400, because I couldn't find 4B 4GB at reasonable prices. Sadly, as I explained on the sister site, my tinkering soul suffers lack of USB ports. I can connect what I ...
- 101
1
vote
0
answers
266
views
Raspberry pi 400 HDMI audio problem with Bullseye
I see there is another question about HDMI audio on here but I have a permutation of it so I ask my question as well.
I've tried everything to get HDMI audio on my pi400 working properly.
I think it's ...
- 11
0
votes
1
answer
86
views
Peer-to-peer networking with ethernet
I had an idea for transferring data between Pi's. It involves directly connecting two Pi's to each other only using a single cat5 ethernet cable, and transferring data in a peer to peer manner. I have ...
0
votes
0
answers
51
views
Can I install os on Pi 400 without sd card reader?
I've been having problems installing an OS onto my Raspberry Pi 400 as I don't have an SD card reader, I've seen previous posts along these lines but none of them specify if I can do this with a ...
- 1
0
votes
0
answers
25
views
How to get official ubuntu 18.04.05 image to work on RasPi 400?
I am trying to flash the DOWNLOAD LINK REMOVED to a rasberry pi 400. However, the device does not detect any boot images. I understand that the image version is for raspi 4. However, due to a shortage,...
3
votes
0
answers
280
views
Pi 400 key cap replacements
I ordered 6 raspberry pi400s for my class of elementary school students a couple of months ago. Already some of the key caps have broken off and I’m sure this is going to continue. I’m looking for the ...
- 31
-1
votes
1
answer
261
views
Sense HAT stuck on Rainbow test, will not show any blue light in normal RGB
I am new to this, and my Sense HAT is stuck on a rainbow setting and only shows Red and green, instead of Red, Green, and Blue. I have a Raspberry Pi 400, an Acer monitor, and I am using a 40 pin ...
- 11
1
vote
1
answer
183
views
Pi 400 not working with Pi-Supply PoE Switch Hat
The "official" PoE/PoE+ hats will not work with the Pi 400 for a couple of reasons: The main reason being that there is no access to any of PoE pins on the Pi 400 PCB, as there are on the Pi ...
- 2,720
0
votes
0
answers
294
views
Recommended software problems
I've just started exploring the Raspberry Pi 400 and I'm getting an error updating package data when I click Recommended software under preferences...
E:Repository 'http://rasbian.raspberrypi.org/...
0
votes
0
answers
179
views
Bluetooth is not connecting
I'm having trouble connecting my Raspberry Pi 400 to my Bluetooth speaker:
GDBus.Error:org.bluez.Error.AlreadyExists: Already Exists
Any idea on how to resolve this? The same message pops up for my ...
1
vote
0
answers
107
views
Scrolling the Raspberry Pi 400 console
In console mode (without any GUI running), the usual key combination for scrolling is Shift+Page Up/Down. However, on the Raspberry Pi 400, this combination, which should map to Shift+Fn+Up/Down, ...
- 121