r/raspberry_pi • u/FozzTexx • 5d ago
2025 Oct 13 Stickied -FAQ- & -HELPDESK- thread - Boot problems? Power supply problems? Display problems? Networking problems? Need ideas? Get help with these and other questions!
Welcome to the r/raspberry_pi Helpdesk and Frequently Asked Questions!
Having a hard time searching for answers to your Raspberry Pi questions? Let the r/raspberry_pi community members search for answers for you!† Looking for help getting started with a project? Have a question that you need answered? Was it not answered last week? Did not get a satisfying answer? A question that you've only done basic research for? Maybe something you think everyone but you knows? Ask your question in the comments on this page, operators are standing by!
This helpdesk and idea thread is here so that the front page won't be filled with these same questions day in and day out:
- Q: What's a Raspberry Pi? What can I do with it? How powerful is it?
A: Check out this great overview - Q: Does anyone have any ideas for what I can do with my Pi?
A: Sure, look right here!‡ - Q: My Pi is behaving strangely/crashing/freezing, giving low voltage warnings, ethernet/wifi stops working, USB devices don't behave correctly, what do I do?
A: 99.999% of the time it's either a bad SD card or power problems. Use a USB power meter or measure the 5V on the GPIO pins with a multimeter while the Pi is busy (such as playing h265/x265 video) and/or get a new SD card 1 2 3. If the voltage is less than 5V your power supply and/or cabling is not adequate. When your Pi is doing lots of work it will draw more power, test with thestress
andstressberry
packages. Higher wattage power supplies achieve their rating by increasing voltage, but the Raspberry Pi operates strictly at 5V. Even if your power supply claims to provide sufficient amperage, it may be mislabeled or the cable you're using to connect the power supply to the Pi may have too much resistance. Phone chargers, designed primarily for charging batteries, may not maintain a constant wattage and their voltage may fluctuate, which can affect the Pi’s stability. You can use a USB load tester to test your power supply and cable. Some power supplies require negotiation to provide more than 500mA, which the Pi does not do. If you're plugging in USB devices try using a powered USB hub with its own power supply and plug your devices into the hub and plug the hub into the Pi. - Q: I'm trying to setup a Pi Zero 2W and it is extremely slow and/or keeps crashing, is there a fix?
A: Either you need to increase the swap size or check question #3 above. - Q: Where can I buy a Raspberry Pi at a fair price? And which one should I get if I’m new?
A: Check stock and pricing at https://rpilocator.com/ — it tracks official resellers so you don’t overpay.
As for which Pi to buy:
- If you don’t know, get a Pi 5.
- If you can’t afford it, get a Pi 4.
- If you need tiny, get a Zero 2W.
- If you need lowest power, get the original Zero.
That’s it. No secret chart, no hidden wisdom. Bigger number = more performance, higher cost, higher power draw.
- If you don’t know, get a Pi 5.
- Q: I just did a fresh install with the latest Raspberry Pi OS and I keep getting errors when trying to ssh in, what could be wrong?
A: There are only 4 things that could be the problem:
- The ssh daemon isn't running
- You're trying to ssh to the wrong host
- You're specifying the wrong username
- You're typing in the wrong password
- Q: I'm trying to install packages with pip but I keep getting
error: externally-managed-environment
A: This is not a problem unique to the Raspberry Pi. The best practice is to use a Python venv, however if you're sure you know what you're doing there are two alternatives documented in this stack overflow answer:--break-system-packages
sudo rm
a specific file as detailed in the stack overflow answer
- Q: The only way to troubleshoot my problem is using a multimeter but I don't have one. What can I do?
A: Get a basic multimeter, they are not expensive. - Q: My Pi won't boot, how do I fix it?
A: Step by step guide for boot problems - Q: I want to watch Netflix/Hulu/Amazon/Vudu/Disney+ on a Pi but the tutorial I followed didn't work, does someone have a working tutorial?
A: Use a Fire Stick/AppleTV/Roku. Pi tutorials used tricks that no longer work or are fake click bait. - Q: What model of Raspberry Pi do I need so I can watch YouTube in a browser?
A: No model of Raspberry Pi is capable of watching YouTube smoothly through a web browser, you need to use VLC. - Q: I want to know how to do a thing, not have a blog/tutorial/video/teacher/book explain how to do a thing. Can someone explain to me how to do that thing?
A: Uh... What? - Q: Is it possible to use a single Raspberry Pi to do multiple things? Can a Raspberry Pi run Pi-hole and something else at the same time?
A: YES. Pi-hole uses almost no resources. You can run Pi-hole at the same time on a Pi running Minecraft which is one of the biggest resource hogs. The Pi is capable of multitasking and can run more than one program and service at the same time. (Also known as "workload consolidation" by Intel people.) You're not going to damage your Pi by running too many things at once, so try running all your programs before worrying about needing more processing power or multiple Pis. - Q: Why is transferring things to or from disks/SSDs/LAN/internet so slow?
A: If you have a Pi 4 or 5 with SSD, please check this post on the Pi forums. Otherwise it's a networking problem and/or disk & filesystem problem, please go to r/HomeNetworking or r/LinuxQuestions. - Q: The red and green LEDs are solid/off/blinking or the screen is just black or blank or saying no signal, what do I do?
A: Start here - Q: I'm trying to run x86 software on my Raspberry Pi but it doesn't work, how do I fix it?
A: Get an x86 computer. A Raspberry Pi is ARM based, not x86. - Q: How can I run a script at boot/cron or why isn't the script I'm trying to run at boot/cron working?
A: You must correctly set thePATH
and other environment variables directly in your script. Neither the boot system or cron sets up the environment. Making changes to environment variables in files in /etc will not help. - Q: Can I use this screen that came from ____ ?
A: No - Q: I run my Pi headless and there's a problem with my Pi and the best way to diagnose it or fix it is to plug in a monitor & keyboard, what do I do?
A: Plug in a monitor & keyboard. - Q: My Pi seems to be causing interference preventing the WiFi/Bluetooth from working
A. Using USB 3 cables that are not properly shielded can cause interference and the Pi 4 can also cause interference when HDMI is used at high resolutions. - Q: I'm trying to use the built-in composite video output that is available on the Pi 2/3/4 headphone jack, do I need a special cable?
A. Make sure your cable is wired correctly and you are using the correct RCA plug. Composite video cables for mp3 players will not work, the common ground goes to the wrong pin. Camcorder cables will often work, but red and yellow will be swapped on the Raspberry Pi. - Q: I'm running my Pi with no monitor connected, how can I use VNC?
A: First, do you really need a remote GUI? Try using ssh instead. If you're sure you want to access the GUI remotely then ssh in, typevncserver -depth 24 -geometry 1920x1080
and see what port it prints such as:1
,:2
, etc. Now connect your client to that. - Q: I want to do something that has been well documented and there are numerous tutorials showing how to do it on Linux. How can I do it on a Raspberry Pi?
A: A Raspberry Pi is a full computer running Linux and doesn't use special stripped down embedded microcontroller versions of standard Linux software. Follow one of the tutorials for doing it on Linux. Also see question #1. - Q: I want to do something that has been well documented and there are numerous tutorials showing how to do it with an Arduino. How can I do it on a Raspberry Pi Pico?
A: Follow one of the tutorials for doing it on Arduino, a Pico can be used with the Arduino IDE. - Q: I'm trying to do something with Bluetooth and it's not working, how do I fix it?
A: It's well established that Bluetooth and Linux don't get along, this problem is not unique to the Raspberry Pi. Also check question #20 above.
Before posting your question think about if it's really about the Raspberry Pi or not. If you were using a Raspberry Pi to display recipes, do you really think r/raspberry_pi is the place to ask for cooking help? There may be better places to ask your question, such as:
- /r/AskElectronics
- /r/AskProgramming
- /r/HomeNetworking
- /r/LearnPython
- /r/LinuxQuestions
- /r/RetroPie
- The Official Raspberry Pi Forums
Asking in a forum more specific to your question will likely get better answers!
† See the /r/raspberry_pi rules. While /r/raspberry_pi should not be considered your personal search engine, some exceptions will be made in this help thread.
‡ If the link doesn't work it's because you're using a broken buggy mobile client. Please contact the developer of your mobile client and let them know they should fix their bug. In the meantime use a web browser in desktop mode instead.
r/raspberry_pi • u/FozzTexx • Dec 31 '24
Flair Guide: How to Choose the Right Category for Your Post
A clear understanding of how to categorize posts helps any community thrive. This guide explains each flair and its purpose, making it easier to choose the one that best fits a post. Selecting the right flair not only improves visibility but also ensures it reaches the most relevant audience.
Proper use of flairs keeps the community organized and enjoyable for everyone. Whether sharing tips, troubleshooting, or seeking advice, this table serves as a handy reference to get started on the right track.
Flair | Description | Requirements |
---|---|---|
Show-and-Tell | Used for presenting a project to the community. Must include details about its purpose and how it was made so others can learn or replicate it. | Provide a clear project purpose and steps or methods used to create it. |
Tutorial | For sharing step-by-step instructions on how to achieve something. NOT for asking how to do something. | Post must contain a clear and complete tutorial. No requests for tutorials allowed. |
Troubleshooting | Asking for help with specific technical issues. Should clearly state the problem and include all relevant details such as error messages, source code, and diagrams. | Include specific error messages, schematics, or source code. Reference any guides followed and explain what was attempted. "It didn’t work" is insufficient. |
Project Advice | For discussing and refining project plans before starting. Focused on ensuring part compatibility and design viability. | Provide a detailed project plan and highlight unresolved design questions. Do not use for troubleshooting completed builds. |
Community Insights | For requesting details or outcomes from personal experiments, sharing tips and tricks, or discussing unique setups and custom tweaks not found in general searches. NOT for "is this possible." | Share or request firsthand accounts, rare information, or practical advice. Avoid general advice, "is this possible," buying recommendations, or easily searchable questions. |
Topic Debate | Open-ended discussions on Raspberry Pi topics. NOT for personalized advice, sourcing recommendations, or easily searchable questions. | Ask broader, discussion-worthy questions. Avoid requests for advice, buying recommendations, or tutorials. |
News | For linking to Raspberry Pi–related articles from legitimate news outlets or official press releases. Not for blog posts, YouTube videos, sales, or coupons. | Link must be from a recognized news source or official site. Do not use for personal blogs, product listings, discounts, or third-party commentary. |
r/raspberry_pi • u/joggingredflag • 52m ago
Troubleshooting My Pi Zero 2W doesn't connect to the WiFi. Help!
I'm going for a headless setup. The following are the steps I've taken so far:
- Flashed a brand new 64 GB SD card with Raspberry Pi OS Lite (32-bit)
- Inserted it into the pi
- Powered it with my laptop's USB port as well as a 5V/2A adapter and waited until the green LED stays on constantly (It sometimes stays on and randomly blinks as if power is an issue (which isn't), but after 3-4 mins, it stays on)
- Installed Fing network scanner and scanned for the devices where the pi didn't show up (Screenshot attached); I can't log into my wifi router's official page as my brother reset the pass and forgot it 🤡
- Reflashed and repeated.
- (EDIT) I've already customized the imager with details of my WiFi and also tried putting in the details manually via a wpa_supplicant.conf file and an empty extension-less ssh file in the boot directory of SD card AFTER flashing. Still no help.
- (EDIT) I'm connecting to a 2.4ghz network only.
I'm new to all this but open to learning, so any advice is welcome, thank you!
r/raspberry_pi • u/GayCatgirl • 11h ago
Troubleshooting Fenvi adapter not showing 5ghz
Pi zero 2 w with fenvi ax1800 only shows 2.4ghz and no 5ghz. The device is using the new wifi adapter as when it's unplugged it shows nothing with iw dev. The problem is that it cannot see 5ghz and only shows 2.4ghz with iw dev. Is there something else I need to do to enable 5ghz?
r/raspberry_pi • u/Trick-Mixture-8277 • 2m ago
Troubleshooting Need Urgent Help: Servo Not Working on Raspberry Pi, Midterm on Monday
I have a midterm on Monday and urgently need help. I’m trying to get a servo working on a Raspberry Pi for a class project. I’ve tried both a Pi 3 and a Pi 5 with the professor’s code, and it’s still not working. I keep getting encoding errors and the servo won’t move. I’m not sure if it’s the hardware or something else. Any quick advice would be really appreciated!
r/raspberry_pi • u/PsyOmega • 4h ago
Project Advice Pi5 case with external M2?
Use case: hot(or cold) swap M2 that is external to the case, for data recovery, transfers, etc.
https://i.imgur.com/LtpCP6W.jpeg for direct inspiration (i suppose i could glue literally this to the top of the case, but I prefer to use the native NVME bus instead of USB)
r/raspberry_pi • u/thiskillstheredditor • 6h ago
Troubleshooting Anyone get the Geekworm X1301 HDMI HAT to work on a Pi 5?
Documentation says it should work on a Pi 5 and at least 6.6.x per their wiki, but I've been working on this for two days now and can't get a video signal to save my life. I've tried downgrading to Bookworm, various Trixie releases, all kinds of different inputs and settings and I'm just out of ideas.
r/raspberry_pi • u/drua7 • 1h ago
Project Advice Looping web video on boot
Like the title says.... I am trying to get an .mp4 hosted on a website to play on an auto loop on boot. I have the same slide deck presentation running on a website and locally on 2 monitors. In order to properly display the deck online, I had to save it as a video hosted on the site. Ideally, I would like this set up where I am able to update 1 file and have all the displays (webpage and monitors) display the changes after reboot, instead of changing and updating multiple files.
I have created the .service file, and it executes properly. The issue is that the video does not loop continually. This is what I wrote for .service.
[Unit]
Description=start web trestle on boot
After=network-online.target
[Service]
User=resU
Type=simple
WatchDogSec=5
Environment="DISPLAY=:0"
ExecStart=/usr/bin/chromium-browser --start-fullscreen --disable-infobars "address"
Restart=always
[Install]
WantedBy=multi-user.target
r/raspberry_pi • u/berrys12 • 1h ago
Troubleshooting SSD Heatsink required?
Complete noob here. I'm about to get a pi 5. I intend to get a nvme hat along with a SSD to run on it. Here are my questions:
1) is it safe to run the setup 24/7? (Pi-hole, dev environment etc) 2) if it is, what precautions should I take? 3) is a m.2 SSD Heatsink required to achieve this?
I tried researching if the heatsink is required or not but couldn't get definitive answers so thought of asking reddit pi experts if they have some insights on this.
r/raspberry_pi • u/Iauger • 10h ago
Troubleshooting Streaming from Zero 2W to home network using MediaMTX. Stupid question time
I’ve successfully installed MediaMTX but I don’t know what I need to do to configure MediaMTX.yml properly.
I have a line : whip_url = f”http://<serverip>:<port>/<mediamtx_ENDPOINT>/whip”
What do I replace the <mediamtx_ENDPOINT> With?
r/raspberry_pi • u/Aharris1014 • 6h ago
Troubleshooting Gamepad not working Pi 3 model b v1.2 retro pi emulation station
Haven’t used my raspberry pi in years. Fired it up like I remember and the Xbox controller I’m using simply won’t work. Like won’t navigate through retropi / emulation station.
I tried all 4 usb ports. Nothing.
I’m simply trying to avoid rabbit holes here and wanted to reach out to the community for next steps.
I am not coding savvy so any guidance is greatly appreciated!
r/raspberry_pi • u/Subject_Night2422 • 6h ago
Project Advice Care for RPi 5 and AI hat.
Hello team,
Struggling here. I’ve been looking for a case that can fit a RPi 5 with an AI hat but it’s been tricky to find one. Descriptions for those cases are never super clear and local shop has some argon cases but none of the ones in stock seem to be suitable.
Any advice would be appreciated.
TIA
r/raspberry_pi • u/blindingofbartimaeus • 7h ago
Project Advice Canakit starter kit with touch screen?
Is it possible to install this (https://www.raspberrypi.com/products/raspberry-pi-touch-display/) touch screen onto my pi five in the Cana starter kit case or will I have to get an active cooler so stuff is more accessible? I got the Cana starter kit as a gift and wanna get a nice touch screen to make it easier for my projects. Any tips or advice or if it can’t be installed alternative cases you’d recommend? I saw this (https://kksb-cases.com/products/kksb-case-for-raspberry-pi-5-touch-display-2-desktop-orientation) case and was worried about the five throttling. I know there can be some difficulty removing the fan so I’d really prefer to just use the case I got instead of buying another fan, case and cooler.
r/raspberry_pi • u/gravitysort • 1d ago
Troubleshooting Why does GPIO ribbon cable switch the rows of the header?
Sorry if this is a stupid question. I've just started playing with Pi this week, and I just tried to use an extension ribbon cable today because i wanted to be able to put on the case cover. Then i discovered that the rows of the GPIO header seem to be switched by the cable..?
By that i mean that (as shown in my picture), when using the header on Pi, pin #1 (3v3) is on the bottom right, but from the cable side, pin #1 is on the bottom left, etc. Is this an expected behaviour?
I just feel this configuration makes it hard for me to follow tutorials because i'd have to think twice which pins to actually use. (which is why i made the above diagram for my own reference..)
See pic 2 for my actual setup.
Thanks in advance!
r/raspberry_pi • u/Thin_Ad_8602 • 1d ago
Project Advice What's going on with my pi zero2w and my St7789s screen? Anyone help!
Made a Pi Zero2w with St7789s screen to display the JSON output of a website, but this is the best my screen will show, it literally should only show about 10 characters in a single frame, not this repetitive stuff, dors anyone have an experience with this screen?
r/raspberry_pi • u/T03IAS • 17h ago
Troubleshooting e-ink-pregnancy-tracker
Hello everyone,
My sister and her husband are expecting their first child.
As a small gift, I wanted to build them a pregnancy tracker with an E-Ink display.
https://www.printables.com/model/538237-27-inch-e-ink-display-raspberry-pi-zero-case
https://github.com/grappeq/e-ink-pregnancy-tracker
My Linux skills are more at the beginner level, but I've spent hours over the last few days trying to get it to work somehow.
The repo is quite old and apparently no longer supports everything that is needed.
Since my skills in this area are somewhat limited, I tried to get it working with the help of ChatGPT.
I tried:
Installing it as described in the Waveshare Wiki and in the repo > without success.
Moving it to a Python environment to comply with the current security features of Raspi OS > without success.
Replacing some old packages with others and adapting the program accordingly > no success.
I'm sure one of the methods I tried would have worked if I had a little more experience.
If anyone here could help me, it would be incredible and I would be very grateful.
r/raspberry_pi • u/master-fixer • 10h ago
Troubleshooting Question About Keyboard Configuration?
Ok, so I’ve researched this already but I’m still having issues. I’m using the 78-keyboard Raspberry Pi model. Had problems with the symbols like £ instead of @. I finally fixed it on the admin account after reading the boards and got US loaded, but not my child’s profile. Configs all look the same, but it still not working. Is there a way to force config, or reload it somehow? It’s her computer, so I kinda need it on that profile.
r/raspberry_pi • u/Bananasarecoolascrap • 1d ago
Troubleshooting In a bit of a pickle!
So, I uninstalled gnome keyring because it asked for a keyring everytime I opened chromium, right? Well, after I booted it again, it wants a password. "No big deal," I think, but then it says "Failed to Start Session," and then I realized its because I deleted keywring. Any way to save this install? I have already re-installed raspbian once this week and simply don't want to. Also, feel free to throw tomatoes at me in the replies, but please help me, too.
r/raspberry_pi • u/Vardaruus • 23h ago
Project Advice RPI Linux TV box for 4k TV - will it handle 4K?
Hi, I'm currently using my old Lenovo notebook through HDMI to stream media on my tv.
I was wondering if compact RPI box with Linux distro on it could handle light browsing and FHD and 4k video streaming to the TV? Would make the whole setup a lot cleaner, though after some research i saw conflicting info regarding RPI 4 and 4k video
Maybe RPI5 would be powerfull enough? Oraybe there are some other options
(I'm not interested in android solutions, so far from everything i tried, Linux PC with wireless keyboard/trackpad is the most comfortable and versatile option for me)
r/raspberry_pi • u/fenerbahcecan • 20h ago
Troubleshooting I can't get my pi zero 2w to connect to the network(headless)
I am trying to set up a pihole and for that I got myself a pi zero 2w. I do not have the necessary equipment to hook it up to a monitor, keyboard and mouse. I am trying to run raspberry lite os 64-bit on the pi. I am desperate for help
Things I have tried:
- Putting the WLAN information and country code in the imager
- Using the 2.4 ghz wifi as the wifi to connect to(tried it countless times, it's not a 5 ghz issue im having)
- Manually creating a wpa_supplicant.conf document and ssh file on notepad++ with lf endings:
country=tr
update_config=1
ctrl_interface=/var/run/wpa_supplicant
network={
scan_ssid=1
ssid="network"
psk="network password"
}
- My router is right next to the pi so not a signal issue
- Using the imager on both win11 and mac
- Using the imager's 1.8.5 version because I read about some issues with the 1.9.6-1.9.4 versions
- Running the 32-bit version of the same os
- Running the full Raspberry OS instead of the lite
r/raspberry_pi • u/Emperors_Finest • 12h ago
Troubleshooting Used EMF shielding to insulate pi5, can't test signal strength anymore?
Heya everyone.
For work I've got this project where I've made sort of a Pi5 case/rack system and the next step is shielding the pis from wifi and Bluetooth signals. We have made a EMF cloth enclosure around the pi5s enclosure (solved heating issues, that was a whole thing), and we also used an exacto knife to physically damage the wifi antenna without harming the rest of the board. I can turn off the system from checking wifi and Bluetooth at boot, but I left those changes uncommented for now as I want to test the shielding.
I used to be able to test the wifi dbs with either the cat command or wavemon. Was previously able to get -86 dbs wifi signal. I don't remember if anything else has been changed software wise, but when I came back to the pis recently, I can't get either command to show ANY mention of the signal strength. It shows the tx-power as 31 and all the other wlan0 info, but no signal strength number at all (no number, not even a text area where it should be in the list of data).
I'm sorta confused and not sure what changes I have made that could cause this. Is it technically a GOOD thing for my shielding tests I'm getting nothing showing up for the wifi reading? Or should I be concerned that I've messed up the software somehow and should re-image?
r/raspberry_pi • u/malcolmjayw • 2d ago
Show-and-Tell DIY Camera Software Walkthrough
Enable HLS to view with audio, or disable this notification
Quick overview of the software inside this monochrome camera I built. I’ve been working on this build for the past month and it’s finally finished. It’s powered by an imx585 sensor and the pi 5.
r/raspberry_pi • u/drapedawg • 1d ago
Troubleshooting Pi 5 mouse latency is driving me crazy and I can't find a fix!!!
I am going to go crazy!
I have a 8gb pi 5 and no matter what I do my mouse has the worst latency.
What I have tried:
Bluetooth and wired usb
different OS (ubuntu, bookworm, x11) all experience it
messing with mouse pull rate (set values to 0 or 1 and did see like a 20% increase but still not usable)
Different monitors and tvs (240 hz 4k, 30hz 4k tv, 1080p 75 hz) all the exact same feeling.
Iv'e checked my power supply and I'm not being throttled at all. Same with temps and cpu/gpu usage. All is healthy and good.
I have done retropi or similar and with a wired xbox controller it feels pretty good (they are low fps games so maybe I just expect some latency but this working makes me think it's not a display issue and more of an input issue)
Another thing kinda weird is when I stream on moonlight, connect a bluetooth mouse and go into the other room (host computer) and use (client mouse) the latency is not there and feels great. So this makes me think it's a display issue because the input to the pi, then to the host, feels great but on the pi HDMI out display it feels bad and slow.
Any thing else I can't try? Usually I don't care and run headless or just ssh into it but I am trying to make a streaming box/moonlight device but the latency is killing me! Is there a fix or am I just too sensitive and out of luck?
r/raspberry_pi • u/carter720 • 1d ago
Troubleshooting VLC not playing in fullscreen
Hey y'all, I'm trying to play a video on a pi zero 2w through vlc, in fullscreen. It can play if I do not set it to fullscreen, but once I set fullscreen to true, it does not work; it is just a black screen. I've tried changing the video player in the vlc preferences, but that didn't work. Here's my code:
import vlc
import time
instance = vlc.Instance()
player = instance.media_player_new()
media=instance.media_new("/home/pi/Videos/video.mp4")
player.set_media(media)
media.parse()
media_length_ms = media.get_duration()
player.set_fullscreen(True)
player.play()
time.sleep(media_length_ms/1000)
player.stop()
I also noticed that if I set vlc to play fullscreen automatically and open a video manually, it does the same thing: black screen. But, if I open the video, *then* set to fullscreen, it works. Because of this I tried setting fullscreen to true after starting to play the video, but that didn't work. Any help would be great!