full image - Repost: 2024 Feb 26 Stickied -FAQ- & -HELPDESK- thread - Boot problems? Power supply problems? Display problems? Networking problems? Need ideas? Get help with these and other questions! (from Reddit.com, 2024 Feb 26 Stickied -FAQ- & -HELPDESK- thread - Boot problems? Power supply problems? Display problems? Networking problems? Need ideas? Get help with these and other questions!)
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Welcome to the r/raspberry_pi Helpdesk and Frequently Asked Questions!Link to last week's threadHaving 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 here, 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 overviewQ: 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. 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. 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. 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 having a hard time finding a place to purchase a Raspberry Pi for an affordable price. Where's the secret place to buy one without paying more than MSRP?A: https://ift.tt/coaWEQg 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 runningYou're trying to ssh to the wrong hostYou're specifying the wrong usernameYou're typing in the wrong passwordQ: I'm trying to install packages with pip but I keep getting error: externally-managed-environmentA: 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-packagessudo rm a specific file as detailed in the stack overflow answerQ: 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 problemsQ: 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 from disks/SSDs/LAN/internet so slow?A: If you have a Pi 4 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: I only have one outlet and I need to plug in several devices, what do I do?A: They make things called power strips aka multi-tap extensions.Q: The red and green LEDs are on/off/blinking or the screen is just black or blank or saying no signal, what do I do?A: Start hereQ: 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: Try one of these numerous solutionsQ: Can I use this screen that came from ____ ?A: NoQ: 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 workingA. 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, type vncserver -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.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/RetroPieThe Official Raspberry Pi ForumsAsking 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.
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