Troubleshooting • Re: New rpi5 + new official powersupply: "not...
Any ideas how to debug or fix this?You could keep asking your retailer for a replacement PSU and/or Pi 5 under warranty until you receive a pair which does reliably allow 5V @ 5A to be negotiated at...
View ArticleInterfacing (DSI, CSI, I2C, etc.) • Connecting Waveshare Display(s)
Hi all,I fear this is gonna be another "my Waveshare Display won't connect" tread.I'm currently trying to get the "8 inch DSI LCD (C)" to work on my Raspberry Pi 4 (4GB model).Having seen threads like...
View ArticleBare metal, Assembly language • Re: RPi5 power button
Another possibility to switch off the Raspberry Pi 5 is this call to the PCSI interface, provided by the Trusted Firmware module:Code: asm volatile("movx0, %0\n""smc#0\n":: "r" (0x84000008U)//...
View ArticleCompute Module • Re: CM4 with ST7701 panel driver does not create /dev/dri/cardX
There seem to be a load of random parameters thrown into your overlay, unless you've done severe hacks to the driver.Code: fragment@1 { target-path = "/"; __overlay__ { tplcd: tplcd@0 { compatible =...
View ArticleTroubleshooting • Re: RPI 4b not booting from SD Card.
In the other thread you started you wrote that the red LED is flashing. That is not what you stated in the first post here. Flashing red LED usually means power supply trouble. Are you using official...
View ArticleGeneral • Re: Waveshare UPS-B LiPo Battery
I've bought a couple of these too and found the lipo batteries on Amazon.However, usually they take batteries with a 3.2 - 3.8v output. Whatever regulator they use to get to 4.5v is so noisy that I...
View ArticleClik here to view.
Interfacing (DSI, CSI, I2C, etc.) • DSI screen + 2 x HDMI, is it possible...
I tried to find the answers in the official Pi documentation, on this forum, I asked the people at Pimoroni, and I have tried and failed with an adafruit-screen on the GPIO, but I could not find the...
View ArticlePython • Re: Pyserial / USB Connection / Arduino / Freeze
Update 2/21/20241. I use the threading to see if this can solve the problem.2. As shown in the following code, it does not work.3. Looks like the problem is on the lower layer such as Linux kernel or...
View ArticleOfficial Display • Re: Raspberry Pi 4 with official touchscreen no display...
There is nothing I can see related to the touch panel in the kernel log (just lots of iptables entries), but it only goes back a couple of hours so probably not long enough now.However, this is in the...
View ArticleCamera board • Re: Problem with the external trigger of the GS camera
There are two problems. The first is that the -t 0 option means that the viewfinder will run forever. Instead, try --immediate.The second issue is that automatic gain and white balance controls cannot...
View ArticlePython • No objects found within the specified OU
Hi.I'm trying to collect objects in our Active Directory, but I'm getting the same error all the time no matter what."No objects found within the specified OU."I have tried to change the ou_path, but...
View ArticleCamera board • Picamera2 capture_circular no preview
Why don't l see a preview with this example ?https://github.com/raspberrypi/picamera ... ircular.pyStatistics: Posted by gordon77 — Wed Feb 21, 2024 11:51 am
View ArticleBeginners • Re: No "Signal Desktop" available for ARM64. No...
I ask if there is a workaround? For example non-official client?Statistics: Posted by Marsha — Wed Feb 21, 2024 11:56 am
View ArticleGeneral discussion • Re: Verifying write failed.
Maybe faulty or fake card. Download h2testw (for Windows) and use it to test the card.Statistics: Posted by drgeoff — Wed Feb 21, 2024 11:58 am
View ArticleAdvanced users • Booting RASPI4 / CM4 from external SPI Flash
Hi,is there a chance to boot Raspi4/CM4 with a minimal initramfs (RootFS, Kernel just few MB) from external SPI flash? Just as kind of rescue service.I know interfaces such as USB, PXE, PCIe, SD-CARD,...
View ArticleClik here to view.
Android • Re: [DEV] LineageOS 21 (Android 14) for Raspberry Pi 4 & Pi 5
[/quote]Sorry, you're just plain wrong. You can boot with 1280x720 resolution just fine (or which ever hardware resolution your display reports as supported).Have you tried, like, reading the FAQ?...
View ArticleTroubleshooting • Re: Raspberry Pi Model 4 as USB Storage Device
I have used USB type C cable to connect MACBook to RPi Model 4.Statistics: Posted by Linux_01 — Wed Feb 21, 2024 12:03 pm
View ArticleTroubleshooting • Re: Wayland: Switchind display off and on again is not working
Thanks, I have done it first with my previous settings:Code: pi$pi$ kmsprintConnector 0 (32) HDMI-A-1 (connected) Encoder 0 (31) TMDS Crtc 3 (96) 320x1480@59.98 39.750 320/24/32/56/- 1480/3/10/41/+ 60...
View ArticleBeginners • Re: SPI Question
Yes, unfortunately I already thought that such a circuit would be a challenge. I would like to build a test center for a Hima HIMax safety controller. The HIMax is an uninterruptible safety controller...
View ArticleSDK • Re: Problems with compiling an individual project example.
Good, though I normally use the Pico SDK on a Pi and the command line to build.Statistics: Posted by neilgl — Thu Feb 22, 2024 11:54 am
View Article