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by rpi4.local
Wed Jun 17, 2020 10:35 am
Forum: General discussion
Topic: Question about Raspberry Pi 4 LED design
Replies: 23
Views: 1016

Re: Question about Raspberry Pi 4 LED design

@Burngate

Thank you, that was helpful.
by rpi4.local
Wed Jun 17, 2020 10:30 am
Forum: General discussion
Topic: Question about Raspberry Pi 4 LED design
Replies: 23
Views: 1016

Re: Question about Raspberry Pi 4 LED design

As I said, I wanted to understand the design decision and that's all. Questions are allowed on this forum, right? The hardware design is proprietary, some parts belong to Broadcom. It is NOT open hardware, so don't be surprised when your hardware design questions are rejected, ignored or prohibited...
by rpi4.local
Wed Jun 17, 2020 8:12 am
Forum: General discussion
Topic: Question about Raspberry Pi 4 LED design
Replies: 23
Views: 1016

Re: Question about Raspberry Pi 4 LED design

Now, that's a short one: Why are the activity LEDs acting the way they act? I want to understand the design decision, as I would have done it totally different: I'd have only the green LED(s) light up when the Pi is up and running, having the green LED maybe flash on storage or (heavy) cpu activity...
by rpi4.local
Wed Jun 17, 2020 7:00 am
Forum: General discussion
Topic: Question about Raspberry Pi 4 LED design
Replies: 23
Views: 1016

Question about Raspberry Pi 4 LED design

Now, that's a short one: Why are the activity LEDs acting the way they act? I want to understand the design decision, as I would have done it totally different: I'd have only the green LED(s) light up when the Pi is up and running, having the green LED maybe flash on storage or (heavy) cpu activity....
by rpi4.local
Fri Jun 12, 2020 6:35 pm
Forum: Troubleshooting
Topic: PI4 no signal on new Sony tv
Replies: 18
Views: 539

Re: PI4 no signal on new Sony tv

Have you tried different resolutions, say 720p, 1080p and 4K? Have you tried using different cables? Have you tried another mini HDMI or micro or whatever the Pi 4 uses to full size HDMI? And, for fun and giggles, have you tried using another OS like Ubuntu instead of Pi OS? (https://ubuntu-mate.or...
by rpi4.local
Fri Jun 12, 2020 3:52 pm
Forum: Troubleshooting
Topic: PI4 no signal on new Sony tv
Replies: 18
Views: 539

Re: PI4 no signal on new Sony tv

I just bought a new tv (Sony Bravia KD-55XF9005) which I want to use with my pi 4b. The pi4 worked on my old Sony tv (with some changes to /boot/config.txt), but I get "no signal" on the new tv, no matter what I try. My old pi 3b, works fine on the new tv, so I don't think the tv is the problem. If...
by rpi4.local
Fri Jun 12, 2020 3:46 pm
Forum: Troubleshooting
Topic: DHCP Server unreliable (Dnsmasq)
Replies: 8
Views: 303

Re: DHCP Server unreliable (Dnsmasq)

Thanks very much for your help About the Windows clients: When a client can't resolve Google or whatever domain name, what does a nslookup on said client tell you? Which dns server gets used? Also flush your local dns cache in each Windows client using "ipconfig /flushdns", so cached dns entries ar...
by rpi4.local
Wed Jun 10, 2020 6:47 am
Forum: Troubleshooting
Topic: DHCP Server unreliable (Dnsmasq)
Replies: 8
Views: 303

Re: DHCP Server unreliable (Dnsmasq)

Hi, Thanks for your answer. In the logs above, the android phone was a WiFi device, the others were Ethernet at that point I believe. I have Ethernet cables in the walls, and a TPLink 8 port switch down in the basement which links all of that to the ISP router. With the RPi running dnsmasq and the ...
by rpi4.local
Mon Jun 08, 2020 6:51 am
Forum: General discussion
Topic: Why Google Survey at the end of a fresh installation?
Replies: 13
Views: 563

Re: Why Google Survey at the end of a fresh installation?

FTrevorGowen wrote: ↑
Sun Jun 07, 2020 7:04 pm
 AIUI it's not a "Google Survey" but happens to use a Google form (ie. the responses are anonymous to Google). Have you read the relevant blog post: https://www.raspberrypi.org/blog/latest ... -may-2020/ ?
Trev.
Thanks!
by rpi4.local
Sun Jun 07, 2020 6:49 pm
Forum: General discussion
Topic: Why Google Survey at the end of a fresh installation?
Replies: 13
Views: 563

Why Google Survey at the end of a fresh installation?

A few months ago, when I was installing Raspbian, I was not sent to a Google Survey on the first time starting up the browser after a fresh install of Raspbian. Having reinstalled a Pi 4 recently with Raspberry Pi OS, I'm astonished to see that the browser points me to a Google Survey. What's up wit...
by rpi4.local
Sun Jun 07, 2020 8:31 am
Forum: Troubleshooting
Topic: Raspberry Pi4B Locking up when VNC is enabled
Replies: 9
Views: 304

Re: Raspberry Pi4B Locking up when VNC is enabled

I did not mention it in the text of the problem, but I already tried all 3 of these. The micro SD card is 32GB Sandisk. The power supply and cable are new delivered with the purchase of RPi4B. Obviously it had no effect. That is why I think this is a strange problem.!!!! Ok, so the psu, memory card...
by rpi4.local
Sun Jun 07, 2020 8:11 am
Forum: Troubleshooting
Topic: Raspberry Pi4B Locking up when VNC is enabled
Replies: 9
Views: 304

Re: Raspberry Pi4B Locking up when VNC is enabled

- use a fresh microSD card
- use a different USB-C cable
- use a different 15 watts (5v/3A) power supply

Have you tried that already? Tell us about the outcome, thanks.
by rpi4.local
Sat Jun 06, 2020 7:40 am
Forum: Troubleshooting
Topic: Pi 4 WiFi bit rate dropping exactly every 1 minute
Replies: 4
Views: 248

Re: Pi 4 WiFi bit rate dropping exactly every 1 minute

Have a look at Kismet. It's a tool to passively record all wifi packets. Record packets for a few minutes, then compare the moment when your link speed is dropping to the same moment in Kismet and see, what is actually going on in the air around you. If this is exactly every minute, there has to be ...
by rpi4.local
Fri Jun 05, 2020 4:31 pm
Forum: Troubleshooting
Topic: SSH using hostname unreliable
Replies: 7
Views: 273

Re: SSH using hostname unreliable

There's definitely some hostname weirdness... C:\Users\Dan>ping raspberrypi Pinging raspberrypi.local [fe80::19f2:523f:f5ea:9098%19] with 32 bytes of data: Reply from fe80::19f2:523f:f5ea:9098%19: time=4ms Reply from fe80::19f2:523f:f5ea:9098%19: time=4ms Reply from fe80::19f2:523f:f5ea:9098%19: ti...
by rpi4.local
Fri Jun 05, 2020 7:22 am
Forum: Troubleshooting
Topic: SSH using hostname unreliable
Replies: 7
Views: 273

Re: SSH using hostname unreliable

The whole problem does not make any sense, from my perspective. Connecting via IP or host name is essentially the same thing, as the host name gets resolved once and all traffic happens against the resolved IP address, but not against the host name. What I'm saying is, that the host name is just ini...
by rpi4.local
Thu Jun 04, 2020 9:05 pm
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

"top - 22:59:03 up 1:15, 1 user, load average: 3,06, 3,28, 3,46 Tasks: 152 total, 2 running, 150 sleeping, 0 stopped, 0 zombie %Cpu(s): 51,6 us, 9,7 sy, 0,0 ni, 35,2 id, 1,7 wa, 0,0 hi, 1,8 si, 0,0 st MiB Mem : 1887,9 total, 276,4 free, 1363,0 used, 248,5 buff/cache MiB Swap: 100,0 total, 30,5 free,...
by rpi4.local
Thu Jun 04, 2020 7:36 pm
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

Result #1: Default Chromium streaming Youtube for 4 hours. At the start of streaming: MiB Mem : 1887,9 total, 826,6 free , 350,9 used , 710,4 buff/cache After four hours: MiB Mem : 1887,9 total, 378,2 free , 605,3 used , 904,4 buff/cache Conclusion: No memory leak/overflow "no memory leak"? It look...
by rpi4.local
Thu Jun 04, 2020 3:24 pm
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

I'll do the other tests but this might take a while, as I only have one Pi 4 for testing, each test setup takes at least 4 hours and I have to run each test sequentially, so might be a day or two for reproducible results. Will keep you posted. To speed up your tests, consider adding a RAM monitor t...
by rpi4.local
Thu Jun 04, 2020 1:24 pm
Forum: Troubleshooting
Topic: IP address of the raspberrypi is not visible
Replies: 5
Views: 212

Re: IP address of the raspberrypi is not visible

Hello. I am using RaspberryPi 3B model on a project on ECG. However, I connected the RaspberryPi to my laptop with an ethernet cable and by scanning the IP address using, angry IP scanner, and pasting the IP address on the putty to login to my pi. But, suddenly out of the blue, the RaspberryPi got ...
by rpi4.local
Thu Jun 04, 2020 1:12 pm
Forum: Troubleshooting
Topic: Pi4 USB ports stop working suddenly, maybe USB SSD power issue?
Replies: 9
Views: 419

Re: Pi4 USB ports stop working suddenly, maybe USB SSD power issue?

" there should still be at least 900 mA available for the SSD" Might not be enough. Your SSD is rated at 3.3 volts 1.7 amps, which is a maximum power consumption of 5.61 watts. Voltage conversion inside your external m.2 case adds additional power requirements, as no voltage conversion happens with ...
by rpi4.local
Thu Jun 04, 2020 1:01 pm
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

Great, thanks very much for this testing! (And we use that SpaceX stream as well - lots of space fans here at Pi!) Do people exist who don't feel love for SpaceX? :D I'll do the other tests but this might take a while, as I only have one Pi 4 for testing, each test setup takes at least 4 hours and ...
by rpi4.local
Thu Jun 04, 2020 11:39 am
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

Initial memory usage after reboot and without open apps, just displaying desktop: top - 13:24:37 up 2 min, 1 user, load average: 0,59, 0,44, 0,18 Tasks: 149 total, 1 running, 148 sleeping, 0 stopped, 0 zombie %Cpu(s): 0,9 us, 0,2 sy, 0,0 ni, 98,8 id, 0,0 wa, 0,0 hi, 0,0 si, 0,0 st MiB Mem : 1887,9 t...
by rpi4.local
Thu Jun 04, 2020 11:21 am
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

OK, so we need to be able to reproduce this without needing access to things we don't necessarily have (e.g. Disney+) Do you have any examples that don't require a subscription service to replicate? I will try to replicate the issue with: a) subscription free service: Youtube b) subscription free s...
by rpi4.local
Thu Jun 04, 2020 9:46 am
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Re: Video streaming: Memory overflow in Chromium after some hours

When did you last do a sudp apt update sudo apt full-upgrade There was a bug fix for video freezes at the beginning of this week, Tuesday I think. However, I'm not convinced that it fixes what you are seeing, but worth a go. I got a cronjob running, updates every morning at four and reboots itself ...
by rpi4.local
Thu Jun 04, 2020 8:58 am
Forum: Troubleshooting
Topic: Video streaming: Memory overflow in Chromium after some hours
Replies: 12
Views: 431

Video streaming: Memory overflow in Chromium after some hours

tl;dr Chromium eats the whole ram of a 2 GB Pi 4 while playing online streaming video in one single window (no other Chromium windows, just one) after a few hours. Before the system becomes unresponsive, streaming from Netflix or Disney+ works totally flawless. Setup: -Pi 4 2 GB -Chromium with DRM ...

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