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by Aardappeltaart
Thu Dec 05, 2019 6:18 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

jdb wrote:
Thu Dec 05, 2019 1:56 pm
Remove the file /boot/.firmware_revision.

:D
by Aardappeltaart
Thu Dec 05, 2019 9:44 am
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

pi@pi4-4zig:~ $ vcgencmd version Nov 29 2019 18:44:32 Copyright (c) 2012 Broadcom version aabb1fb5c19d80db268aeccd67b9f4e0f3d48a2a (clean) (release) (start) [/code] So I'll see how that goes. Tried that firmware: HDMI audio was dropped in some files. TV was working fine with sound, so the KODI GUI....
by Aardappeltaart
Tue Dec 03, 2019 11:07 am
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

The RPF people are aware of the issue that some HDMI video modes generate frequencies that can interfere with WiFi, and, according to this post they are attempting to solve the problem with software: Friday's rpi-update firmware release includes a patch to choose an HDMI mode for 2560x1440@60Hz wit...
by Aardappeltaart
Mon Dec 02, 2019 6:48 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

Most people out there I've spoken think it is a Raspberry Pi 4 problem and not a faulty HDMI cable. That's probably because most people have been led to believe that expensive and so-called better HDMI cables are not necessary, are a money-taking scam; cheap cable is just fine, and in most cases it...
by Aardappeltaart
Mon Dec 02, 2019 8:51 am
Forum: Troubleshooting
Topic: Pi4, TV-hat and WIFI AP compatiblilty
Replies: 4
Views: 589

Re: Pi4, TV-hat and WIFI AP compatiblilty

That said other monitor solved the problem.

Strange, but that seems to be the case:
https://www.raspberrypi.org/forums/view ... 5#p1573994
by Aardappeltaart
Sat Nov 30, 2019 4:39 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

Reproduced problem testing 2 cables and 2 monitors. Problem more complex than thought, because not only cable but also the monitor is causing issues. Also, counter intuitive HDM1 is worse than HDMI0 on ONE monitor. SETUP RPI4 2GB Official PSU Cable (1) micro HDMI 1.4 Cable (2) micro HDMI 2.0 WIFI AP...
by Aardappeltaart
Fri Nov 29, 2019 3:14 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

As for how big it is, we've only had a few reports in, and since the particular combinations are unusual, it's not huge. 2560x1440 reduced blanking appears to be the culprit mode, combine that with a low quality cable and 2.4Ggig wireless and you *might* see a problem. I had it with TV-Hat and 1920...
by Aardappeltaart
Fri Nov 29, 2019 2:01 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

"Yes, there can be interference, just use high quality cables" is what we have always said, I believe. Maybe not in those exact words, but certainly that is what we advise. I did some testing on this, and could not replicate any issues, because I never hit the exact combination that can cause probl...
by Aardappeltaart
Fri Nov 29, 2019 1:11 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

The problem seems to be very very specific. You need to be using specific HDMI modes, specific Wifi channels and using bad cables. We are still looking in to mitigation to cope with these bad cables. Not easy though. Sorting out RF interference is a difficult thing, way out of my knowledge base. Mi...
by Aardappeltaart
Fri Nov 29, 2019 12:52 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

A bit surprised to see this in daily email from The Register today. Us too, yet another storm in a teacup, amplified by click bait websites. I'm not surprised, the problem is real. https://www.raspberrypi.org/forums/viewtopic.php?f=28&t=255870 I guess there are quite a few badly shielded HMDI conne...
by Aardappeltaart
Mon Nov 25, 2019 5:43 pm
Forum: Troubleshooting
Topic: Pi4, TV-hat and WIFI AP compatiblilty
Replies: 4
Views: 589

Re: Pi4, TV-hat and WIFI AP compatiblilty

HDMI interference, other cable solved the problems.

https://www.raspberrypi.org/forums/view ... 0#p1571440
by Aardappeltaart
Mon Nov 25, 2019 5:36 pm
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

Also came to the conclusion that the HDMI cable/interference is the cause here.

Changed the cable, and it solved my problems. It the meantime I also tweaked some minor things, but I don't see the problem anymore after choosing a lower channel number.
by Aardappeltaart
Mon Nov 18, 2019 1:11 pm
Forum: HATs and other add-ons
Topic: Dim green led of TV-HAT
Replies: 3
Views: 226

Re: Dim green led of TV-HAT

Thx, but `software wise`

:)
I'm already using tape, was looking for a smarter solution (not necessarily easier)
by Aardappeltaart
Mon Nov 18, 2019 10:40 am
Forum: Troubleshooting
Topic: Recording dvb-t sound on a Raspberry Pi 4
Replies: 6
Views: 206

Re: Recording dvb-t sound on a Raspberry Pi 4

Consider using KODI.
https://www.raspberrypi.org/forums/view ... p?t=251645

I'm quite happy with the recordings made with KODI//TV-Headend.

AFAICS Kodi is also the only player automatically switching refresh-rate/resolution for different content.
by Aardappeltaart
Mon Nov 18, 2019 10:34 am
Forum: Troubleshooting
Topic: RaspberryPi 4 No output on 4K LG TV (WebOS)
Replies: 2
Views: 113

Re: RaspberryPi 4 No output on 4K LG TV (WebOS)

Check this:

- Do you use a 2.0 HDMI cable?
- Check your LG for something like a ULTRA DEEP HD COLOR setting. It should be switched on for 4K60p, at least on my LG.
- Does the LG work with 4K30p?
- Does the LG work with 4K60p on another computer?
by Aardappeltaart
Mon Nov 18, 2019 10:26 am
Forum: Troubleshooting
Topic: Pi 4 4GB- Wifi not working when resolution is set too high
Replies: 63
Views: 4429

Re: Pi 4 4GB- Wifi not working when resolution is set too high

Probably related issue:
RPI4 set up as accesspoint is dropping devices when playing something on KODI.
https://www.raspberrypi.org/forums/view ... 8&t=255870

Did help when i choose higher WIFI channels.

Do you see differences choosing higher 2.4Ghz WIFI channels?
by Aardappeltaart
Tue Nov 12, 2019 8:24 am
Forum: HATs and other add-ons
Topic: Dim green led of TV-HAT
Replies: 3
Views: 226

Dim green led of TV-HAT

The green LED of the TV-HAT is very bright, is it possible to dim the led, or even turn it off software wise.

It also stays on, even if the RPI is shutdown, annoying the cat at night.
by Aardappeltaart
Tue Nov 05, 2019 3:21 pm
Forum: Troubleshooting
Topic: Pi4, TV-hat and WIFI AP compatiblilty
Replies: 4
Views: 589

Re: Pi4, TV-hat and WIFI AP compatiblilty

Official power supply arrived, but halas no improvements. So we can rule out insufficient power. It's a nice supply though. Problem stays: something playing in Kodi, AP is dropping al connections. But doesn't matter if it's DVB-TV or some h264 content from local disk. Problem solved it when I force ...
by Aardappeltaart
Sun Nov 03, 2019 12:23 pm
Forum: Troubleshooting
Topic: Pi4, TV-hat and WIFI AP compatiblilty
Replies: 4
Views: 589

Re: Pi4, TV-hat and WIFI AP compatiblilty

Ordered an official PSU, could sould the problem.

Still anyone any ideas about TV-hat and WIFI interference (on a PI4), or a slightly patched second TV-Hat batch?
by Aardappeltaart
Sun Nov 03, 2019 11:42 am
Forum: Troubleshooting
Topic: [kworker/3:2-events_freezable] and unresponsive RPI3+
Replies: 1
Views: 240

Re: [kworker/3:2-events_freezable] and unresponsive RPI3+

AFAICS caused by the low quality of the Ultra Fit USB drive: apparently the size has a price.
by Aardappeltaart
Sat Nov 02, 2019 7:02 pm
Forum: Troubleshooting
Topic: Pi4, TV-hat and WIFI AP compatiblilty
Replies: 4
Views: 589

Pi4, TV-hat and WIFI AP compatiblilty

I'm using the Pi4 for watching DVB-TV and also as a wireless AP. Both work great separate, but not together. When I'm watching TV, the Pi is losing all connected devices on the AP. iw dev wlan0 station dump | grep St gives nothing I tried a ribbon extension cable for the TV-Hat, but that doesn't hel...
by Aardappeltaart
Thu Oct 17, 2019 8:51 am
Forum: Troubleshooting
Topic: [kworker/3:2-events_freezable] and unresponsive RPI3+
Replies: 1
Views: 240

[kworker/3:2-events_freezable] and unresponsive RPI3+

Trying to debug my RPI3+ with Buster and a native HomeAssistant (Python virtual environment) install that's getting unresponsive after some hours. Running Buster booting from USB SanDisk Ultra Fit 3.1 Flash Drive. Sometimes even `top`, or `less /var/log/syslog` isn't working over ssh. What does `[kw...
by Aardappeltaart
Tue Sep 17, 2019 11:24 am
Forum: Nederlands
Topic: DVB T2 zenders ontvangen (TV HAT)
Replies: 17
Views: 7381

Re: DVB T2 zenders ontvangen (TV HAT)

Vandaag is weer een wijziging doorgevoerd in de frequenties voor de regio Amsterdam, Wormer, Haarlem en Hilversum. https://www.kpn.com/service/televisie/digitenne-kanaalomzetting.htm Dus TVHeadend opnieuw configureren: In Amsterdam zijn de free to air zenders nu te vinden in de mux 578 (vh 618). Om ...
by Aardappeltaart
Fri Jul 19, 2019 8:40 am
Forum: Advanced users
Topic: Is it possible to connect a domain to a raspberry pi without exposing my PI address?
Replies: 7
Views: 653

Re: Is it possible to connect a domain to a raspberry pi without exposing my PI address?

You can run Tor on a pi. https://2019.www.torproject.org/docs/tor-onion-service.html.en @Aardappeltaart Please explain how that has any relevance to the OP's question. Quoting info from the link Tor allows clients and relays to offer onion services. That is, you can offer a web server, SSH server, ...
by Aardappeltaart
Wed Jul 17, 2019 5:47 pm
Forum: Nederlands
Topic: DVB T2 zenders ontvangen (TV HAT)
Replies: 17
Views: 7381

Re: DVB T2 zenders ontvangen (TV HAT)

Hier staat Utrecht pas per 1-10-2019 https://www.kpn.com/service/televisie/digitenne-kanaalomzetting.htm PDF Planning Frequentiewijziging https://www.kpn.com/w3/file?uuid=141214bc-ac20-459f-b5f7-20732700ba80&owner=8de86c61-bdc8-4848-872e-e5b380e682fc&contentid=34150 https://nl.wikipedia.org/wiki/UHF...

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