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by elkberry
Fri May 12, 2017 2:08 pm
Forum: Networking and servers
Topic: [SOLVED]IPv6 forwarding traffic is lost w/o ICMPv6 notice
Replies: 2
Views: 645

Re: IPv6 forwarding: enabled, traffic is lost w/o ICMPv6 not

kernel is 4.9.24-v7+ #993 I've just noticed while trying to hunt down the cause that my RPi actually does forward the ICMPv6 pings, something I missed before in my wireshark traces (shame on me). So this actually is a problem in my router hierarchy, as I'm noticing seemingly circling ICMPv6 packets ...
by elkberry
Fri May 12, 2017 1:28 pm
Forum: Networking and servers
Topic: [SOLVED]IPv6 forwarding traffic is lost w/o ICMPv6 notice
Replies: 2
Views: 645

[SOLVED]IPv6 forwarding traffic is lost w/o ICMPv6 notice

(Notice to mods: I've asked in troubleshooting, but got no replies, so I hope that asking in networking might be better, without falling to cross-posting; in any case, this is my last attempt here...) Setup: Raspberry Pi 3B with recent Jessie, updated as of today. Upstream IPv6 "Enterprise" network ...
by elkberry
Thu May 11, 2017 9:53 am
Forum: Troubleshooting
Topic: IPv6 routing not working, ip6tables setup...?
Replies: 0
Views: 482

IPv6 routing not working, ip6tables setup...?

I've a Raspberry Pi 3B with recent Raspbian Jessie. It has eth1 as its upstream interface, eth0 as its downstream interface. I want to forward all IPv6 traffic between eth1 and eth0. dhcpcd is configured to request a prefix from upstream via eth1, which it successfully gets and assigns to eth0. radv...
by elkberry
Mon May 08, 2017 5:22 pm
Forum: Troubleshooting
Topic: Pi 0 W OTG Ethernet only working after unplug, then replug?
Replies: 9
Views: 1166

Re: Pi 0 W OTG Ethernet only working after unplug, then repl

Why an USB 3.0 Ethernet adaptor? Doesn't it have higher power consumption, even if in USB 2.0 mode? And does it properly work on an USB 2.0 port of the Raspberry Pis?
by elkberry
Mon May 08, 2017 1:34 pm
Forum: Troubleshooting
Topic: Pi 0 W OTG Ethernet only working after unplug, then replug?
Replies: 9
Views: 1166

Re: Pi 0 W OTG Ethernet only working after unplug, then repl

fruitoftheloom wrote:Regards the Davicom DM9601 USB ethernet adaptor, they seem to be poor quality and many issues have been reported over the years........
Yeah, add me to the crowd bitten by Davicom.
by elkberry
Mon May 08, 2017 9:12 am
Forum: Troubleshooting
Topic: Pi 0 W OTG Ethernet only working after unplug, then replug?
Replies: 9
Views: 1166

Re: Pi 0 W OTG Ethernet only working after unplug, then repl

Sorry for not answering earlier; I've now testing on a Raspberry Pi 3 Model B instead of a Pi Zero W. So, lsusb gives for my USB 2.0 Ethernet adaptor: ID 0a46:1269 Davicom Semiconductor, Inc. Seems that the initialization of this adaptor is a little picky: sometimes after my Pi 3B booted, it works; ...
by elkberry
Mon May 08, 2017 7:05 am
Forum: Official Foundation Display
Topic: single touch registers as double click!??
Replies: 1
Views: 803

Re: single touch registers as double click!??

Having worked with several official 7" touch LCDs bought from well-known channels (RS Electronics, Conrad) I never have seen the issue you describe (so far). This looks as if you got a faulty unit, which the seller should replace.
by elkberry
Tue May 02, 2017 4:57 pm
Forum: Troubleshooting
Topic: Pi 0 W OTG Ethernet only working after unplug, then replug?
Replies: 9
Views: 1166

Pi 0 W OTG Ethernet only working after unplug, then replug?

Hardware: I'm using a Raspberry Pi Zero W OTG cable ... correctly working ;) 10/100MBit Ethernet USB 2.0 Adapter Renkforce brand, power consumption max 166mA according to data sheet Power supply, tried each with same result: official 2.5A power supply 1.0A 5.1V USB 5100mAh power bank Microsoft 1A Su...
by elkberry
Wed Apr 26, 2017 9:03 pm
Forum: Advanced users
Topic: Auto poweroff when power bank low?
Replies: 6
Views: 1826

Re: Auto poweroff when power bank low?

In true RPi Foundation style, we should probably add a RPi cam module, and then run some cv app that analyzes the pictures of the power bar status LEDs, shutting itself down when the last LED starts blinking... :mrgreen:
by elkberry
Sun Apr 16, 2017 4:29 pm
Forum: Troubleshooting
Topic: Raspberry Pi Zero won't shutdown
Replies: 12
Views: 1219

Re: Raspberry Pi Zero won't shutdown

Powering from an USB power bank ... may work, may not work. I've tried several ones, and most of them are barely at 5V for 0.1A, some give 5.1V even at 1A; use an USB doctor to check. As for you Pi Zero restarting after shutdown: that depends, again, on your particular power bank. Some of mine corre...
by elkberry
Sat Apr 08, 2017 9:15 am
Forum: Troubleshooting
Topic: Rainbow screen
Replies: 9
Views: 1914

Re: Rainbow screen

Could the mSD card have become loose or not seated properly in its socket anymore? Because you are seeing the rainbow screen and that, to the best of my knowledge, indicates that there is some life left as the GPU initializes but cannot load the kernel to boot. I've equipped three RPi 3s with CPU he...
by elkberry
Fri Apr 07, 2017 7:26 pm
Forum: Raspbian
Topic: SSH on Raspberry Pi Zero W
Replies: 30
Views: 9296

Re: SSH on Raspberry Pi Zero W

That's odd. I have three Pi Zero Ws here, all three work beautifully with ssh over Wireless LAN. Raspbian Jessie. On Android, I'm using JuiceSSH (very nice ssh terminal client with toolbar for missing keys). On Windows, I'm using the ssh that comes with the git for Windows installation; should be th...
by elkberry
Thu Apr 06, 2017 4:52 pm
Forum: Other projects
Topic: Official touch Screen Compatibility
Replies: 5
Views: 3758

Re: Official touch Screen Compatibility

There seem to be 3rd party LCDs with touch that use HDMI. As for details, I'm afraid, you need to do some research for yourself, a there are so many different ones on the market, some only for limited periods.
by elkberry
Tue Apr 04, 2017 5:42 pm
Forum: Troubleshooting
Topic: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: faile
Replies: 6
Views: 1034

Re: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: fa

Recent raspbian update now fixes the RPi0W's that previously failed to work correctly in USB Ethernet gadget mode. With these updates I can now successfully ping and ssh into the problematic RPi0W by connecting it with a microB<->A cable to my Linux and Windows boxes. So I stand corrected that it is...
by elkberry
Tue Apr 04, 2017 5:18 pm
Forum: Official Foundation Display
Topic: Vertical lines only
Replies: 11
Views: 7177

Re: Vertical lines only

First step is to connect an HDMI monitor at the same time as the display. The Pi will only drive one display at a time, so therefore if the HDMI monitor stays blank the basic link between the Pi and controller board is working and you need to look at the connection from display board to the display...
by elkberry
Tue Apr 04, 2017 4:33 pm
Forum: Troubleshooting
Topic: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: faile
Replies: 6
Views: 1034

Re: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: fa

Got my replacement RPi0W, which unfortunately is broken too: USB gadget mode does not work either! Cross-checked the same mSD in the working RPi0W: there, it works correctly. I've only now noticed that the good one also shows the error message in dmesg, so the presence of this error doesn't seem to...
by elkberry
Mon Apr 03, 2017 6:40 pm
Forum: Troubleshooting
Topic: eth0 not working anymore
Replies: 40
Views: 8088

Re: eth0 not working anymore

eth0 stats (see above) show a lot of errors and overruns. Either the cable is defective, the opposite port is borked, or the Raspberry Pi got beyond its best-before.
by elkberry
Mon Apr 03, 2017 6:36 pm
Forum: Troubleshooting
Topic: Raspi making DHCP requests to its own hotspot
Replies: 4
Views: 546

Re: Raspi making DHCP requests to its own hotspot

Thanks for the quick reply. I added "denyinterfaces wlan0" to the end of /etc/dhcp/dhcpd.conf but it seems to have stopped access to the hotspot. (I did think that dhcpd was part of isc-dhcp-server). /etc/dhcpd.conf does not exist. This from syslog: Apr 3 15:47:53 raspi2ag dhcpcd[441]: wlan0: addin...
by elkberry
Sun Apr 02, 2017 6:41 pm
Forum: Other projects
Topic: Official touch Screen Compatibility
Replies: 5
Views: 3758

Re: Official touch Screen Compatibility

It's not, as the Pi Zero (W) lacks the SPI for the official Touch LCD. It only comes with the other SPI for connecting the camera. To the best of my knowledge the firmware doesn't support remapping the SPIs.
by elkberry
Fri Mar 31, 2017 4:30 pm
Forum: Troubleshooting
Topic: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: faile
Replies: 6
Views: 1034

Re: [SOLVED] Pi0W: gadget mode: dwc2_hsotg_enqueue_setup: fa

No, if you read my post then you will notice that I tried the same physical mSD in two Pi Zero Ws. No, it's not a kernel issue at this time, there's no patch available. And no, I never wrote about a single USB ethernet adaptor attached using a OTG cable, but I mentioned USB Ether gadget mode. But th...
by elkberry
Thu Mar 30, 2017 8:57 pm
Forum: Troubleshooting
Topic: Pi Zero W as unintended 5GHz jammer?
Replies: 2
Views: 1474

Re: Pi Zero W as unintended 5GHz jammer?

Maybe someone want to try a Pi Zero W next to an Apple/LG 4K monitor...? 8-) But as I'm writing this it only now occurs to me that's maybe something the FCC tests don't cover, as it may be caused by I2C interference from a Scroll pHAT HD. I've now stopped the script that outputs nice stuff to the pH...
by elkberry
Thu Mar 30, 2017 7:28 pm
Forum: Troubleshooting
Topic: Pi Zero W as unintended 5GHz jammer?
Replies: 2
Views: 1474

Pi Zero W as unintended 5GHz jammer?

Now this is strange: I have a Raspberry Pi Zero W connected to WLAN access points, Fritz!Boxes in my case. While the Pi Zero W is switched on, my Microsoft Surface Pro 3 tablet reproducable cannot successfully communicate in the 5GHz band with these access points anymore. The SF3 shows full WLAN str...
by elkberry
Thu Mar 30, 2017 7:19 pm
Forum: Networking and servers
Topic: How to display the MAC / IP addresses
Replies: 8
Views: 1437

Re: How to display the MAC / IP addresses

Bah, /64 subnets are soo ... standard.
by elkberry
Thu Mar 30, 2017 5:28 am
Forum: Networking and servers
Topic: How to display the MAC / IP addresses
Replies: 8
Views: 1437

Re: How to display the MAC / IP addresses

what's wrong with ifconfig :) Nothing wrong with it - it is a nice command and I use it frequently. Although, some people say that ifconfig is obsoleted by 'ip'. But it doesn't answer OP's question, which some may see as a problem. I think the command the OP seeks is "arp", which dumps out a list o...
by elkberry
Fri Mar 24, 2017 6:27 am
Forum: Troubleshooting
Topic: Broken USB on Pi Zero W
Replies: 9
Views: 2657

Re: Broken USB on Pi Zero W

Power separately, even (or in particular) if using a PC USB port. Quality of voltage varies widely with USB, as you'll see using a USB charge doctor or similar. Use an official Raspberry power supply for reference to check whether the Pi is working correctly. Thid way, you can cross-check other powe...

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