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by morgon
Thu Jan 05, 2017 8:00 pm
Forum: Troubleshooting
Topic: Pi booting only one and then
Replies: 0
Views: 184

Pi booting only one and then

Hi, for quite some time I have a problem with my old model B, so far nobody could help me, so here I try again for the last time: What happens is that sometimes my Pi books ok, every thing works, no problems at all. But most of the time it does not boot, I have only the red LED, not ACT at all. It d...
by morgon
Thu Sep 08, 2016 9:28 pm
Forum: Troubleshooting
Topic: Pi booting only intermittendly - anything else I could try?
Replies: 3
Views: 468

Re: Pi booting only intermittendly - anything else I could t

Firstly I can't try another cable as the hub's uplink cable is fixed and cannot be changed. And I don't quite understand your point. As I wrote currently my Pi does not boot, even though the voltage on board (as measured between TP1 and TP2) is fine. How could this be a power problem or have anythin...
by morgon
Wed Sep 07, 2016 11:13 pm
Forum: Troubleshooting
Topic: Pi booting only intermittendly - anything else I could try?
Replies: 3
Views: 468

Pi booting only intermittendly - anything else I could try?

Hi, my old model B is backpowered via an active hub and exhibits the strange behaviour that most of the time it won't boot (only red led, nothing else happening) but every now and then it may boot just fine. Just today it booted fine and ran for 12 hours, but now it's dead again and am thinking of f...
by morgon
Sat Jun 25, 2016 10:32 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

As I said my SD looks quite ok and I have tried others as well - I would say it's definitely not the SD card. But maybe it's the holder even though I can't see anything wrong and applying pressure did not help. I said "did" because after having been away for two days the dead pi I left is booting ag...
by morgon
Fri Jun 24, 2016 1:01 am
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

@dgordon42: Many thanks for this info. So that settles the polyfuse question. Still wondering what is happening to my Pi (that is again back to NOT booting). @davidcoton: I don't think it's the hub as all peripherals connected to it get power (eg the USB-disk spins up) and the Pi also gets at least ...
by morgon
Wed Jun 22, 2016 11:56 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

Before I forget it again: many thanks for your input. I back power via USB, the micro usb power plug is not used at all. And in the past I had no clear pattern, sometimes I shut the pi down, sometimes I would simply pull the plug (in rare cases I had to fix the sd), but I have never seen this kind o...
by morgon
Wed Jun 22, 2016 10:33 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

My pi is booting again, so here is the output of cpuinfo: processor : 0 model name : ARMv6-compatible processor rev 7 (v6l) Features : swp half thumb fastmult vfp edsp java tls CPU implementer : 0x41 CPU architecture: 7 CPU variant : 0x0 CPU part : 0xb76 CPU revision : 7 Hardware : BCM2708 Revision ...
by morgon
Wed Jun 22, 2016 3:50 am
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

So what harm can unplugging do apart from possible filesystem corruption? In what way would a properly shutdown pi be safer from possible induction peaks or whatever? I have pulled the plug on my pi many many times (out of laziness mostly) thinking that I would be able to deal with issues on the sdc...
by morgon
Tue Jun 21, 2016 7:22 pm
Forum: Troubleshooting
Topic: not connected to internet: wget, ping, apt-get don't work
Replies: 7
Views: 921

Re: not connected to internet: wget, ping, apt-get don't wor

Ok, so what happens is that your Pi is set up ok and tries to forward traffic for the internet to your laptop. But your laptop is not acting as a router and so the packets that your pi send get lost. It is not a problem on the Pi, rather it is your laptop that needs to be configured to act as a rout...
by morgon
Tue Jun 21, 2016 7:12 pm
Forum: Troubleshooting
Topic: not connected to internet: wget, ping, apt-get don't work
Replies: 7
Views: 921

Re: not connected to internet: wget, ping, apt-get don't wor

So your laptop is your gateway i.e. 192.168.137.1 is your laptop and the pi is connected to your laptop via an ethernet-cable? Then what your laptop must be configured to do is to masquerade the traffic from and to the pi - your laptop must act as router. If you run linux on your laptop you can do t...
by morgon
Tue Jun 21, 2016 6:37 pm
Forum: Troubleshooting
Topic: not connected to internet: wget, ping, apt-get don't work
Replies: 7
Views: 921

Re: not connected to internet: wget, ping, apt-get don't wor

According to your ifconfig-output the only network interface that is up is eth0 - that is ethernet (lo is just loopback). It is also assigned the ip 192.168.137.99 and you are able to ping 192.168.137.1 which is your default gateway. So it seems your Pi is configured ok to access the local network, ...
by morgon
Tue Jun 21, 2016 6:11 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

As I said I don't really understand anything about electronics, so I cannot make much use of the schematics. And at the moment my Pi is again not booting, so I cannot get the revision number via cpuinfo. Any other way to obtain these? I can access the file-systems on the SD-card on my PC should that...
by morgon
Tue Jun 21, 2016 2:37 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

The sd card looks ok, I've already tried applying some pressure and also tried two other cards. I don't believe it's that. As for the power supply, how would you explain that it worked for 2 years then doesn't then does again? Does it happen that the power supplies of active hubs are somewhat unstab...
by morgon
Tue Jun 21, 2016 12:00 am
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

I have tried to use my phone's charger but that does not change anything. The strange thing is that the Pi was working fine for 2 years, I did not to anything out of the ordinary to it (nothing connected to the GPIOS) when suddenly it appears to be dead, then lives again, then dies again. I now let ...
by morgon
Mon Jun 20, 2016 10:54 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

Sorry, my mistake. It's an old Model B. I have used this setup for more than two years and never had any problems with it. Apart from finding an explanation for my Pi's resurrection (for which I would be simply curious and hope that it will resurrect itself again) I would like to understand if in a ...
by morgon
Mon Jun 20, 2016 8:01 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

Re: could this be a polyfuse issue?

It's a Pi 2, model B.
by morgon
Mon Jun 20, 2016 7:32 pm
Forum: Troubleshooting
Topic: could this be a polyfuse issue?
Replies: 23
Views: 2552

could this be a polyfuse issue?

Hi, my Pi currently behaves in a very strange way... Some day ago it would not boot any more (only solid red led, tried different power supply, SD-cards etc - nothing). Then after some days it suddenly worked again, and now unfortunately I am back to the non-booting. I now wonder if this death-and-r...
by morgon
Wed Jun 15, 2016 10:57 pm
Forum: Troubleshooting
Topic: dead Pi?
Replies: 1
Views: 360

dead Pi?

Hi, my Pi has been running fine for more than a year when suddenly it would not boot anymore, All I get is the red LED, no indication at all of the green one. Unfortunately I only have one SD-card that I booted the Pi from previously, but I found two old 2GB card on which I put an old raspbian-image...
by morgon
Mon Jun 13, 2016 6:20 pm
Forum: Troubleshooting
Topic: boot (probably SD) problems
Replies: 2
Views: 391

Re: boot (probably SD) problems

I've seen this page and but does not help... The Pi behaves identical whether or not a card is present (red led on, no blinking) so I assume the problem is with the SD-card (that as I said worked for many months). I have tried applying some pressure to the card (in the hope that it could be come mec...
by morgon
Mon Jun 13, 2016 5:08 pm
Forum: Troubleshooting
Topic: boot (probably SD) problems
Replies: 2
Views: 391

boot (probably SD) problems

Hi, all of a sudden I seem to have a problem with my SD card that was running fine for months. The problem is that the Pi no longer boots, on power-up all that happens is that the red led lights up and that's it. From what I know this means that the Pi cannot read the card. The card itself works in ...
by morgon
Sat May 21, 2016 2:05 am
Forum: Graphics, sound and multimedia
Topic: tvheadend with analogue tv?
Replies: 4
Views: 1236

Re: tvheadend with analogue tv?

Any results?
by morgon
Sat May 21, 2016 1:52 am
Forum: Troubleshooting
Topic: lost hdmi output
Replies: 1
Views: 328

lost hdmi output

Hi, I am at a loss at the moment... For about a year or so I have run my pi headless, but before that I hooked it up successfully with my monitor. Now I tried to connect it to my monitor again - and I don't get any output anymore. The Pi as such works, I can ssh into it, start a even vnc-session wit...
by morgon
Tue Apr 05, 2016 9:38 pm
Forum: Raspbian
Topic: determine USB port
Replies: 3
Views: 2836

Re: determine USB port

Figured it out. The information I am looking for can be found in the directory-names under /sys/bus/usb/devices. There e.g. a directory like "1-1.2.2" alway refers to a particular physical port. If this directory is missing, nothing is plugged into that slot, otherwise inside are files containing e....
by morgon
Tue Apr 05, 2016 6:22 pm
Forum: Networking and servers
Topic: accessing webserver via ssh
Replies: 1
Views: 377

Re: accessing webserver via ssh

Seems to be quite easy acually...

ssh -L 8008:localhost:8008 [email protected]<address of pi>

Now when you access localhost:8008 you are tunneled to the webserver running on port 8008 on the pi.

So opting for ssh when configuring weaved seems to be the best option as this allows you access to everything.
by morgon
Tue Apr 05, 2016 6:01 pm
Forum: Networking and servers
Topic: accessing webserver via ssh
Replies: 1
Views: 377

accessing webserver via ssh

Hi, I am currently trying out the free offerring of the weaved-service and when you install the daemon you make a choice of either making the ssh port or the webserver port accessible. I have for now opted for ssh, so now I can ssh into my pi from the internet. Now on the Pi there is also a webserve...

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