STICKY: Using the Troubleshooting Forum

[jamesh]

This forum is for asking questions on getting your Raspberry Pi up and running properly.

Please:

1) Make your subject heading clear with information on what the problem is

e.g. Symptom: HDMI not working when using DVI adapter

2) Please put all information on how to replicate the issue in the main body of the post.

3) Please include which distro/SD card image you are using, and which version of that distro/image

Post edit by Gert:
In general: if you have trouble try as many (safe!) different operating modes as possible. From the total picture it is easier to have an idea what is wrong. (Not like the email I once got which had only the text: "It don't work")

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[reggie]

I'd also like to add something to this if I may, it would also be useful for those that have the necessary kit and ability to post console logs if they have any errors and posting the result to pastebin, then adding the link to your error report.

Over the last few days on the unofficial IRC channel there have been quite a few people coming in looking for help with various issues, not a single one of them has posted anything other than 'I've got XYZ issue'. We've had a few blurry images of a fleeting glimpse of the boot log, from which we're supposed to deduce the exact issue

Of course I do appreciate that not everyone will have the kit or the ability to do this and judging from the discussion on irc channel it's going to take a few tutorials to cover the bases on best practices.

[keithsuddick]

...posting the result to pastebin, then adding the link to your error report.

Can you perhaps explain what that means? I've just tried to include the output from dmesg in a post but the forum would not let me upload it as an attachment and it was too big to go in the post itself.

[reggie]

Pastebin is a website where you can paste long bits of text (code, kernel logs, any random text you like), once you've saved it, you will get a link, you can then post that link in your forum post.

copy the text that you want to put in your post, go to www.pastebin.com, paste the text into the big white box, set any highlighting that you need and any other options in the dropdowns, then click the submit button, in the new page, copy the address from your browsers address bar, go to your forum post, paste in your link and tell people what it's for:

Here is a pastebin of some random text http://pastebin.com/fQKDQKbZ

[clickykbd]

you should also check out the pastebinit CLI utility in the repository. handy stuff. read the man page.

Code: Select all

sudo apt-get install pastebinit
man pastebinit

[reggie]

Thanks Clicky, I wasn't aware of that app. for linux, that's incredibly useful!

[kori]

Good evening! Have an analog TV set with composite video input. My RPi has been tested with a HDMI monitor, working with no problem. Connecting the composite video output to my TV no picture can be detected. Video input is working with any other source: DVD, VHS, Sat receiver. Got no oscilloscope.
Supposing incorrect configuration, setting the config file is modified from default NTSC to PAL: no change.

[jamesh]

Good evening! Have an analog TV set with composite video input. My RPi has been tested with a HDMI monitor, working with no problem. Connecting the composite video output to my TV no picture can be detected. Video input is working with any other source: DVD, VHS, Sat receiver. Got no oscilloscope.
Supposing incorrect configuration, setting the config file is modified from default NTSC to PAL: no change.

Please post a new topic, or do a search -think this has been covered before.

[Jonn]

I noticed a post with 'solved' in the title.
How does one indicate a post has been solved so a moderator can edit the title, like this minor example for the default time: http://www.raspberrypi.org/phpBB3/viewt ... 28&t=17175
We don't just use the report post feature, do we?

Also, someone mentioned above the posting of logs. Newbies (like I am and ever will be...) may find some help on finding and accessing the logs on the SD card *out* of the RaspberryPi in this post mortem 'out-of-body' post: http://www.raspberrypi.org/phpBB3/viewt ... 24&t=13563.

[jamesh]

Report post would work fine. Or PM a mod (which has the same result, but slower)

[wdevauld]

Your troubleshooting forum code of conduct lists that it is only for posting problems. I may on the other hand have a solution that came from following a hunch based on evidence from several other of the 'Pi Locks Up' type threads.

Would it be alright if I posted a thread about my solution? Or should I find someone elses' problem to hang my suggestion off of?

-W

[mahjongg]

Your troubleshooting forum code of conduct lists that it is only for posting problems. I may on the other hand have a solution that came from following a hunch based on evidence from several other of the 'Pi Locks Up' type threads.

Would it be alright if I posted a thread about my solution? Or should I find someone elses' problem to hang my suggestion off of?

-W

you could always post it as a problem you encountered, but found the solution for yourself.

[Liamthe1st]

Well all I can is thanks to not having any prior notification and being used to being able to just unplug and go then reconnect I did not realise the sensitive nature of Pi.

I found a TV with a HDMI input, a keyboard and a 5v phone charger 0.7amps, Too late for my preloaded SD card through. I used an adapter and a long lead before I read the sensitive stuff.
My Pi arrived at Two PM and the preloaded card at 9am both are now in my tool box for a long time to recover.
How about a BIG warning notice. WHAT NOT TO DO ON THE BOX.
To save inexperienced guys like me making this error one invoice for the Pi and one for the preloaded SD card no warnings no instructions
The help on this web site is very good but "Do Not unplug the Card "or "The Power " should be the very first thing before run off and plug it all together.

[jamesh]

Well all I can is thanks to not having any prior notification and being used to being able to just unplug and go then reconnect I did not realise the sensitive nature of Pi.

I found a TV with a HDMI input, a keyboard and a 5v phone charger 0.7amps, Too late for my preloaded SD card through. I used an adapter and a long lead before I read the sensitive stuff.
My Pi arrived at Two PM and the preloaded card at 9am both are now in my tool box for a long time to recover.
How about a BIG warning notice. WHAT NOT TO DO ON THE BOX.
To save inexperienced guys like me making this error one invoice for the Pi and one for the preloaded SD card no warnings no instructions
The help on this web site is very good but "Do Not unplug the Card "or "The Power " should be the very first thing before run off and plug it all together.

Not really sure what you are commenting on, but the Quick Start guide has everything you are talking about here in it. Did you read that? Or just dive in without reading any of the instructions?

[Liamthe1st]

I am 61 ex electronic warfare specialist. Not reading instructions is something that I CAN NOT Do. however my PC is being run by some darker skinned than I and it will not open or down load from the site.
but not only that it mangled my pre loaded Raspbian Card.
But as I do not give up that easy I have to day got it Running and have about 10 apps in the store including Office. How do I get it on then Desk top? I have a HP Air printer which prints from my I Phone and Pad.
Can I get Pi to print to it? My Pi has a wifi dongle and is set up to be controlled by my browser by wifi, or at least I gave downloaded the said app to nod that job. I have two Uno's and one Mega my intention is to join The Arduino Mega to the Pi. Once I get Rid of the Darker Skinned Microsoft imitators from my Lap top. Should be done tomorrow.

[DougieLawson]

To fix your SDCard get a copy of the SD Formatter tool on your Windows system.
Reformat the card with "FORMAT SIZE ADJUSTMENT" set to "ON".
Unzip the NOOBS zip file directly to the card.
Boot that on your RPI and choose Raspbian from the installer menu.
http://www.raspberrypi.org/help/noobs-setup/
has the details and a five minute video (aimed at ten year old kids).

Printing is simple with CUPS.
http://www.howtogeek.com/169679/how-to- ... -computer/

With a HP WiFi printer that will be trivial.

[ubiquity]

Report post would work fine. Or PM a mod (which has the same result, but slower)

Any chance of adding [Solved] to the reporting list?
The current list items clearly don't cover the situation and it feels a bit strange reporting your own topic using the present options.

[rpdom]

Report post would work fine. Or PM a mod (which has the same result, but slower)

Any chance of adding [Solved] to the reporting list?
The current list items clearly don't cover the situation and it feels a bit strange reporting your own topic using the present options.

You can now edit your post and change the subject to [solved].

[Alchemist]

In LX Terminal I type import (by example)
On screen the characters m and p are not separated
The character is a litlle moved to the left. How do I change this?
With regards Piet

[szpisjakcristian]

Hi there,
I have some problems with a device connectivity. That device is a Honeywell 1900 Xenon Area Image Scanner. I don't know why if i connect this scanner to a pc with a linux distribution it's working just fine. When i connect the scanner to the Raspberry Pi board (Model A) i can't get any kind of data from the scanner.
My board is updated, the scanner firmware is updated and i use the latest version of Raspbian.
One mention, the scanner use an 5V usb alimentation.
Any ideas?

Thank you.

post edit by moderator:
you need the (Debian) linux driver, written for intel (X86) based systems, and re-compile it for ARM, and it should work. Note, if there are black box "blobs" of honeywell proprietary code embedded in the X86 driver then that makes this impossible, as this will also be X86 code, which cannot be re-compiled. But good luck! (as you wrote "alimentation" for power supply, perhaps I should say bonne chance )

[rick67]

Hi all
I recently got mi RPi2 and have had trouble booting up. The rainbow screen flashes, code scrolls up the screen, then blank. The rainbow screen appears again and flashes. If I hold the shift key down, it sometimes completes the boot, other times it re-installs raspian. If and when it does boot, the low voltage indicator in the upper right corner is always there and the red power LED on the board flashes only occasionally. All components are brand new out of the box (like the power supply). Even when booting up with only a power supply and a video screen, red LED only flashes occasionally. What should I do to fix this?

[klricks]

Hi all
I recently got mi RPi2 and have had trouble booting up. The rainbow screen flashes, code scrolls up the screen, then blank. The rainbow screen appears again and flashes. If I hold the shift key down, it sometimes completes the boot, other times it re-installs raspian. If and when it does boot, the low voltage indicator in the upper right corner is always there and the red power LED on the board flashes only occasionally. All components are brand new out of the box (like the power supply). Even when booting up with only a power supply and a video screen, red LED only flashes occasionally. What should I do to fix this?

You should have started a new post and not tack onto any random topic.
The red power LED should be lit at all times.
Either the power supply is not sufficient or the micro USB cable power is of poor quality or bad. Too thin and/or too long.

[wh7qq]

I have a complaint or request, depending on your point of view, of posters requesting help and then never coming back to the forum to give feedback as to their success or failure with the advice given. The person helping never gets to know if his advice did the job or not. It would really be helpful to know one way or the other, in fine tuning future responses. If you request and recieve advice, let the person know if it worked or not, and how, if possible.

[danzam]

when I use facebook in my raspberry Pi3 it became blocked what can i do?

[Rango0099]

Having trouble with my initial setup. I downloaded retro pie to umbuntu. I try to add more roms but run out of space. I have tbs of Roms. How do I add them or am i just out of luck with so many?Am I better off starting g fresh dl some rom packs and flashing them to am sd xardvrsthervthan tryi g to pluck them from my external HD andvru. Ing it that way? My reto pie does not have the option to use external storage. Do i need the pi board? Do i need an SD card? I'm confused about all of this. Will the sd card shrink the size of the roms so I can fit them all onto it? Can you please help.