Raspberry Pi Forums

hibol

Hi,
I don't know if there is something "cleaner" to do, but I managed to solve this problem by rewriting the SD card.
So I still don't know what caused this error, and why I have never seen it again.

hibol

Non, non, je veux dire que cela fonctionne (aléatoirement) avec un certain réseau wifi, et que 20 km plus loin, ça ne fonctionnne absolument pas avec un autre réseau qui pourtant est configuré exactement de la même manière (oui, j'ai pris soin de modifier le SSID et la clé WAP dans mon fichier de co...

hibol

What type of connection are you using ?
I made it without problem using a wired connection.

hibol

Oui, j'ai vérifié, il est présent de base dans l'OS raspbian. Et ce dongle est dans la liste des périphériques qui sont censés fonctionner "out of the box" (sans avoir rien besoin de faire d'autre que le sortir de la boîte) sur le rpi. Le plus grand mystère pour moi est qu'il marche presque dans le ...

hibol

J'ai aussi pas mal de problèmes niveau dongle / hub / etc. Après avoir lu quelques topics en anglais, et testé d'autre matériel sans beaucoup de succès, j'en conclus qu'une des choses à faire est d'être patient et d'attendre des mises à jour... En effet, énormément de gens (dont des modérateurs), pa...

hibol

Salut, J'ai la même clé usb wifi (DWA-131) et j'utilise raspbian comme OS. Mon fichier de configuration est pareil aussi. auto wlan0 iface wlan0 inet dhcp wpa-ssid "monssid" wpa-psk "monmdp" Et j'ai aussi de sérieux problèmes pour me connecter. J'ai un réseau auquel j'arrive à me connecter de temps ...

hibol

It should be ok, but beware of no name and cheap devices.
For this price, I wonder what quality this power supply is.

hibol

I hope too :) That's what I install updates each time I am able to connect to a network, and this event is random :lol: It would be nice if you can tell when you hear about a major update which might help my Pi to work ! Or is there a website which describes every raspbian updates (I mean in a compr...

hibol

The results are the same if I use a powered USB hub or not.
That's my main problem. And whatever configuration I try, I am not able to have a stable wifi connection.
That's why I started to wonder about power supply, voltage and so one.

hibol

Ok. I heard there are a lot of problems with USB devices, and I am also experiencing them (like the system becoming slower when using low speed and high speed USB devices at the same time). So I think it doesn't help me to make my wifi dongle work well... I hope that future updates will improve this...

hibol

Ok, thank you

So it is normal that I don't have 5V between TP1 and TP2, and it doesn't mean my power supply is bad, is it true ?

hibol

Thank you for your advice, mahjongg.
The resistance of F3 is 0.3 Ohm

With a keyboard and a mouse, the voltage on F3 is 85.8mV.
If I plug HDMI too, the voltage is 89.9V (but sometimes reaches 100mV)
Then if I measure the resistance of F3 again I get 0.2 Ohm.

hibol

So I tried with another voltmeter, and I got 4.89V. Results are similar wwith the two PSUs...
Still not so good.
It is the same if I use a powered USB hub or no hub at all...
And I have no other power supply to try

hibol

The cable I use is a Samsung one (provided with a smartphone), and the 4.79V is measured between TP1 and TP2.
I will tell you tonight the results with another voltmeter.
It's good to hear that Apple's PSUs are good as I only have those.

hibol

Normally when you boot your Pi, it asks you to login and you have to type "pi" for the username ans "raspberry" for the password. If it is correct, it will then let you type whatever command you like (like "startx" to start the GUI for example). If it is wrong, it will just tell you to login again. ...

hibol

Thank you for the quick answers. I tried two different Apple power supplies, one rated 5V 1A, and the other 5V 2.1A. Actually, my Pi is working, I just have problems with my wifi network, and I don't know if it could be better with a higher voltage. As my voltmeter is quite old, I will try the same ...

hibol

Hello,
I measured voltage I have on my Pi, because I wasn't sure if it was enough.
The result was about 4.79V.
Then I asked myself what was the loss in the USB / micro USB cable (80 cm), and I found it is 60mV.

Is it normal or is the cable bad ?

Thanks for the support

hibol

And what about the command :

Code: Select all

sudo init 0

?
Can it lead to some problem, or is it ok to use it ?

hibol

Hi,
I am trying like you to get connected through a dongle, and I am in exactly the same situation.
Has anyone been able to use network-manager-gnome properly ?

hibol

Hi JeepGuy, Thanks for the explanation. You can also modify the file with the editor Nano, which is a little easier to use than Vi I think. The command line stays the same except that you replace vi by nano. I have exactly the same configuration file as you, and it worked yesterday with a certain ne...

hibol

Ok, thank you for the information.
Then I will wait, because I an mot the one able to solve this problem

hibol

Actually I just found out that my problem was not my hub itself, but the fact that it doesn't support low-speed and high-speed peripherals to be plugged together. So when I only plug my dongle, everything is perfect, but if I add my mouse, LXDE becomes slow again. It means that for the moment I can'...

hibol

Hi,
I found this topic by chance, and it appears that I have the same problem with my hub too.
Mine is a USB2 CNMEMORY Zinc 4-Port, and is neither on the list of working peripherals or the non-working...
I guess I have to buy a new one which is verified...

hibol

Hello,
You can extend the partition with GParted with the computer you used to format the SD card, too.
Personally, I have extended mine at first boot with the raspi-config and it worked.

hibol

Hello,
Has anyone succeed with the DWA-131 dongle ?
If yes, it would be great ton post the solution you used with some details.

(Which driver has been downloaded, how it has been installed, and what modifications has been made to the configurations files.)
Thank you !

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