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LoLiGrUB ASBL • Consulter le sujet - [résolu] raspberry pi + clavier USB

[résolu] raspberry pi + clavier USB

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[résolu] raspberry pi + clavier USB

Message par francois » 04 Jan 2013 10:09

je rencontre un problème régulier avec le boitier Raspberry Pi par rapport au fonctionnement du clavier USB, j'utilise Raspbmc ou Raspbian mais le soucis reste le même lorsque je connecte un clavier USB (j'en ai testé 2) ça ne fonctionne pas à tous les coups voir ça fonctionne au début (premier boot) mais pas ensuite.

Avez-vous des soucis similaires ?
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Re: raspberry pi + clavier USB

Message par bipbip » 04 Jan 2013 11:32

Je n'en ai pas pour essayer mais j'ai trouvé ça : http://elinux.org/RPi_VerifiedPeripherals#USB_Keyboards
Ca peut toujours aider :)

Bip
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Re: raspberry pi + clavier USB

Message par francois » 10 Jan 2013 22:33

En lisant ton lien ça m'a fait tilter sur un point et là je viens de faire différents test ... en résumé toutes les prises d'alimentations USB (comme celles pour charger un GSM ou autres) ne sont pas toutes de la même puissance et visiblement lorsque c'est légèrement trop faible alors il faut soit en prendre une autre soit passer via un hub usb alimenté ...

moi mes alimentations USB sont de 5V ou 5.15V
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Re: [résolu] raspberry pi + clavier USB

Message par tbruyere » 10 Jan 2013 23:05

Bonjour,

Les alimentations que j'ai utilisé pour mes test sont en output 5VDC - 1000mA
Je n'ai pas eu de problème avec les claviers USB mais j'ai utiliser des claviers simple (pas multimédia avec LED supplémentaire)

Si tu as besoin j'ai encore des alimentation USB de stock.
Thierry Bruyere
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Re: [résolu] raspberry pi + clavier USB

Message par didiervillers » 10 Jan 2013 23:53

Les alimentations USB et leur isolation réciproque me semblent assez mystérieuses !

Figurez-vous que j'ai réussi à booter un Raspberry Pi par sa simple connexion à un hub USB alimenté (5V, 3.5 A, 10 ports USB) !!
Oui, vous lisez bien, je n'ai pas eu besoin de connecter une alim par l'entrée micr-USB normalement prévue à cet effet.
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Re: [résolu] raspberry pi + clavier USB

Message par tbruyere » 11 Jan 2013 10:04

Thierry Bruyere
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Re: [résolu] raspberry pi + clavier USB

Message par tbruyere » 11 Jan 2013 10:17

Ou alors on passe au panneau solaire ;)

Thierry Bruyere
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