From mboxrd@z Thu Jan 1 00:00:00 1970 MIME-Version: 1.0 In-Reply-To: References: <199A32F6-9C38-45B8-B191-CAE2B1972408@orthanc.ca> From: Ramakrishnan Muthukrishnan Date: Fri, 28 Feb 2014 20:45:28 +0530 Message-ID: To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [9fans] Raspberry Pi: won't recognize the USB mouse Topicbox-Message-UUID: bf74ab26-ead8-11e9-9d60-3106f5b1d025 On Fri, Feb 28, 2014 at 8:15 PM, Anthony Sorace wrote: > On Feb 27, 2014, at 12:31, Ramakrishnan Muthukrishnan = wrote: > >>> Always use a powered hub with the Pi =E2=80=93 it can't supply bugger a= ll for power out its USB ports. >> >> Thank you Lyndon, Steve and Erik. I will try a powered hub tomorrow >> and also get another keyboard/mouse. > > Based on my own experience with USB weirdness with the Pi, I still suspec= t power issues. How are you powering the Pi itself? Using a 1 amp supply yi= elded problems, regardless of the sort of hub I had, which all went away wh= en I switched to a 2 amp supply. I'm told the second generation of these bo= ards are a bit better on that regard, but I don't have any to test. I have the model B (which is the newer one, I believe). I am currently powering them with a USB cable connected to a MacBook. I will take RPi to work on monday and try powering it from a lab power supply. I don't have a 2A supply here at home at the moment. --=20 Ramakrishnan