Path: csiph.com!v102.xanadu-bbs.net!xanadu-bbs.net!feeder.erje.net!eu.feeder.erje.net!fu-berlin.de!uni-berlin.de!individual.net!not-for-mail From: Peter Chant Newsgroups: comp.os.linux.hardware Subject: Re: Bad combination of scanner and motherboard? Date: Sat, 28 Dec 2013 21:22:50 +0000 Lines: 28 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-Trace: individual.net g3XGKyBpVFIiqptffTofZw1eMIjiXdDoF27vSsnWtMTgr+nrQ= Cancel-Lock: sha1:X2I4OS0gXcvlRfgRb1bEAIz5Ov4= User-Agent: Mozilla/5.0 (X11; Linux i686; rv:17.0) Gecko/20131204 Thunderbird/17.0.11 In-Reply-To: Xref: csiph.com comp.os.linux.hardware:2153 On 12/28/2013 04:47 PM, notbob wrote: > On 2013-12-28, philo wrote: > >> If your USB port is flaky, a powered hub will not help. > > Perhaps you have more than one. My Vaio towers have USB connectors in > the front AND the back. The front one's were wimpy and fell apart > quickly. I now use a hub plugged into the back. I see one advantage > to a hub. Plugging/unplugging USB connectors into a computer's ports > puts a lotta strain on those port sockets. Best to plug in one connector > to the 'puter and let the hub suffer the traffic/abuse, as they are > cheap and replaceable. Apologies to Philo, previous response went to mail and not followup to group. Tried two ports on front and one on the back. No luck with the canon. Powered hub was no help. Yet Epson just worked. Running sane-find-scanner and scanimage as root to ensure permission problems don't thwart me. Perhaps udev is not picking up the scanner - but there are rules for this model. Notice that the relevent entry under /dev/bus/???/??? does not have group lp with the problem scanner. Pete