Re: USB keyboard required replugging--how to avoid?
- Original Message - From: Gary Dale garyd...@torfree.net To: debian-user@lists.debian.org Cc: Sent: Monday, March 2, 2015 11:05 AM Subject: Re: USB keyboard required replugging--how to avoid? On 02/03/15 08:22 AM, Dr. Jennifer Nussbaum wrote: Hi, i have a USB keyboard that, every week or three, will drop off, and require replugging to work again. It is immediately recognized and works fine after I do this This was the case on a previous Wheezy system, and it still happens on a Jessie box I built. The problem is that the new box has hard-to-access USB ports, so in order to replug the keyboard, I have to remove a panel, so its not just a quick step. I realize that there's probably no easy solution--if the keyboard doesn't respond, i cant enter a command to re-recognize it--but are there any things i can try that would help prevent this from happening in the first place? In order to fix a problem, you first need to identify what is causing it. Is there any log entry(s) related to the keyboard? Sorry for the delay, i needed to wait for it to happen again. No, there are no useful log messages. When the keyboard drops off, there is nothing in the logs to indicate this; when i re-plug it, I get a usual list of messages with nothing indicating that theres a problem. At the (obvious in retrospect) suggestion of someone elsethread, I did just get a 6 extention cable, thus making it trivial to re-plug it when this happens. I'd rather it just works in the first place, but this will have to do. (The keyboard is a custom build and cannot be replaced.) Thanks. Jen -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/919484888.3965226.1425644800082.javamail.ya...@mail.yahoo.com
Re: USB keyboard required replugging--how to avoid?
On Fri, 6 Mar 2015 12:26:40 + (UTC) Dr. Jennifer Nussbaum bg271...@yahoo.com wrote: At the (obvious in retrospect) suggestion of someone elsethread, I did just get a 6 extention cable, thus making it trivial to re-plug it when this happens. I'd rather it just works in the first place, but this will have to do. (The keyboard is a custom build and cannot be replaced.) A long shot: try plugging the keyboard via a USB hub, and if you have a few hubs lying around, try all of them. There is supposedly a USB standard, but not all implementations are created equal, and you might find a hub with which your keyboard is happier, and which has no problems with your computer USB port. USB is a moderately complex networking protocol, and there are definitely compatibility issues with some ports and peripherals. -- Joe -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150306173010.7a6d5...@jresid.jretrading.com
Re: USB keyboard required replugging--how to avoid?
Joe a écrit : USB is a moderately complex networking protocol USB is not a networking protocol. It is a master-slave peripheral communication bus, just like PCI or SATA. -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54fa19ff.1000...@plouf.fr.eu.org
Re: USB keyboard required replugging--how to avoid?
On Fri, 6 Mar 2015 12:26:40 + (UTC) Dr. Jennifer Nussbaum bg271...@yahoo.com wrote: The keyboard is a custom build and cannot be replaced. I don't know what was done to customize the keyboard. But can it be replaced for a few days/weeks (longer that it takes the regular one to crash), to see if another one will work reliably? I keep thinking it's gotta be the USB circuitry in the keyboard -- I'm assuming there's nothing but a USB cable between the keyboard and your computer. Maybe whoever customized the keyboard could diagnose/fix it. It may just be a bad chip or a loose connection inside the KB. -- Glenn English -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/2c21f1f0-2629-4019-aac4-f806f6f34...@slsware.net
Re: USB keyboard required replugging--how to avoid?
On Fri, 06 Mar 2015 22:19:59 +0100 Pascal Hambourg pas...@plouf.fr.eu.org wrote: Joe a écrit : USB is a moderately complex networking protocol USB is not a networking protocol. It is a master-slave peripheral communication bus, just like PCI or SATA. It is not peer to peer, but neither is it simple master to slave. It is hierarchical: each intermediate slave hub must engage in speed and bandwidth negotiation both up and down the line. I thought it simpler to say 'networking'. -- Joe -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/20150306215426.0fbaa...@jresid.jretrading.com
Re: USB keyboard required replugging--how to avoid?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On 03/03/15 02:22, Dr. Jennifer Nussbaum wrote: The problem is that the new box has hard-to-access USB ports, so in order to replug the keyboard, I have to remove a panel, so its not just a quick step. In the event you can't fix it properly (faulty keyboard perhaps?), you could use an extension cable, or a hub? Richard -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAEBAgAGBQJU9RMVAAoJELSi8I/scBaNfzgH/igKwX1q2gO+OSBg9KgCjrZn YfhctshMdPa88m1Snd6b8ReFeOIhp7Qxq7CEzQiDRhk68kQ/JIVsqWVpksiOc/iG AUeBx/Xywp4Gk40Nz/+zoJKZQYZquUXOJfF14UPoBMc0RsCYUDB782EBTtBglK/P nes9sBHYxTUAd5Ay2eLq6rsVVMbqxc+LUn2k++oLLveyaWdIioP3D5EUmUTjVfiU nPoHlvTmtaZvPZuWuCgYPj7JEcwG+ahO5dqd5UF0zgpHdUNt7WczqyraAIK/M4Z0 dn6OneTMS7sfsJQjOOvp4rUbpba1LutjWPoMdpWJof1HkKnzGD5f9seYg+v56gE= =Ji/t -END PGP SIGNATURE- -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54f5131d.5040...@walnut.gen.nz
Re: USB keyboard required replugging--how to avoid?
On 02/03/15 08:22 AM, Dr. Jennifer Nussbaum wrote: Hi, i have a USB keyboard that, every week or three, will drop off, and require replugging to work again. It is immediately recognized and works fine after I do this This was the case on a previous Wheezy system, and it still happens on a Jessie box I built. The problem is that the new box has hard-to-access USB ports, so in order to replug the keyboard, I have to remove a panel, so its not just a quick step. I realize that there's probably no easy solution--if the keyboard doesn't respond, i cant enter a command to re-recognize it--but are there any things i can try that would help prevent this from happening in the first place? In order to fix a problem, you first need to identify what is causing it. Is there any log entry(s) related to the keyboard? -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of unsubscribe. Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/54f48a65.1030...@torfree.net
