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Thread: Keyboard Randomly Stops Working

  1. #1
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    Jul 2008
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    Kubuntu 12.04 Precise Pangolin

    Question Keyboard Randomly Stops Working

    Hi all,

    I am going to make my situation as concise as possible.

    I have a Dell Optiplex755 refurbished that I bought recently. I did a clean install of Kubuntu 12.04 64-bit (all updates done) with no other OS on the system.
    The issue I am having is that my Sejin IR Wireless Keyboard with Trackball connected to the computer via a PS/2 - USB Dual Adapter stops working.
    What is strange is that the integrated trackball still works but the keyboard is useless. I also have a wireless mouse attached via USB if this helps in any way.

    The same setup worked flawlessly on a Dell Dimensions3000. The only difference is that the keyboard was connected via a PS/2 interface with no USB adapter.

    So far if I unplug and re-plug the USB adapter I get the keyboard working again. But this is not a valid solution and I hope to be able to sort this out in another fashion that won’t require me to physically reset the USB connection ever so often.

    Thank you

  2. #2
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    Re: Keyboard Randomly Stops Working

    If the track ball still works, wouldn't that point to the keyboard being faulty/losing the connection?

  3. #3
    Join Date
    Apr 2012
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    Lubuntu 13.04 Raring Ringtail

    Re: Keyboard Randomly Stops Working

    It sounds like a definate problem with the usb adapter, given that is the only thing that changes the issue.

    Is it a generic type or is it branded?

    type to find out your device name if unknown:

    <code> lsusb --d<code>
    <code> lsusb <code>
    Boab1993

  4. #4
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    Re: Keyboard Randomly Stops Working

    Hi,

    thank you for the quick replies.

    @slw210
    The keyboard and trackball are all part of the same unit (See Pic). The connection is via IR receptor no different from a remote control, which is why I like it since the batteries last forever with it.




    @Boab1993
    I'll do what you suggested once I get home. I bought the device at a Dollar store so it's most likely generic.

  5. #5
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    Re: Keyboard Randomly Stops Working

    Its very possible that the drivers for generic devices don't support the device entirely, given the nature of the usb device being quite specfic.

    you can download additional drivers in user firendly manner by downloading 'Jockey' from the software center, however i couldnt tell you what drivers you need if you have no brand, it would just be the generic drivers.

    https://apps.ubuntu.com/cat/applicat...se/jockey-gtk/

    There are people who are far more experienced in this area on the forum who im sure will help.

    Stay vigilant.
    Boab1993

  6. #6
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    Re: Keyboard Randomly Stops Working

    Quote Originally Posted by Boab1993 View Post
    Its very possible that the drivers for generic devices don't support the device entirely, given the nature of the usb device being quite specfic.

    you can download additional drivers in user firendly manner by downloading 'Jockey' from the software center, however i couldnt tell you what drivers you need if you have no brand, it would just be the generic drivers.

    https://apps.ubuntu.com/cat/applicat...se/jockey-gtk/

    There are people who are far more experienced in this area on the forum who im sure will help.

    Stay vigilant.
    Hi,

    Thanks again for the support.
    So the first thing is the <code> lsusb <code> output.

    Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
    Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
    Bus 003 Device 002: ID 0ac8:301b Z-Star Microelectronics Corp. ZC0301 Webcam
    Bus 003 Device 003: ID 046d:c509 Logitech, Inc. Cordless Keyboard & Mouse
    Bus 006 Device 002: ID 05a4:9837 Ortek Technology, Inc.
    Bus 006 Device 005: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter
    Bus 006 Device 004: ID 05a4:9862 Ortek Technology, Inc.


    The ortek part is a Targus numpad with two usb outputs that I use when crunching numbers.

    I'll try to see if it's a keyboard specific thing by taking it out and using a standard Dell USB keyboard for a while. If the same behaviour occurs I would have eliminated the keyboard as a cause.

    I'll post back once I know more.

  7. #7
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    Re: Keyboard Randomly Stops Working

    Quote Originally Posted by Confused Computer User View Post

    Bus 006 Device 005: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter
    That should be your USB adapter just by the by.

    Keep us posted sir, someone will answer.
    Boab1993

  8. #8
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    Re: Keyboard Randomly Stops Working

    I have a wireless keyboard and mouse, and Kubuntu. I'll have to try that out and see if mine works. I haven't messed with it for quite awhile.
    boot_info_script | AMD64 Athlon X2 Dual-Core - nVidia Geforce 6150 SE - 4GB DDR3

  9. #9
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    Re: Keyboard Randomly Stops Working

    I wonder if the two devices are in conflict with each other:
    Code:
    Bus 003 Device 003: ID 046d:c509 Logitech, Inc. Cordless Keyboard & Mouse
    Bus 006 Device 005: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter
    Both are keyboard devices.

    Also I plugged in my wireless keyboard/mouse and it works great. As good if not better than my wired usb keyboard/mouse.

    Code:
     lsusb -d 04fc:05d8Bus 002 Device 002: ID 04fc:05d8 Sunplus Technology Co., Ltd Wireless keyboard/mouse
    boot_info_script | AMD64 Athlon X2 Dual-Core - nVidia Geforce 6150 SE - 4GB DDR3

  10. #10
    Join Date
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    Re: Keyboard Randomly Stops Working

    Quote Originally Posted by VMC View Post
    I wonder if the two devices are in conflict with each other:
    Code:
    Bus 003 Device 003: ID 046d:c509 Logitech, Inc. Cordless Keyboard & Mouse
    Bus 006 Device 005: ID 13ba:0017 Unknown PS/2 Keyboard+Mouse Adapter
    Both are keyboard devices.

    Also I plugged in my wireless keyboard/mouse and it works great. As good if not better than my wired usb keyboard/mouse.

    Code:
     lsusb -d 04fc:05d8Bus 002 Device 002: ID 04fc:05d8 Sunplus Technology Co., Ltd Wireless keyboard/mouse
    Thank you for the reply.
    They don't seem to be in conflict. At least not to the best of my knowledge. I say this based on the fact that using the same equipment on an older Dell computer (running the same linux) did not result in the above mentioned issue.

    I have as promised tried a wired USB (Dell) keyboard which has not resulted in the behavior detailed in my original post.

    I will attempt to buy a different PS/2 to USB adapter and report with findings.

    Cheers

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