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| [Question] Linux: Personalization Tool hangs the desktop https://forum.yubico.com/viewtopic.php?f=26&t=2423 |
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| Author: | henrylaw [ Tue Sep 13, 2016 7:24 pm ] |
| Post subject: | [Question] Linux: Personalization Tool hangs the desktop |
I bought a Yubikey Neo to be used in C/R mode with a passwordsafe database. Started configuring today and can't get anything to work. Can someone help me diagnose and fix this? 1. Yubikey in USB slot; messages in syslog show that it's identified: Code: Sep 13 18:13:18 eris kernel: [ 4252.530020] usb 1-1.2: new full-speed USB device number 6 using ehci-pci Sep 13 18:13:18 eris kernel: [ 4252.624355] usb 1-1.2: New USB device found, idVendor=1050, idProduct=0116 Sep 13 18:13:18 eris kernel: [ 4252.624361] usb 1-1.2: New USB device strings: Mfr=1, Product=2, SerialNumber=0 Sep 13 18:13:18 eris kernel: [ 4252.624366] usb 1-1.2: Product: Yubikey NEO OTP+U2F+CCID Sep 13 18:13:18 eris kernel: [ 4252.624369] usb 1-1.2: Manufacturer: Yubico Everything else works. Yubikey light is not flashing. 2. Take key out, start the Personalization tool (Version 3.1.23, library version 1.17.2, obtained from the Linux Mint 18 repo). Everything else works OK. 3. Put Yubikey in and start Pers Tool: key is identified by the tool but the desktop freezes: can't change to other windows, selecting different menu items on the tool has no effect. Initially the desktop comes back, after about a minute, but eventually the freeze is permanent. At this point there is a continuous series of syslog messages like this: Code: Sep 13 18:13:20 eris kernel: [ 4254.106535] hid-generic 0003:1050:0116.0008: input,hidraw5: USB HID v1.10 Keyboard [Yubico Yubikey NEO OTP+U2F+CCID] on usb-0000:00:1a.0-1.2/input0 Sep 13 18:13:20 eris kernel: [ 4254.471308] input: Yubico Yubikey NEO OTP+U2F+CCID as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:1050:0116.0009/input/input25 Sep 13 18:13:20 eris kernel: [ 4254.526485] hid-generic 0003:1050:0116.0009: input,hidraw5: USB HID v1.10 Keyboard [Yubico Yubikey NEO OTP+U2F+CCID] on usb-0000:00:1a.0-1.2/input0 Sep 13 18:13:22 eris kernel: [ 4256.063659] input: Yubico Yubikey NEO OTP+U2F+CCID as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/0003:1050:0116.000A/input/input26 4. After restarting the desktop, I try out "ykinfo"; it works fine, thus: Code: ~$ ykinfo -a serial: blah serial_hex: blah serial_modhex: blah version: 3.4.9 touch_level: 1029 programming_sequence: 1 slot1_status: 1 slot2_status: 0 vendor_id: 1050 product_id: 116 ~$ The Yubikey is generating keystrokes: I used it to register for this forum and to logon. This is deeply depressing. Can someone help me to diagnose the fault and make some progress? |
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| Author: | linsam [ Wed Sep 14, 2016 1:39 pm ] |
| Post subject: | Re: [Question] Linux: Personalization Tool hangs the desktop |
This sounds similar to an issue I had. I plugged the yubikey into an unpowerd USB hub that was plugged into a Dell monitor with built-in USB hub (I thought powered, but apparently not) which was attached via full-length USB cable to my PC. The result was that there wasn't enough power to keep the Yubikey powered fully through its startup; it flickered weirdly and would get partial adds in my syslog. The solution there was to shorten the distance or put a powered hub in the middle. (I haven't gotten a powered hub yet, so I'm currently plugging in directly at the monitor, even though that's more awkward to reach). If you're key isn't plugged directly into a port on your computer, try moving it there and try again. (More technical description for those inclined: USB specifies maximum cable lengths and minimum wire gauge, because manufacturers want to make cables as cheaply as possible (thinner wires) and people want long, flexible cables for convenience, but thinner gauges and longer wires means more voltage drop in the wire (because wire acts like a resistor). In my case and others like it, the initial voltage is high enough to start the Yubikey, but as they key starts doing stuff, it draws more current. Since the total cable length was too long and my wires aren't great, the increased current load causes a high enough voltage drop that there isn't enough voltage to keep the Yubikey running, and it resets. Under reset, the current draw drops to almost nothing, allowing the voltage to increase back up to the point where the Yubikey can start up again, and the process loops). |
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| Author: | henrylaw [ Wed Sep 14, 2016 3:17 pm ] |
| Post subject: | Re: [Question] Linux: Personalization Tool hangs the desktop |
Thank you for the suggestion but I don't think that's it, because the key is plugged into one of the slots on the side of the laptop. |
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| Author: | henrylaw [ Tue Dec 13, 2016 6:52 pm ] |
| Post subject: | Re: [Question] Linux: Personalization Tool hangs the desktop |
Just for completeness, I have solved this problem. I used the nuclear method, namely completely rebuilding the laptop (though using precisely the same software). So something in the old installation was incompatible with the Personalization Key, and that something has--by accident--gone away in the rebuild. No help to anyone, I know, but it's so annoying to find a thread which refers to your specific problem and then find that it just drifts off into the ether... |
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