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Old 12-18-2018, 08:44 PM   #1
LenHoff
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Registered: Mar 2017
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Older keyboard logitech "cordless" suddenly can't pair - unifying receiver


1st, I've used this Logitech "comfort cordless keyboard" Y-RAU7 in Mint 18.1 for nearly 2 yrs w/o problems. And the same LX7 mouse & keybd w/ SAME unifying receiver, so they will work. I think? the mouse that came w/ keybd is still around. I assume when Mint was installed, the keybd & mouse had to be paired under Linux?

Y'day my mouse was acting funny (was testing mousepads). Decided to "pair" it w/ the receiver. Receiver & mouse (& keybd) all have connect / reconn. buttons.

Mouse was / is then fine, but the keybd stopped working. Only one key on it (sleep) interacts w/ receiver or computer.
Should mention in terminal, "lsusb" or lsusb -vv shows the unifying receiver, the mouse, and AN "ALCOR Micro Corp. keyboard." Under Linux, don't remember a "Micro Corp" keyboard connected.

Don't know if detecting a Micro Corp keybd is artifact left from ???, or if the receiver and / or keybd aren't sending / receiving correct info; or if it even matters. In the pairing process, keybd is a few inches away from receiver and the receiver lights seem to show *something* connected during the pairing process.

Tried multiple tricks to get keybd to pair. Most "tips" to reconnect keybd w/ unifying receiver were for *Windows.* Another logitech k250 keybd w/ it's own mini usb receiver works fine - doesn't need the unifying receiver. I disconnected the k-250 when trying "fix tricks."

I went over Logitech's check list before reconnecting a device w/ receiver https://support.logitech.com/en_us/p...faq#link_28807.

Stumbled across couple of Linux apps to help pair keybds or mice & unifying receivers.
One, Solaar -in Mint's repo, "Logitech unifying receiver peripherals manager for linux." One issue is on Solaar's site, says if your keyboard or keyboard & mouse combo AREN'T listed (in chart), there's very LITTLE chance Solaar will work. Mine isn't listed.

* Question: what are the chances that installing Solaar & attempting a fix - if fails - will make me very sorry? (dev says high chance it won't work, but "if you find it works on unlisted devices, please let me know." "OH-TAAY!"

Mint Software Manager has 2 Solaar pkgs: Solaar & Solaar-gnome3.

The other Linux tools I found are Pairing tool & ltunify:
"Pairingtool can only be used for pairing and does not provide feedback, it also needs to know the device name for pairing. ltunify and Solaar can detect the receiver automatically."

* Q: Has anyone used these Linux apps for devices NOT listed as compatible models? Either way, any success?

Here's a couple of syslog excerpts, from y'day at the time I tried pairing the comfort keybd. But was also plugging in the logitech K-250 KB, when method (n-1) didn't work.

Not positive, but don't think the system / unifying rec'vr is confusing the logitech K-250 for an Alcor keybd, as syslog & output from command: lsusb still shows Alcor usb keybd connected, when NO usb keyboards are plugged in.
I don't know where "Alcore" came from, unless it was a cheap HP keyboard made by Alcore (used 9 yrs ago in Windows, for a few min.) - or if it's a problem.

Dec 17 17:10:57 d5200 kernel: [ 1.676411] hidraw: raw HID events driver (C) Jiri Kosina
Dec 17 17:10:57 d5200 kernel: [ 1.682044] usb 6-2: New USB device found, idVendor=058f, idProduct=9410
Dec 17 17:10:57 d5200 kernel: [ 1.682048] usb 6-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
Dec 17 17:10:57 d5200 kernel: [ 1.682051] usb 6-2: Product: USB Multimedia Keyboard
Dec 17 17:10:57 d5200 kernel: [ 1.682053] usb 6-2: Manufacturer: ALCOR
Dec 17 17:10:57 d5200 kernel: [ 1.682055] usb 6-2: SerialNumber: USB Multimedia Keyboard

Dec 17 17:10:57 d5200 kernel: [ 1.734914] input: ALCOR USB Multimedia Keyboard as /devices/pci0000:00/0000:00:1d.1/usb6/6-2/6-2:1.0/0003:058F:9410.0002/input/input5
Dec 17 17:10:57 d5200 kernel: [ 1.736767] input: Logitech USB Receiver as /devices/pci0000:00/0000:00:1a.1/usb4/4-1/4-1:1.0/0003:046D:C517.0001/input/input6
Dec 17 17:10:57 d5200 kernel: [ 1.788155] hid-generic 0003:058F:9410.0002: input,hidraw0: USB HID v1.10 Keyboard [ALCOR USB Multimedia Keyboard] on usb-0000:00:1d.1-2/input0
Dec 17 17:10:57 d5200 kernel: [ 1.792164] hid-generic 0003:058F:9410.0004: hiddev0,hidraw1: USB HID v1.10 Device [ALCOR USB Multimedia Keyboard] on usb-0000:00:1d.1-2/input1


12/18/18:

Dec 18 17:45:46 d5200 kernel: [26104.033049] usb 5-1: New USB device found, idVendor=046d, idProduct=c52b
Dec 18 17:45:46 d5200 kernel: [26104.033054] usb 5-1: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Dec 18 17:45:46 d5200 kernel: [26104.033057] usb 5-1: Product: USB Receiver
Dec 18 17:45:46 d5200 kernel: [26104.033060] usb 5-1: Manufacturer: Logitech
Dec 18 17:45:46 d5200 kernel: [26104.050175] logitech-djreceiver 0003:046D:C52B.000B: hiddev0,hidraw0: USB HID v1.11 Device [Logitech USB Receiver] on usb-0000:00:1d.0-1/input2
Dec 18 17:45:46 d5200 kernel: [26104.171313] input: Logitech K250 as /devices/pci0000:00/0000:00:1d.0/usb5/5-1/5-1:1.2/0003:046D:C52B.000B/0003:046D:2015.000C/input/input13
Dec 18 17:45:46 d5200 kernel: [26104.171838] logitech-hidpp-device 0003:046D:2015.000C: input,hidraw1: USB HID v1.11 Keyboard [Logitech K250] on usb-0000:00:1d.0-1:2
Dec 18 17:45:46 d5200 upowerd[1976]: message repeated 14 times: [ GnuTLS error: Error in the pull function.]
Dec 18 17:45:46 d5200 mtp-probe: checking bus 5, device 3: "/sys/devices/pci0000:00/0000:00:1d.0/usb5/5-1"
Dec 18 17:45:46 d5200 mtp-probe: bus: 5, device: 3 was not an MTP device
 
Old 12-18-2018, 09:27 PM   #2
RandomTroll
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Registered: Mar 2010
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I've been using Logitech wireless keyboard & mouse happily for 5 years. I had to pair them under Windozzze. Last time I looked there was no way to do it in Linux. I had to do it only once - it's stuck. Maybe you have a friend or a public computer with lax security.
 
  


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