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Logitech "Unifying" Keyboard boot problem

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Unread 26-10-2013, 11:17 AM   #1
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Question Logitech "Unifying" Keyboard boot problem

Logitech makes several nice sets of keyboards/meeses, and other HID devices, that operate on Bluetooth channels with a "unifying" transceiver that plugs into a standard USB 2 port. I have heard that there are problems with USB 3.0 ports, but have not observed that.

My problem is this: during POST and the boot phase of any Windows or Linux version, ie; before the OS even starts to load; that is, the time one would select a dual-boot OS or enter the BIOS setup program, The Unifying system is non-responsive - the keyboard does nothing, the mouse does nothing. Very frustrating. A standard USB 2 keyboard/mouse works fine. This also implies, although I've not tested it, that getting into "Safe Mode" would also be a problem.

I contacted Logitech, and their script reader had me chasing all sorts of Windows drivers, and system status reports, even a video driver report. This after I had explained, twice, that the OS wasn't even loaded when the problem occurred. He finally said he'd pass the ticket up the line, so I might get a real answer.

Actually, once Windows and it's drivers started, everything worked great - it's a nice HID system. Meanwhile I still can't start BIOS setup with it. Apparently, the BIOS doesn't recognize the unifying transceiver as a USB channel to the HIDs, or the transceiver doesn't store the pairing data for the HIDs - it's stored by the driver in the OS. Changing transceivers has no effect.

System:
Mobo - Gigabyte GA-Z77X-UD5H w/ i7-3770 (not -k) / 32GB Kingston Black 1600 / using native Intel HD4000 video. All mobo USB 2.0 and 3.0 ports are available.
OSs - various, incl. Win XP Pro 32, Win 7 Ult 64 sp1, Win 8.1Pro 64, Linux Mint 14, etc.
HIDs - Logitech MK710 Wireless Desktop (unifying) and LX710 wireless keyboard (USB)
Antec plugin SATA drive adapter for boot disk.
Power - Antec EA-650
BIOS: AMI Version F14 dated 8/2012 - latest available.

As I said, I am in touch with Logitech about this and will update this post with their answer.

Anybody else have this or similar problems?
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Last edited by davnel; 26-10-2013 at 11:35 AM..
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Unread 27-10-2013, 11:36 PM   #2
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Re: Logitech "Unifying" Keyboard boot problem

Hmm, like you said, Logitech is using the 'Unifying receiver' software/driver to store the pairing info; so it is very unlikely that you'll be able to use a wireless keyboard in BIOS/Boot screen.

I'm using the K400 Wireless keyboard+mouse combo from logitech and it uses a similar BT dongle. But I'd imagine the pairing info is pre-programmed in the dongle and hence it does work pre-boot. For the Unifying receiver, they'll have to re-engineer dongle with some programmable storage & decoding circuits to achieve this.

Logitech designers must have considered this when they were building the thing. Perhaps too costly or complex for a small BT dongle?
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Unread 27-10-2013, 11:49 PM   #3
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Re: Logitech "Unifying" Keyboard boot problem

Strider:
Thanks. That was my thinking, some means of storing pairing data in the dongle, not the driver as it is now. Too bad, really. This desktop set is really nice, just not usable during boot. Logitech may respond this week , so I'll update the post with their answer.
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Unread 14-11-2013, 02:38 AM   #4
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Re: Logitech "Unifying" Keyboard boot problem

Update 11/13/13 - Gigabyte basically threw their hands up and claimed ignorance. I have heard nothing from Logitech since 10/24/13. I have spoken to several other technical people and they agree that, given the current Bluetooth Standard, it's unlikely this scheme will work until the drivers get loaded. I have removed the "unifying" desktop system and replaced it with standard USB wireless. Too bad, I loved that keyboard.

Update 12/02/13 - Logitech is claiming that they DON'T use Bluetooth "Protocols", but, between you, me, and the nearest rock, the MECHANISM is pure Bluetooth. I found the paring data in the Registry. No way this system can operate until the OS is loaded and running.
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Last edited by davnel; 02-12-2013 at 05:02 PM..
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Unread 14-11-2013, 01:49 PM   #5
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Re: Logitech "Unifying" Keyboard boot problem

Logitech pushing this 'unifying' thingie with all their products. I doubt they'll acknowledge this problem openly.
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Unread 12-12-2013, 09:04 PM   #6
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Re: Logitech "Unifying" Keyboard boot problem

Well, they're gonna get a rude awakening when anyone tries to get into BIOS setup, and can't, and screams about it on public forums. I predict a sudden catastrophic sales drop.
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Unread 15-12-2013, 02:00 PM   #7
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Re: Logitech "Unifying" Keyboard boot problem

Quote:
Originally Posted by davnel View Post
Well, they're gonna get a rude awakening when anyone tries to get into BIOS setup, and can't, and screams about it on public forums. I predict a sudden catastrophic sales drop.
Mine works perfect on my dual boot tower of win7 and PCLOS. Logitech keyboard and mouse, one dongle.
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Unread 15-12-2013, 06:18 PM   #8
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Re: Logitech "Unifying" Keyboard boot problem

Rootbear:
Would you please let me know which model wireless desktop you are using? I can't get any of my unifying sets to work during boot.
Thanks
Dave
Just so we're perfectly clear about what I mean by "unifying" see below:





Notice the similarity in size and shape to a blue tooth dongle.
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Last edited by davnel; 15-12-2013 at 06:53 PM..
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Unread 15-12-2013, 07:36 PM   #9
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Re: Logitech "Unifying" Keyboard boot problem

Came together as a combo unit. Keyboard---K520 Mouse---M310 This unifying device will supposedly also pick up other logitech wireless devices, such as the other wireless mouse that I have but I haven't tried it as I sometimes have my tower and my laptop on at the same time and very close together. M510 for the laptop. It also came with a six-to-eight foot USB extension cable in case you need to move the dongle closer to your devices, or in my case, tower can't be seen from couch, so I use the cable to bring the dongle to the top of the wall unit and it covers the entire living-room and dining-room(cannot see the dongle).
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Unread 15-12-2013, 07:51 PM   #10
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Re: Logitech "Unifying" Keyboard boot problem

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Rootbear:
Thank you. That set IS a "Unifying" set. Can you access the BIOS setup screen using the K520?
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