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My wireless keyboard and mouse not playing nice?

post #1 of 5
Thread Starter 
I had a combo Logitech kbd/mouse wireless (the EX100)

I switched to the Logitech K800 wireless keyboard and connected a G-CUBE wireless mouse. Both use the mini USB dongles.

For some reason the mouse stutters and lags when they are both connected? If I unplug the keyboard it seems fine.

Could there be some kind of conflict?


this mouse works fine on its own connected to the pc (and has for several months)


http://forums.logitech.com/t5/Keyboards-and-Keyboard-Mice/Terrible-lag-with-Performance-MX-mouse-and-K800-keyboard/td-p/584640/page/2


Seems like others are seeing this too. Mind you this is with the K800 and a Logitech branded mouse (you'd think it would work better).
Edited by Robilar - 8/17/11 at 9:27pm
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post #2 of 5
Placing two or more RF (radio frequency) sources in close proximity is never a good idea, as they can interfere with each other. The worst thing you can do is to put two USB dongles side-by-side or one above the other, in neighboring USB ports. If you can unify the mouse and keyboard onto one dongle, you should be better off. The 2.4 GHz band is very congested, due to Wi-Fi, Bluetooth, cordless phones, microwave oven emissions, and other wireless/cordless devices, including those of your neighbors. This RF congestion can lead to slow-downs and dropped signals. Another thing that can happen is signal blocking, due to intervening metal, which has a shielding effect. You didn't say if this was a desktop or laptop, but if it is a desktop, you probably shouldn't use the rear ports to plug the USB dongles into, as the case may shield the RF signal to an extent. Either use the front USB port(s), or use a USB extension, to get the USB dongle(s) away from the case or other metal objects. On a laptop, about all you reasonably can do is to plug your USB dongle(s) on the side of the laptop closest to the mouse and keyboard. Another source of shielding can be metal mousepads; not recommended for wireless mice, which is not saying it won't work, but it is definitely not helpful for the RF signal path.
    
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post #3 of 5
Thread Starter 
Interesting, I figured it might be some sort of bandwidth interference.

It's clearly being caused by the keyboard.

Logitech has the unifying software so perhaps grabbing a logitech wireless mouse and having them run off the same dongle would be the best idea.


Looks like the cheapest Logitech that is compatible is the M510.
Edited by Robilar - 8/18/11 at 10:52am
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Murder Box II
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CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
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Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
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post #4 of 5
Yes, getting a Logitech wireless mouse and binding to the same unifying USB receiver would be best, since the receiver is designed expressly for that purpose, and to share the available RF (and USB) bandwidth between the devices cooperatively, rather than competing with each other. Before you shell out money for a new mouse though, you can try physically separating the keyboard USB dongle from the mouse USB dongle. Try a USB extension cord, if you have one, or maybe a USB hub (some monitors have them built-in, which could be a handy place to put the mouse dongle).
    
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CPUMotherboardGraphicsGraphics
Intel Core i7-3770K Gigabyte GA-Z77X-UD5H Gigabyte 580GTX Asus 440GT for PhysX 
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16 GB G.Skill PC3-17000 2133MHz @1.65V Samsung Model 830 - 256GB SSD Samsung Model 470- 128GB SSD 2x Samsung 1 TB F3's in RAID 0 
Optical DriveCoolingOSMonitor
LG Bluray Combo Zalman Performa 10X Windows 7 64-bit Asus VG278HE 
KeyboardPowerCaseMouse
SS (Ideazon) Merc Stealth Corsair AX850 Corsair Carbide 500R CM Spawn 
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post #5 of 5
Thread Starter 
Finally found a solution...

Bought the Logitech M510 wireless unifying mouse. It uses the same receiver as the K800 (so only a single dongle required).

All lag is now gone.


I wonder if Logitech planned it this way...

With that said, the M510 is an amazing wireless mouse.

DSC09891.jpg
Murder Box II
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Home PC
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CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
Hard DriveCoolingOSMonitor
Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
KeyboardPowerCaseMouse
Delux T9 Pro / Logitech K360 EVGA Supernova G2 1000W Corsair 450D Mionix Naos 7000 
Mouse PadAudioAudioOther
Perixx DX-3000LAL Aluminum Sound Blaster Z Logitech Z906 - 5.1 Maxnomic Commander S-III Gaming Chair 
CPUMotherboardGraphicsRAM
Intel G3440 Asus B85M-E/CSM EVGA GTX 950 Patriot Viper 3 - 2x8GB 1600hz 
Hard DriveOptical DriveCoolingOS
Samsung EVO 850 - 500GB + 4TB/3TB x 2/2TB WD Green LG CH12LS28 Bluray Scythe Big Shuriken 2 w/Corsair SP120 Fan Windows 10 64 Bit 
MonitorKeyboardPowerCase
Samsung 75" TV.... GooBang Doo MX3 Corsair CX430 V2 NMEDIAPC HTPC 6000B w/ Pro LCD Module 
Mouse
GooBang Doo MX3 
  hide details  
Reply
Murder Box II
(18 items)
 
Home PC
(15 items)
 
 
CPUMotherboardGraphicsRAM
Intel 8700k Gigabyte Aorus Z370 Gaming 7 Zotac 1080Ti AMP Extreme Edition G. Skill Trident Z - 32GB/ 3200Hz/CL14/Dual 
Hard DriveCoolingOSMonitor
Sandisk Extreme Pro 480GB Corsair H100i V2 - w/ML120 Pro Fans Windows 10 Home 64 Bit Acer Z35P 1440P G-Sync 
KeyboardPowerCaseMouse
Delux T9 Pro / Logitech K360 EVGA Supernova G2 1000W Corsair 450D Mionix Naos 7000 
Mouse PadAudioAudioOther
Perixx DX-3000LAL Aluminum Sound Blaster Z Logitech Z906 - 5.1 Maxnomic Commander S-III Gaming Chair 
CPUMotherboardGraphicsRAM
Intel G3440 Asus B85M-E/CSM EVGA GTX 950 Patriot Viper 3 - 2x8GB 1600hz 
Hard DriveOptical DriveCoolingOS
Samsung EVO 850 - 500GB + 4TB/3TB x 2/2TB WD Green LG CH12LS28 Bluray Scythe Big Shuriken 2 w/Corsair SP120 Fan Windows 10 64 Bit 
MonitorKeyboardPowerCase
Samsung 75" TV.... GooBang Doo MX3 Corsair CX430 V2 NMEDIAPC HTPC 6000B w/ Pro LCD Module 
Mouse
GooBang Doo MX3 
  hide details  
Reply
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