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Keyboard lagging

Keyboard lagging

Keyboard lagging

I have a user that is complaining that when they type, it's lagging. I've already replaced their keyboard with a brand new one. When I did, I noticed they had an extension because the pc is so far away from the machine. This couldn't be causing the lag could it? I really don't want to move the pc closer as she has a heater and we all know heat is no go for a pc.

RE: Keyboard lagging

Could they use a wireless keyboard?

RE: Keyboard lagging

I could, but those are even more unreliable do to the battery power. In the past, I never had good luck with wireless keyboards.
To test without the extensions, I moved her pc closer, turned off her heater, and am having her try it without the extensions. We'll see what she reports back.

RE: Keyboard lagging

Look to see how busy the PC is. Run Task Manager and/or Resource Manager. I've seen PCs with a swamped CPU get laggy in a lot of different things including responding to key strokes. Also, running low or out of memory can make a machine run like molasses.

Is it all the time, or just at certain times? Maybe some background cleanup, virus check, or defrag is starting and eating up resources.

When they keyboard is laggy, does the mouse pointer also seem sluggish? That usually points to CPU or memory starvation.

What app is she using? Typing into Notepad requires almost no CPU, but typing into something like Word with heavy formatting being applied can eat a lot more of the machine.

What are the specs of the machine? CPU speed, disk speed, and physical memory can all affect how responsive it is. In fact I've seen laptops almost double their performance just by adding more memory.

RE: Keyboard lagging

Another alternative is a KVM over IP/CAT5. These are quite reliable. I've run them from the 2nd floor to the ground floor. Only restriction is the max monitor size: normally 1920x1200.

The main problem is price - they're quite pricy.

RE: Keyboard lagging

XWB meant "IS the user using a wireless keyboard?" Meaning - if it was wireless, it could be the source of the lag.
Agree with SamBones. Most likely - CPU use is very high and that is causing the lag. Seen it before check "System Idle Process" with Process Explorer. If that parameter is LOW, then something else is using the CPU. See what task is using the most CPU. Investigate high users.

RE: Keyboard lagging

Look into the Logitech K750 keyboard. It has NO replaceable batteries, it uses solar cells on the keyboard and need to be exposed to 1 hour of light (sun light or office lights) per week to be fully charged. I have used it for over a year and it works great

Lead Application Developer
New York State, USA

RE: Keyboard lagging

Quote (goomabawaho)

Investigate high users.

I'm convinced a lot of my users are high, but I haven't found a technical solution for that. Yet. bigsmile

RE: Keyboard lagging

Well played. I would prefer "high" users because they just sit around and do NOTHING. Non-high users do all kinds of crazy things to systems.

RE: Keyboard lagging

Excellent point. I agree completely.

RE: Keyboard lagging

From my side, I think you should buy a wireless keyboard to solve this problem. There are many best wireless keyboards with long distance range are available in the market.

RE: Keyboard lagging

>I think you should buy a wireless keyboard to solve this problem.

Why? The length of a USB cable should not introduce any lag (obviously if you exceed USB design specs- so 5m for USB 2 - then you might get a problem with the signal getting through, but that's a different issue)

RE: Keyboard lagging

Sorry for the lack of response, had to have emergency surgery.
The user is not using a wireless keyboard and I agree that the length of the usb cable shouldn't have anything to do with lag.
I've looked at cpu usage and nothing is spiking.
I'm thinking it might just be all kinds of junk built up in the system over the years. She's been using this machine for about 4 or 5 years now.
I'm thinking my best solution might just be a rebuild.

RE: Keyboard lagging

Try a clean boot to see if the keyboard behaves. If it does behave in a clean boot environment then it's the sum total of everything dragging the system down if no main prime suspect hogging the CPU.

RE: Keyboard lagging

Yes sometimes long wires makes the speed go slower so to check this you must first check or be sure that is the long wire is responsible or the pc itself. Clear out the task and free up the ram and check again to see if the problem exists. If it does then try using wireless keyboard.

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RE: Keyboard lagging

The wireless keyboard (Logitech K270) had lagging and dropout. The wireless mouse occasionally had click dropouts. The caused was interference by the external hard drive sitting on my desk in a direct line (about 24 inches) between the usb wireless receiver dongle on the back of the computer. When the hard drive was moved back on top the computer or was on the desk with the data cable unplugged there was no issue.

RE: Keyboard lagging

Maybe there is some kind of interference between your pc and your keyboard. Or it might be the material of your table, thats bad for the signal.

RE: Keyboard lagging

Thank you for your response.
I am less convinced the issue was the external hard drive and believe it was a weak battery in the mouse. The takeaway is if someone has similar issues, check both the keyboard and mouse batteries. I can only surmise that since both the keyboard and mouse are wireless on the same USB dongle, the weak mouse batteries may have been affecting the keyboard.

Two weeks ago the issue became more severe, less intermittent and involved the mouse. It allowed for a better diagnosis. Before the first post, I did due diligence. Two-volt meters and a battery tester were verified as working properly. The keyboard batteries and 2 sets of alternate batteries were tested. Both voltage and current were tested on all the batteries. They were all tried in the keyboard. Logitech software also indicated the keyboard batteries were OK. The hard drive was disconnected and reconnected and it appeared that when it was connected there was an intermittent issue. The mouse battery was never tested and there is no on board software to indicate its state. About 2 weeks ago, the mouse pointer intermittently froze but then would unfreeze. It seemed to be during editing a massive document online; however, it started to occur consistently even on simpler usage items and even after rebooting. I started at square one and tested the mouse battery. It was very bad. It has been replaced and there has been no issues since.

RE: Keyboard lagging

I kind of forgot about this thread I created. I got a little confused too when JAWChemist said this was resolved. I thought this was my thread...:)
Anyways, either my user got used to the lag, or it went away as she hasn't said anything in a very long time about this.
I want to thank everyone for their input and I apologize that I abandoned this thread.

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