Windows 10: Laptop keyboard and touchpad randomly do not work
Laptop keyboard and touchpad randomly do not work
Ever since I've upgraded my dad's laptop to Windows 10, the keyboard and touchpad stop working randomly, and would work only after I restart the computer. (logging off, switch user, standby mode doesn't resolve it.)
There is no pattern to it. Sometimes it would be ok for a few days, sometimes it would happen again after a few hours. I mostly do internet browsing on the laptop.
When the problem occurred:
- The keyboard AND the touchpad would both stop working at the same time.
- USB mouse still works. (I do not have an external keyboard to test)
- The lights on the keys themselves (eg caps lock, wifi) would still remain on if they're activated but cannot be toggled on/off as usual.
- The device manager still showed no problems with the mouse or keyboard.
Things I've tried:
- sfc /scannow
- disabled sticky keys
- used the generic drivers for keyboard and touchpad
- reinstalled the drivers for keyboard and touchpad
- updated to the latest synaptics driver
- made a new synaptics trackpad profile
- disabled touchpad when using the USB mouse
HP Pavillion dm1-4002AU
Windows 10 Home 64bit (upgraded from Win7 and then reset to a fresh state)
AMD Radeon HD 6230 Graphics
Synaptics Driver Version: 18.104.22.168 06Jul15
Synaptics PS/2 Port TouchPad
Lenovo ThinkPad PS/2 keyboard
This is very exasperating. I would appreciate some help in stopping this problem permanently, thanks.
Last edited by krytoned; 25 Aug 2015 at 07:44.
I am having the same problem. Is there any update on this ??
Having the SAME problem on thinkpad Yoga!
Been there, done that, and in every case in my personal experience (Lenovo and Dell tablets and notebooks) the Synaptics driver was the problem. I notice that the generic Synaptics drivers on their download page are up to version 22.214.171.124. Have you tried one of these (you probably need the SMBus version)?
Windows 10 PS/2 & SMBus Devices v126.96.36.199*
Windows 10 I2C Devices v188.8.131.52*
Thanks Ed Tittel,
I thought I managed to fix it with the Synaptics drivers as you suggests. So I went to install all of them. But now I see that the problem is still on. Every couple of hours/days suddenly the keyboard stops working completely, and only after restart/hibernate-rehibernate it becomes responsive again.
Sorry for your trouble. Keep messing around with the drivers. Sooner or later, you'll find a combination that works for your rig (or rigs).
Okay, thanks. I will try to install your first suggested driver (indeed, what is the second one?)
SMBus and IC2 are two different kinds of "attachment chips" that enable the touchpad to hook itself into a device chain on some port or another. Each uses different drivers because each is based on slightly different hardware (SMBus is a strict subset of IC2/I2C, in fact). If you look under "System devices" in DevMgr, you'll see SMBus on most notebooks, laptops, or tablets, and IC2 on certain others. Here's a screencap from my Lenovo X220 Tablet showing the SMBus device item:
If you really want to root around in the gory details here's a technical discussion: Comparing the IC Bus to the SMBus - Application Note - Maxim.
Hmm....a new year...but still the same problem: I updated all my drivers using Driver Booster 4 (a shareware that automatically updates all your drivers) and the same problem persists: random switching off of the keyboard on my Yoga Thinkpad s2, Win10, 64bit.
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