02-23-2015 05:27 AM
I have a ThinkPad Yoga S1. The keyboard sometimes becomes unresponsive, while the external keyboard still works fine. The keyboard revives after going to sleep mode. I have had this issue since the beginning (2 month ago).
The fact that it still works fine with the external keyboard incriminates the driver. But all drivers are up to date. (I made all the updates I could find.) And in the device manager, the status reads « This device is working properly ».
Anyone else having the same issue, ... and its solution?
02-24-2015 03:42 AM
Welcome to Lenovo Community!
As per the query we understood that you are facing issue with keyboard not working when system is on sleep mode on your ThinkPad Yoga S1.
Go to device manager and under keyboard adapter uninstall all the adapter and restart the system and check.
Run ThinkVantage system update utility and update all the drivers and application from that.
Hope this helps.
02-28-2015 10:48 AM
Thanks for your answer. I have to clarify.
The built-in keyboard sometimes becomes unresponsive, which actually usually starts by some « wavering » (I mean that the characters I type do not appear immediately on the screen - «wavering» might not be the right word, as I'm not native english-speaking).
I work around this either by connecting an external keyboard, or by closing the lid.
I executed the procedure as you described, but the problem persists.
03-02-2015 02:09 AM
Thank you for the reply!
Perform clean boot option and check restarting the system.
Have you checked booting the system into safe mode?
Hope this helps.
03-18-2015 12:17 PM
I ran the PC one hour in Safe Mode, and the keyboard worked fine. But this doesn't really help, as in normal mode, there might be several hours without issue. In Safe mode, the big issue is that I can't really work, as even MS Office 2013 doesn't start.
I'll attempt to muster enough will to try out the clean boot...
04-24-2015 09:19 AM
Not yet fixed, but I've noticed that what I initially reported as one problem are actually two.
I initially reported that
I realized that the two can happen independently.
During the whole exercise of disabling-enabling services, I focused on the lagging, which proves to be a bad idea, as I've now re-enabled all services, and I didn't spot any services that, once disabled, would avoid the lagging.
I will redo the whole process, this time trying to identify which service should be disabled to prevent the keyboard to become unresponsive.
04-27-2015 02:41 AM
Hope this helps!!!
Do post us back if the issue still persists.
04-27-2015 08:08 AM
I have been having a very similar issue with my thinkpad S1. It seems that either when my computer runs out of ram or when it recieves a shock, the Keyboard and mouse both stop responding. I can tell because the backlight doesnt even work on the keyboard.
I tried uninstalling the ultranav driver and using only the synaptics driver for the mouse but the issue would still happen to the keyboard. I haven't found any fix so far other than just putting the computer to sleep and waking it back up.
05-09-2015 11:06 PM
It has been two weeks now without a single problem. It looks like some update fixed the root cause, but I can't tell when nor which.
Thanks for your help all !