10-02-2011 09:51 AM
Nothing is working. I've tried multiple things, I know that this is a problem with multiple users of the same computer. Could you contact Lenovo staffs and ask whether this is a software issue or hardware? I will also attempt to contact them myself.
10-05-2011 05:37 PM
10-05-2011 10:43 PM
One more thing. I observed that this only happens when my laptop is plugged in. The mute/unmute problem stops after unplugging the laptop. Probably a Lenovo Energy Management issue.
10-06-2011 07:17 PM
Alright, I will attempt removing those two programs, if I will report back if I have that issue.
However, if it does turn out to be a software issue, what would you suggest I do about it, as those two features, while not neccesary, are one of the many reasons why I bought the Z470
10-13-2011 06:31 PM - edited 10-13-2011 06:32 PM
I have uninstalled both power management and one key theater.
However, the problem still exists, although mainly it just keeps muting itself.
I have no clue what is causing the problem, is there some way to deactivate the touch panel altogether?
06-21-2012 10:40 PM
I face a same problem too.. so pity.. the touch panel activated without any touch. the sound is going to turn off, and turn on every second.
12-03-2012 09:01 AM
my laptop z470 has the same problem.
I will send to warranty this week.
when I work without the energy cable supply all works perfect.
when I plug the laptop into energy and put my hands in the "case surrounding the keyboard" (metal part nearby the keyboard) the problems with touch panel begins. (mute, increase, decrease sound, changing economy energy way, cooler, theater, etc)
If I raise my hands (taking your hands off the keyboard), the problem disappear.
the problems only occurs when I touch the laptop case.
my solution is to use an external mouse and keyboard. But sometimes I need to work directly into laptop keyboard.
the problem, I think is a "bad electric contact". Restore Windows or desactivate power management software do not solve the problem
I made a movie and posted on youtube:
or search ledoidoz470 on youtube.
thanks for any reply
12-03-2012 04:25 PM
12-18-2015 02:38 AM
So i see it hasn't been only me that has this problem. If i may offer some suggestions that may help?
1. I did not have this problem initially, nor when i had to replace the adapter (it's rated 20V 4.5 A) with a temporary one, a bit less (19.4 V 4.1 A), and it worked. No static. Eventually i bought an adapter that is of the original rating, and then the problems began. It's really the static, because when i'm running on battery it doesn't have the problem.
2. A temporary solution i've tried is to put a short wedge of staple wire (not an individual staple, but by breaking off a short segment of 10-15 staples' thick) and placing it at one end of the surface - as of now, i place it at the lower right hand corner. The laptop's magnet holds it in place. And more often than not, it does the trick and somehow diverts the static out, much like a grounding strap. Just remember to remove your staple-wire strip before closing your laptops!
3. I'm still curious as to what other metals can i place to try and divert the static. Coins or keys don't do the trick - i guess the flatness doesn't help. I wonder what would happen if i did place an actual capacitor. might collect that charge here and there.
Hope you guys find a bit of success dealing with this problem as i have.