10-11-2018 10:54 AM
I have a 2 day old T480s with out of the box OS (Windwos 10) installed. I've run all windows updates (not the October 2018 yet), and all Lenevo Updates as of 10/11/2018. When the laptop is plugged in, and reaches 100% charged, it starts acting like you are unplugging and plugging it back in. It does this rapidly, every second or so until you unplug the laptop. You can see it in the attached event viewer image. It alters between:
Event ID 105: Power source change.
Event ID 4107: A caller specified the SDC_FORCE_MODE_ENUMERATION flag in a call to the SetDisplayConfig() API
This thing is brand new, what could be causing the issues? Seems like a driver to me as it does charge fine when I let the battery drains a bit. I know there is a setting in Lenovo Vantage that allows you to change the point at which the laptop stops charging, then also sets a lower limit for when it will start charging agian. When I do this, and set the stop charge to 95% or lower, the Off/On behavior no longer happens.
Any help would be appreciated it.
Solved! Go to Solution.
10-11-2018 11:52 AM
Let me suggest the following, I don't know for sure that it will fix your issue, but I don't beleive it will do any harm.
When you click microsoft battery icon on the task bar does it show both batteries?
If you look in Device Manager are both batteries listed?
The windows 10 - 1803 update screwed up a lot of Thinkpads with two batteries.
So, if the answer to the above question(s) is NO try this:
The same thing happened to me on my T480
Here is how I fixed it:
I may have some extra unnecessary steps in here, but I wanted to be sure I didn't screw it up:
10-11-2018 12:15 PM
12-03-2018 01:50 AM - edited 12-03-2018 02:25 AM
Please go to
Intel Graphics Settings > Power Menu > Disable Refresh Rate Switching.
Whenever, the power mode switches itself, the flickering occurs.
12-03-2018 07:49 AM
Go for it.
I am having my office laptop and thats what the tech support here did.
Looks like in balanced profile, Intel graphics switch refresh rates on the go for battery savings.
As soon as the device hits 100%, it is switching itself to battery and after getting to 99%, it starts charging again.
This triggers this change and causes display to turn off and start again.