Black screen when going for a second AC adapter / CC is plugged or unplugged.

Hi all

I tried to contact the HP support with the issue, but their technicians say that this problem is a problem so here goes from Windows:

I use PC HP ProBook 4540 s (Energy Star) with Windows 8 x64bit. All of my drivers, BIOS, and compatible HP drivers are updated with the latest versions of the Windows updates. The problem I encounter is that the goes to black for a second or two screen when the power adapter is Plugged-in or unplugged.

Personally, I think that the problem is related to graphics switchable but don't know how. So far the HP gave me and I tried the following, but to no avail solutions:

HP has proposed the following

1. check and see if the problem persists in safe mode

Result: There is no such a problem in safe mode. Nothing happens when the power adapter is plugged in or unplugged. Screen does not change its brightness or black,

2. update your BIOS to the latest version

Result: BIOS is already up-to-date

3 follow these steps:

(a) turn off PC

(b) remove the adapter and any attached external devices

(c) remove the battery

(d) press and hold the Power button for 20-30 seconds (this will ensure to remove any residual current)

(e) turning on the PC using only the AC power

Result:  Has not made a difference, the problem persists

Share there is a problem with my laptop, its brand new I bought it last month. I would appreciate a solution and please do not ask me to run to troubleshoot because it has not helped OR nor did reinstall Windows 8 makes all the difference. Thank you

I just bought this laptop yesterday and I had the same problem as you.   But I think I found the solution.

What you need to do is 1) go into your power settings, by clicking on the icon of your battery.

(2) then choose change settings of either "star power balance and energy" or "Energy saving" matter which.

(3) once you do this, go to "change advanced settings" (must be higher where you adjust the brightness of the screen).

(4) then go to the left and choose the option that says "Intel HD graphics" and click there and CHANGE the setting to 'maximize the battery' and change to 'optimize performance '.

It was fixed without 'maximize battery' on mine.

Once you do this, the problem will be completely solved!

I hope this helps.

Tags: Windows

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