HP Probook s 4540 screen flashes plugging / unplugging AC adapter

Similar Questions

• Why my screen flashes not black when I plug or unplug my charger?

  Whenever I plug the charger the screen flashes black for a second, but goes back to normal later and accused the computer for a few seconds (I thought that because my music or videos jumps on WMP). The same thing happens when I unplug the charger.  I didn't used to have this problem, it started happening when I reinstalled windows xp pro, or updates of packages of 2.  But the previous times, when I reinstalled windows, it never gave me this problem.  The first time that my brother reinstalled Windows, it has had this problem and recently just reinstalled windows and it doesn't have this problem.  In addition, we have the same laptop right and we used the same Windows XP Pro. disc.

  I know not how to set up all my information, I guess its called BIOS, but I have a Dell Latitude D531, there AMD Turion 64 X 2 TL - 56, 1 GB of RAM, using SP2, using a loader and OEM (I highly doubt the battery and the charger are the problem, but I thought I should mention that).

  If you need more information, I am more than welcome to do so long that you're ready to tell me how to find if I have trouble.

  Any help will be much appreciated. Thank you

  To help others who are looking for. Posted by Shafimuhammad here:

  http://en.community.Dell.com/support-forums/laptop/f/3519/t/19435392

  Diagnosis

  The video "Refresh" is switching between 60 (on food) and 50 Hz (on battery), and the screen goes momentarily empty.

  Solution

  So what about current alternative, office > right click > properties > settings > advanced > monitor. Here, under the display settings, set the refresh rate of the screen at 50 Hertz. After you apply these settings, the flashing problem gets fixed.

• Control LCD screen flashes on and outside

  Hello
  I have a 6 yr old HP w15e LCD monitor, it is quite old. But recently, it's showing strange things. Whenever I turn on the power to the monitor with or without the CPU video input, continuous screen blinking on and outside (I think there are two seconds between the two slot and power off).
  I tried different power cables, but still screen flashing. So help me to record this thing.
  Thank you.

  Hello @shan678,

  I understand that your w15e HP LCD monitor continues to blink off and off and you seek help to fix. I provided you with a few steps, you can try below:
  
  Step 1. Unplug the power cord at the back of the screen and the wall
  Step 2. Press and hold the power button for at least a minute
  Step 3. Plug the power cable in the monitor, and then to the wall outlet (not a power bar or surge protector)
  Step 4. Press the Menu button on the monitor
  Step 5. Navigate to the factory reset option and select
  
  If the steps above did not resolve your issue, you can try the monitor on a computer or other device to see if the problem persists. If not I think it would be preferable that you contact HP Support for service options.
  
  Thanks for posting on the HP Forums. Have a great day!

• HP Probook s 4540: fingerprint reader does not

  Hello

  Problem: fingerprint - Windows journal reader under does not have the ability to connect via the fingerprint reader.

  Overview: after installing the drivers of the fingerprint on the HP site and thanks to the HP protection tools to register successfully to fingerprints, I tried to log in via this method, but the Windows Connect screen does not display this option. Device Manager correctly identifies and shows the fingerprint sensor - however, the Control Panel does no detection of biometric devices.

  I really need help with this problem. Details of what steps I took trying to make the scanner work are given below.

  Specs:

  1) 4540 probook s

  (2) Windows 7 64 bit

  (3) i5 - 3210 m, 1 GB Hd 7650 m, 4 GB at 1333 Mhz, 750 GB 5400 RPM, VFS 491 fingerprint reader.

  Details of the problem and the steps of my work to install the drivers:

  After a new installation of Windows 7, I went on the site of HP driver to download the latest drivers for Probook s 4540:

  http://h20000.www2.HP.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=5229457&...

  I installed the drivers in roughly in this order:

  drivers ethernet controller 1) realtek.

  drivers audio 2),

  (3) the chipset and USB 3.0 drivers (but not the Intel MEI driver)

  (4) Intel video driver: a problem such that the pilots were not allowed to install. After you disable switchable graphics in the bios, I was able to get these drivers to install.

  (5) AMD video drivers: installed after graphic driver intel HD - installed but Catalyst Control Center was not displayed. Then I reactivated switchable graphics in the BIOS, re-installed these drivers and CCC was now available.

  (6) support for HP keyboard shortcut

  (7) HP Universal camera driver

  (8) fingerprint sensor fingerprint validity

  (9) Synaptics Touchpad driver

  (10) Atheros wifi & bluetooth

  (11) Jmicron card reader

  After driver installation, I installed the HP protection tools. According to request a reboot of the PC, which I did-, he asked for the setting up security etc... Part of this pocess was the registration of fingerprints - successful. However, log off / restart of windows, an option to connect with the fingerprint reader does not appear in the Windows login screen.

  I open the control panel and found there wasn't that no biometric device only tab, even if the Device Manager showed biometric sensor, device and validity (VFS 491). I then uninstall HP protect tools and driver validity sensor fingerprint, and made sure that these services are running:

  -Credential Manager

  -Remote Procedure Call (RPC)

  DCOM Server process Launcher-

  RPC end point mapper-

  -Windows Biometric Service

  Plug-and-Play

  Then as suggested in another post on the forum, I installed first of all this:http://ftp.hp.com/pub/softpaq/sp55001-55500/sp55109.exe , then the drivers of the validity of 4540 s drivers page, then HP protection tools.

  After the reboot HP protect tools as before to register my fingerprints, but still no windows login prompt came to connect with fingerprints. However, a change after installtion of http://ftp.hp.com/pub/softpaq/sp55001-55500/sp55109.exe that has been in Control Panel it is now a tab for biometric devices. However, it is said that windows did not find it all installed biometric devices. A picture is attached showing the Device Manager and Control Panel!

  Please HP offer a solution. Thank you!

  

  OK problem solved. I don't know if it is related to the HP windows 7 system essential updates driver installation and Intel MEI or not - but I install these.

  What has really worked probably was it - > install the drivers of fingerprint and then the HP protection tools. Once rebooted, open HP tools protect, then return to the administration in the lower right corner-> the administration Console-> increase of security system-> tick windows login security and your done. Now, you will be able to connect through fingerprints registered.

• Now 23-d044 - installed MXM video card - HP Envy screen flashes red green blue black

  Hello

  I'm a 23-d044 I wanted to do the update/install video card instead of using the integrated graphics card.  I tried two different cards, a nVidia GeForce GT 540 m 2 GB and a part of HP AMD card #707804-002.  In each case the applied heat sink was part HP #694456-001. In each case, whenever I go back to the PC and it works, the screen flashes red, green, blue, black, white to infinity. I have read these and other forums indicating that this is a fault with the GPU, but I find that is unlikely given that I tried two different cards. I thought that maybe the MXM connection on the motherboard, but on the original motherboard power connector was defective, I have since replaced the motherboard (about 2 weeks ago) with the same part number. I downloaded both the AMD and nVidia drivers the most recent for each card (while running the integrated graphics card), but not joy.  Anyone have any ideas?  Thanks in advance for the help!

  Sean

  Sean, I had the same problem too.  I finally thought to it.  Just above where the grafics card go is two connectors and one of them has a plug in there.  above the connectors, said uma_lvds, the other says MXM_LVDS.  Swap the power cord of the uma_lvds to the mxm_lvds.  This will fix the problem and you will be running.

• HP ProBook s 4540 - we found that all the disks during the installation of Windows 8

  I have some problems (re) - install Windows 8 on a ProBook s 4540.

  The laptop had a virus so I decided to reinstall Windows 8. I bootet with a Linux rescue CD and made a backup of my personal data. Then I erased the hard disk (using Gparted) (except the first two partitions (System and boot) and with the HP Windows 8 DVD rebootet.) I see always the reader and various partitions, but Windows won't let me install on any of them. So next time, I tried to create two partitions with Gparted directly, but now, I am not at all a player and get after the error message:

  We have found all the disks. For a storage driver, click on load a driver.

  I googled a bit and I tried to switch between IDE and AHCI in the BIOS, but that did not help. Then I copied most of the pilots of the Assistance Center on a Flash drive and walked to the proper drivers, but no luck. I also tried to look on the Application and Driver Recovery DVD provided with Windows 8 directly but no luck there as well.

  I'm a bit at my wits end now, any help would be really appreciated.

  Don't know if it's the Board correct, please move if not.

  I deleted the partition windows 300MiB and now I can see and select some readers in windows install again. The problem is that windows will not continue because of various errors. (See attachments)

  The problem seems to be that my disk is dynamic. I found a guide to convert the hard drive back to base. So my question is, this will help her or my HP DVD awaits the dynamic hard disk?

• Increase the resolution on the ProBook s 4540 with AMD Radeon 7650 M

  I have a ProBook s 4540 with the AMD Radeon 7650 M card.  The graphics card and drivers are up to date with the latest settings on Win7 Pro 64 bit machine.  I installed the I want to know if I can increase the native resolution of the Catalyst Control Center installed and switchable graphics on in BIOS (F.40).

  I use my machine for graphic design & website and you want to increase the native resolution of 1366 x 768 setting above.  I know that the CCC will allow you to change performance for games and other programs, but I'm looking for the resolution.  The Basic setting for my office lists only the graphics card Intel for the resolution settings.

  It left me speechless.

  Thank you!

  Figured it out for anyone who needs help with this.

  Resolution max screen 1366 x 768 even if the video card will support more resolution, it cannot for the screen built in on the laptop, only for screens outside.

• ESC out do not full-screen flash in OSX Lion

  So I just updated my os to the Lion on a new installation, and the flash gives me problems in mode full-screen. whenever im watching something in full screen and want you close it by pressing the ESC key does not close the flash full screen, I've tested this in Firefox, Safri and Chrome with the same result every time.

  I looked on the net and not found someone elses posts on this question if im give and ask for help (which is rare for me). There are some keyboard shortcuts that seem to do the same job but its not clear why Frank pressing the ESC key does not close it.

  the keyshorts that act as: SHIFT + ESC, Ctrl + Esc and Alt + Esc

  Im running, Firefox 8.0.1,, Safari 5.1.2 Chrome 16.0.912.63 & Flash plug-in version 11.1.102.55

  Thanks for any help.

  Found the solution for everyone with this problem.

  It was an application called Simpleshare box I had installed, he prevented the ESCAPE key, all working together, not only on the Flash.

• Screen flashes while taking pictures using the Auto flash and front camera on

  Device: iPhone 7 more

  iOS: 10.0.2

  Question: Screen flashes with blank white light while taking the photo using a front camera with the flash light on which is so annoying

  Note:

  After taking the photo, the photo is visible and doesn't have any problem

  I could be wrong, but I think that this is how flash works for the front facing camera.

• iMac screen flashes black in Photoshop CC

  Hello

  I am posting this as well in CC Adobe and Apple forums as I do not know where the problem lies, but I would really appreciate this problem:

  I use Adobe apps on an iMac CC brand new (still in time to get the full refund). If you use Photoshop CC (2015.5) the entire screen (not only the Photoshop window) goes black for about half a second when any icon tool exceeding a certain size of pixel passes of the tool to the pointer icon icon or vice versa.

  This happens for example when the icon of the fate of the area of the image on the menus or the dashboard or window, or when it comes in and out of the right click menu change brush size. Any situation when running the tool pointer or pointer tool. It does not always happen, but it happens most of the time, maybe the type of pointer movement has something to do with it, well it happens with fast or slow transitions.

  The problem only occurs when the brush is superior to certain dimensions - never when it is less than the critical size. The critical size may vary depending on whether the Photoshop was opened for a while or just launched (I don't know too much about). There is also an interaction with the hardness of the tool.

  Thus, for example:

  On the blur to 0% hardness tool, the screen flashes black when will top 80 pixels-never less than size. 100% hardness, it flashes from 64 pixels. Same for the Brush tool, Eraser, etc. I think it happens with any appreciable tool (don't have not tried them all).

  I use a Wacom Intuos PS and the Magic Mouse from Apple. The problem occurs at the same time if they are both connected together or separately.

  The problem occurs even when Photoshop is the only application running.

  Please help, because it is almost unusable now.

  Specifications of the computer:

  iMac, retina 4 k, 21, 5-inch

  Processor: Intel Core i5 to 3.1 GHz

  Memory: 8 GB 1867 MHz DDR3

  Graphics card: Intel Pro Iris Graphics 6200 1536 MB

  The Photoshop memory usage is set to default values:

  4500MB (70% of available memory)

  4 levels of cache

  Tile size 1024K cache

  I just downloaded and tried the oldest version of Photoshop - CS6 - available through my driver's license and the problem is exactly the same, this is not limited to a particular version of the CC in Photoshop.

• 2008 mac book pro screen flashing folder with question mark at startup

  2008 mac book pro screen flashing folder with question mark replaced boot hard drive and cable, continues to do the same.  any ideas to fix?

  Start your Mac by holding down the button Option. The should launch the window of Boot Manager where you can select the startup disk, and then click on restart.

  How to choose a boot on your Mac - Apple Support drive

• Hi, my screen flashes during playback of movies from Netflix

  Hi, my screen flashes during playback of movies from Netflix. It happens with other applications or when I play DVD. It begins in about 5 seconds in movies and it happens about every 4-5 seconds. The screen turns white for about a second, then it shows some horizontal lines, and it goes back to normal. And after a few seconds, he begins anew. I also noticed it always happen when I move my mouse during playback of a movie at Netflix.

  My PC is HP Pavilion 17 inch. I3 Haswel processor and Intel graphics card built-in. 8.1 to win

  I've updated all the drivers, but nothing helped.

  Any suggestions?

  Thank you

  Dmitry

  Figured out. Change refresh rate of 60 Hz 40 Hz p p and it solved the problem.

  BTW, HP helpdesk is completely useless... He does not call them – at least their 'free' in India support is completely incompetent.

• Screen flashes black when playing games

  When I play the games. The screen flashes black for a few seconds then goes back and re-offend?

  After reading this description of problem a single sentence, it is not easy to tell a lot about your problem.

  Perhaps you should tell us something about your machine, pre-installed OS, display driver you are using and of course, be a bit more detail on this subject.

• Satellite M300 - screen flashes white

  Toshiba Satellite M300 on 18 months old (using Windows 7). Display has had intermittent problems. Screen flashes to a white screen. Now if the lid is moved while he was working, "white" screen completely and returns to normal when returned to 'the sweet spot '!

  Have not yet tried another monitor. Driver is up-to-date. Assuming that maybe it's a "bad connection". Use turned off with the closure of the lid that changed tonight.

  Any ideas? :)

  Hi KezRev,

  Theoretically, it could be a problem of connecting cable or internal problem display but you should test another monitor first. Just connect an external monitor to check the image here.

  If the external monitor works properly it s the LCD cable internal or visualize a malfunction. So, contact a service provider and allow technicians to check your laptop. They can fix this problem and order new parts. :)

• How to activate bluetooth on HP ProBook s 4540?

  Greetings,

  I recently bought this ProBook s 4540. I tried to understand how active my bluetooth. I have tried several drivers but ended up with nothing. So what I need is an instruction step by step to activate my bluetooth.

  Help for Windows 7 Ultimate 32 bit.

  * Tried so far this drivers

  1. http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareDescription.jsp?lang=en & cc = za & prodTypeId = 32...

  The end of the installation with an error message saying device bluetooth is not connected.

  I would be greateful if someone can give me an instruction step by step to install the bluetooth driver.

  Thanks for your reply.

  Sorry to bother you, it is built in bluetooth on my laptop. Software Bluetooth Ralink Driver seems to work perfectly.