Windows 8 and 8.1 Forums


Random rapid screen flicker

  1. #11


    I live in a single residence in the Los Angeles area...the issues you bring up are beyond my competence...this problem doesn't affect my wife's computer in another room, but apparently only in my home office...i could run an extension cord from my office to an outlet on the other side of the house, where she uses the computer, and see what happens...here are a couple of sub-panels besides the main panel here, so maybe this requires an electrician to check out for me.
    Not sure what to do first....I had an APC for over three years, and replaced it last month with the cyber power UPS, but theproblem was happening with the APC as well.

      My System SpecsSystem Spec

  2. #12


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    I would have an electrician check thins out. Especially since you live in LA, and the air there can wreck havoc on outdoor panels. I use a APC 1250vA/740 watts one on my network gear. It lets me look at incoming and outgoing volts, plus how many "events". You should have an electrician put in a whole house surge on the main panel, or put this Leviton between the meter & meter pan. Make sure you get the correct one, or have the electrician you hire to do it. Some electric utilities will install them for home & business owners, then tack the charge on your bill to pay it off.

    There is a 4-jaw & 5-jaw version. Your utility will know which one you will need. Amazon.com: Leviton 50240-MSA 120/240 Volt 200 Amp, Secondary Surge Arrestor, Surge Protective Device 4 Jaw Socket Meter Socket: Home Improvement

    As for checking voltage, most local libraries rent out Kill-a-watt units for their customers to use, to check what they are using on various appliances. You just plug it into the outlet, then plug the appliance in.

    Checking the voltage with a meter is something that every home owner should know how to do. It is working inside the panels that you have to really know what you are doing. Otherwise if you ground yourself between one of the incoming legs or both and the Neutral or ground, you can kill or injure yourself.

    I would shut off power to the house, go around and check every outlet and switch to see if they are "Backstabbed". That is when they just push the wire into the back, and the wire is held in place by a set of springs that push a jaw against them. They should be attached by the screws. GFCI outlets have a screw that pushes a clamp against the wire.

    The biggest culprit is Aluminum wiring when you run into this kind of issue, along with backstabbed outlets. You can also check inside the panel for loose wires to the breakers, by flipping off the main breaker and use a flat head screw driver to tighten any that are loose, along with on the Neutral & ground bus bar.

    I just use a $20 Sperry DMM for checking voltages when I find an issue. Otherwise it is just my 120/240/480 if I am looking to see if there is power or not at an outlet.

    Having bad connections or brownouts, along with the utility controlling power to the home, can cause more issues then people realize.
      My System SpecsSystem Spec

  3. #13


    Your detailed comments much appreciated Broe23...right now I have the computer/monitor on an extension cord plugged into outlet on other side of the house....if that works, than I believe the problem has to do with a subpanel located on south wall of house, and main panel is on the north side...the next step would be to get an electrician to check this out as you describe....
      My System SpecsSystem Spec

  4. #14


    Just now got the screen shake with the extension cord plugged in to another outlet on other side of house...am wondering that since this dosesn't happen to my wife's computer, maybe there is some malware or trojan or something in my data that is causing the problem.....windows defender isn't picking it up....is there any good debugging program I might want to try first to see if there is indeed some infection that has caused this problem on a previous computer and now this new one?
      My System SpecsSystem Spec

  5. #15


    Posts : 2,130
    Windows 8.0 x64


    Would it be trivial to try the wife's computer in that spot? If it's some kind of RFI then her's would likely show some symptom.
      My System SpecsSystem Spec

  6. #16


    good suggestion...
    for the unenlightened, what is an RFI?
      My System SpecsSystem Spec

  7. #17


    Posts : 2,130
    Windows 8.0 x64


    what is an RFI?
    Radio Frequency Interference.

    When I was a kid the spark plug wires in cars were just rubber coated copper. Every time a car went by outside on the street the TV picture got ripples. They passed legislation that autos had to use suppressor wire. The inside is like strings impregnated with carbon. No metal to emit radio/magnetic waves. This was in the pre-cable days. A "rabbit ears" antenna on top of the TV etc..
      My System SpecsSystem Spec

  8. #18


    Central IL
    Posts : 3,468
    Linux Mint 17.2


    Not a Trojan or malware issue. You need to read what I posted, regarding having the electric checked out, along with what the incoming voltage is at the Meter Panel and the Breaker panel.
      My System SpecsSystem Spec

  9. #19


    I will be following up on all these good suggestions. Thanks again.
      My System SpecsSystem Spec

  10. #20


    Posts : 21
    Windows 8 Pro & Linux Mint


    Have you got any cordless phones nearby?
      My System SpecsSystem Spec

Page 2 of 4 FirstFirst 1234 LastLast
Random rapid screen flicker
Related Threads
So I had tried to fix this for months. I have tried various forums without any replies or help. I purchased an Apple retina Macbook Pro and put Windows 8.1 on it. OS X does NOT flicker, but Windows 8.1 will flicker every time I login. Occasionally I will get a brief period of 10 seconds where it...
Good day, Although this is something minor, it's starting to annoy me a lot. Recently, I noticed that every time after I log into Windows 8.1 with my password, the screen flickers for like a second. I did not have this problem before and have no idea what might have changed to cause this. I...
HI all i have a pny geforce gtx 660ti with the latest nvidia drivers and when i'm watching videos with netflix app on windows 8.1, I will drag the app to my high def TV and watch them there, as soon as i'm done watching and i close the app my main monitor will flicker briefly and once that is done...
Solved Rapid Start is Kapoot in General Support
I have had win 8 on a Dell PC for several months. In the last couple of months, there is about a 2 minute hang after startup or return from sleep. I just got a message that "it appears that Intel Rapid Start Technology is not installed". Can someone tell me how to install it? Has anyone...
My hardware specs are available here: Blue Phantom | MegaGames By default Windows has Faster starting on My UEFI also has a rapid boot function which I set to on (But not ultra rapid which requires a GPT formatted HDD/SSD) However on two occassions this has caused the system to lock...
Hello guys, Recently I Recieved A Laptop in gift which I owned in the past which is A Dell XPS 15-L521X. It was running all good but suddenly Today morning when I pressed the power button and it boot through the Dell splash screen and after that It booted normal through the Windows 8 boot screen...
I just installed the Intel GMA 500 graphics controller on my Viliv S10. It had been running the Microsoft Basic Display Adapter, which didn't detect the screen's actual resolution but instead ran it at a slightly lower and distorted resolution. At the lower resolution running the basic display...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook