Monitor display problem - patches of flickering dash lines
I have a HP lcd monitor HPvs17e. About six months back, due to blank screen (cannot boot), the repairman changed my nvidia GeForce grahics card to GeForce 7100GS and everything was OK. About two months back, I started getting patches of short repetitive dashed lines on my monitor display. On white background, the dash lines are pink. On other backgrounds it is different colour - example, green. It's worse while viewing videos online.
I scan my hard drive with anti virus, anti-spyware, did a disk cleanup, defrag, registry clean, and even did a system restore to a date before the problem started but didn't help at all. I even took out the graphics card to brush clean; uninstall and re-install the graphics software.
I changed the monitor, also using another video signal cable and I still get the same problems. The lines are getting worse (more). Attached is a screenshot of the display (green dash lines). Anybody can tell me what the problem is please. If graphics card need replacement, how do I choose the right graphics card to replace? Many thanks.
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Re: monitor display problem - patches of flickering dash...
It does sound as if the graphics processor of the video card has died but I suggest downloading the lastest driver for that card on the off chance it is simply a software hiccough.
If, after installing an updated driver it is still there, you might try changing the resolution via the Control Panel/Display, to see if the anomalies change in dimensions but this won't cure anything, only confirm that the card is at fault.
These cards are, on the whole, pretty reliable but your luck sure hasn't been very good.
Re: monitor display problem - patches of flickering dash...
Has anyone ever seen such? This is a screen shot of my wifes HP Laptop. Fresh driver, updated DX, hooked it to a monitor and sent this to a few friends much smarter than me on computers. Lot of trouble shooting by direction but no results yet. Anything would be greatly appreciated.
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If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
The flickering could be a sign that your lcd screen is going bad and
needs to be replaced. It could also be the video card inside the
computer. Isolate the problem by connecting another monitor to the
laptop. Borrow a monitor from a neighbor, friend, relative or co-worker
and connect it to the laptop. If the Borrowed monitor displays ok
without flickering, then your video card inside the computer is good,
but your lcd screen is bad. If the Borrowed monitor flickers like your
lcd screen did, then your video card inside the computer is bad.
Plug in an external monitor and see if the
display shows up on it. It can be any kind of monitor even the old big fat crt
monitors as long as it has a vga cable to connect to your computer's vga
port. If so that proves your video card is ok. The video will show
on most systems when you reboot without you having to do anything. Some systems
will require you to hit the FN (Function key) + F1 thru F12. Hold down
the FN key then hit the correct key for displaying on the monitor (F1 thru
F12). The correct key will normally have CRT/LCD on it or it will have
the icon of a display.
Try tapping the back of the lcd screen's lid to see if the
flickering stops, increases or decreases. It might be that the lcd
cable located at the top on the back of the lcd screen is loose.Isolate
the problem by connecting another monitor to the computer. You'll have
to take the lcd apart to get to the video cable on the back of it.
hucknannie, Power down the pc and monitor. Then disconnect and reconnect the VGA cable a few times to the rear of the pc. then turn system back on and re-boot. If your "PINK" screen still there, then you may need to have unit refurbished with new "cold-cathode-fluorescent-lamps" or have the internal "switch- mode-power supply/ccfl-inverter-supply" inspected and repaired. Yes, before you do anything, visit this web blog about HP monitors!!! http://www.lesliewong.us/blog/2005/05/02/hp-pavilion-f1703-flat-panel-display-blackout-solution/ Read and make note that people are still visiting the blog even after 4 years!! Hope this response helps. Feel free to leave a comment and also rate this response on fixya. 12fixlouie
If the power light does not turn color and stay's green on startup, it is not a power problem. It is most likely the inverter. If the unit is in warranty, send it out ASAP. Contact HP customer care by email and have the issue logged in.
If in warranty, they will send you a box by FedX second day and have repaired.
This is a 19" monitor and will not be worth paying for repairs if not in warranty.
Open your cpu cabinet.
refix your RAM memory .
Pull cmos cell for 10 minutes so all settigns are defaults.
Also remove PCI cards from PCI slot .
Let me know if you need more assistanse.
You could have a defective screen - a defective inverter or a CCFL lamp or simply the video cable needs reseating. After reseating the video cable and the problem is still there then :- To determine if you have a LCD screen or video card problem, read this and follow the instructions. Defective CCFL backlight, it may have the following symptom: Screen flashs on red/pink and off. Picture stays on in red and slowly be come normal. Picture flickering with dim display or appear black. Picture flickering on and off. All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight. Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case. The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. Check out www.lcdparts.net for parts, repair service and DIY info.
If the issue occurs in the safe mode, then I'm suspecting a failure of the LCD backlight. (It warms up and quits) Also see if video stays on using an external monitor. If it does, then the LCD is most likely failing.
If video goes out on an external monitor as well, then the Video card is failing due to overheating. Make sure all vents are free of dust (Clean with canned compressed air) and the all fans are functional (Run the fan test in diagnostics) If fans check up, then video card is failure point. If fans fail diags, replace affected fan 1st
You could have a defective screen - a defective inverter or a CCFL lamp. To determine if you have a LCD screen or video card problem, read this and follow the instructions.
Defective CCFL backlight, it may have the following symptom:
Screen flashs on red/pink and off.
Picture stays on in red and slowly be come normal.
Picture flickering with dim display.
Picture flickering on and off.
All these symptoms indicate that the LCD backlight lamp (CCFL Lamp) has reached the end of the life and all you need to do is replacing the CCFL lamp
Connect an external monitor to your laptop and power it up, if you see the normal Windows images then the video card and laptop is OK and the problem is definitely the backlight.
Dim image and/or dark display on the laptop's LCD screen indicates a faulty LCD backlight and it could be the inverter that supplies high voltage to the CCFL lamp or it is the CCLF lamp is nearly burnt out or burnt out, most likely this is the case. The inverter can be replaced easily but the CCLF lamp is more time consuming and requires soldering skills. Check out www.lcdparts.net for parts, repair service and DIY info.