Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: Video card interferences on screen

07 Jan 2013   #1
Derek10

Windows 7 Ultimate 64-bit SP1
 
 
Video card interferences on screen

My video card shows some EMI or EMI-like interference, faint diagonal wobbling lines on screen in VGA output (my new monitor is VGA). The monitor and cable are fine as they do not appear in the onboard one and my laptop's VGA output, and they appear on other monitors/cables as well. It's definitely the video card VGA output or some interference inside the computer.

The lines are in the BIOS too. They are more noticeable on darker colors. They do not appear on screenshots.

Is there a way to fix this or I have to buy a new video card? Thanks


My System SpecsSystem Spec
.
07 Jan 2013   #2
ganjiry

Win7 Home Premium x64 SP1
 
 

Hi Derek
Some kind of picture would be really good. I know you said that the artifacts/interference's don't show in screenshots but do they show up if you take a picture with a camera or phone?
How are you connecting the cable? By this i mean are you using any type of adapter( DVI to VGA) or are you connecting a standard VGA cable from GPU to monitor?
Do you have a friend that has another monitor you could try? Preferably one that connects via the DVI/ HDIM or DP outputs..
My System SpecsSystem Spec
07 Jan 2013   #3
Derek10

Windows 7 Ultimate 64-bit SP1
 
 

Hi Ganjiry many thanks.

Unfortunately my phone camera can't pick up them at all, they are wobbling fast and faint.
Here a image, not mine, that shows a similar issue, but in my case the lines are tilted downwards, way less noticeable, more thinner, and moving fast.



I have a direct VGA cable my video card has a VGA port besides DVI and HDMI.

I've tried two monitors and cables and the same issue appears on them, On the other hand the onboard GFX which is VGA is fine on all monitors as well as the VGA output from my laptop. The lines don't appear over DVI, but my own monitor doesn't have it.
My System SpecsSystem Spec
.

07 Jan 2013   #4
Derek10

Windows 7 Ultimate 64-bit SP1
 
 

Also, don't know if related or not but my video card doesn't turn off the monitor when I shut off the computer or when Windows put it to sleep mode. The message check cable signal appears indefinitely on it and have to shut it down manually. Again, with the onboard card and same cable, the monitor sleeps fine.
My System SpecsSystem Spec
07 Jan 2013   #5
ganjiry

Win7 Home Premium x64 SP1
 
 

Ello chap.
Looking at the pic i would have said it could have been driver issue's but if the lines don't appear when using a dvi monitor i don't think it is. It's more than likely just a problem with that output.
I've had a look through the specs of your graphic card and the dvi connection is able to send an anologue(VGA) signal. So for testing purpose's you could get a DVI to VGA cable StarTech.com 3 m Video cable 15 pin HD D-Sub (HD-15) - male - 17 pin analogue DVI - male and try your VGA monitor in the DVI output. It's better to buy a cable rather than a DVI to VGA adapter as the adapters can be unreliable.
I will do some googling and see what i can come up with regarding the possible failure of the VGA output. (Not saying that is the problem though)

Edit: Have you recently updated your gaphic cards driver's at all?

.
My System SpecsSystem Spec
29 Jan 2013   #6
Derek10

Windows 7 Ultimate 64-bit SP1
 
 

Sorry for the late reply (delayed to get the adapter)

Finally it solved the issue, seemed to be a bad port on my video card.
My System SpecsSystem Spec
Reply

 Video card interferences on screen




Thread Tools




Similar help and support threads
Thread Forum
unable to get picture on screen after putting in video card
I have a older pc the onboard is really weak. it was meant for win xp but I have win7. I just got a NVidia GeForce FX 5500 250mb 128bit PCI TV+DVI. it came with the driver disk cause I got it new in box, when I put it in and start the pc I get nothing on the screen from onboard or the card. I tried...
Graphic Cards
USB external video card or AGP Video Card for Windows 7?
Hello everyone. I currently need a new video card for my Gateway e4610 small form desktop PC because my on-board graphics have apparently gone bad. My display is slanted or out of alignment. And after testing different monitors, hard drives, moving the PC to different rooms, checking wires,...
Graphic Cards
Error on video card after startup, screen turns fuzzy then goes black
ive recently been having this problem for the last few days i thought i fixed it but it started happening again. not sure whats wrong so please help, thanks. heres my minidump ask me a question if needed
BSOD Help and Support
error on video card, screen turns fuzzy then goes black
ive recently been having this problem for the last few days i thought i fixed it but it started happening again. not sure whats wrong so please help, thanks. also this happen after i installed black ops on my computer off of steam. heres my minidump
BSOD Help and Support
Blue Screen, nVidia video card?
One my the fans on the GeForce is not working. Is there any fix? Perhaps underclock? Thank you for any help.
BSOD Help and Support
Display Drivers/Video Card and Monitor Screen
So, I got a new video card at work to install and nothing will show up when I plug it in. I can go through the computers VGA and it works fine, but when I go to the video card only a black screen. Any help? Can't download drivers either, only black screen upon boot.
General Discussion


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 19:23.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App