Display intermittent flicker

  • Thread starter Thread starter Charles Crawley
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Charles Crawley

Hi,

I am having a problem with my parents' PC and cannot work out what is wrong.
They have a PC with the following specification:

Abit KR7A motherboard
AMD Athlon 2400+
512Mb RAM
Sapphire ATI Radeon 9200 64Mb DVI
Logitech Wireless keyboard
Logitech MX700 mouse
LG Flatron L1710S TFT Monitor connected with DVI cable

They have the latest 4-in-1 and Catalyst drivers, but intermittently the
screen will flicker off and then back on for no apparent reason. It almost
seems as if there is a loose connection somewhere, although this is not the
case. When it does happen, it seems to be when the mouse is moved, or
something changes onscreen. If the PC is just left, nothing flickers at all.
It's all rather baffling.
Does anyone have any ideas?

Cheers,

Charles
 
Reseat the video card and connectors. It is possibly a bad connection or
broken wire in the video cable.
 
Do you have a wired keyboard and especially a mouse that you can try with
their computer?

Gary
 
The problem is static electricity. I happens to my Liquid Video 15" LCD all
the time. If I slide my arm and mouse across the desk top, I can get the
monitor to momentarily black out. It immediately returns to normal as a
second or two. My Sony monitor does not share the same problem. I think my
chair pad is the origin of the static.

I am used to it and feel there is nothing to worry about. Enjoy your
computer!!!!

Regards, Bill
 
billp117 said:
The problem is static electricity. I happens to my Liquid Video 15" LCD all
the time. If I slide my arm and mouse across the desk top, I can get the
monitor to momentarily black out. It immediately returns to normal as a
second or two. My Sony monitor does not share the same problem. I think my
chair pad is the origin of the static.

I am used to it and feel there is nothing to worry about. Enjoy your
computer!!!!

Regards, Bill
Click to expand...
You may be used to it, Bill, but your PC is extremely vulnerable to static
discharges. I would recommend sorting it before you find you've damaged
something rather expensive one day! ;-)

patrickp
 
I'll get them to try that, although I had already reseated the card a few
times myself. I have also asked then to try the VGA cable instead of the DVI
one to see if it makes a difference.

Cheers,

Charles
 
Yes, I can certainly get them to try one. Why do you think that the wireless
keyboard and mouse might be a problem? Surely they shouldn't be causing
interference? I will get them to check that the receiver station is a fair
distance away from the monitor etc though.

Cheers,

Charles
 
patrickp said:
think
You may be used to it, Bill, but your PC is extremely vulnerable to static
discharges. I would recommend sorting it before you find you've damaged
something rather expensive one day! ;-)

patrickp
Click to expand...

I agree with Patrick. Although, I'd probably disagree that it's static
causing the problem. Whatever is, it isn't right and you should find the
cause. As am I. I have just tried to fix the problem and it's annoying me. I
dread to think how annoyed my parents are with it!

Cheers,

Charles
 
They can cause interference. It's probably not common, but it happens to me
at work sometimes. I use a dual monitor setup at work for CAD and the
problem just sort of crept up on me. I didn't put it 2 & 2 together until I
had to go back to a USB mouse one day when I forgot to recharge my MX700
battery. The problem stopped and I realized it started about the same time I
got the cordless mouse.
In my case it's just some very faint dark lines that scroll on one of the
monitors (never the other) when the mouse is moved (on either monitor), and
it doesn't happen all the time.
I just figured that it would be an easy thing for you to check out, and you
never know :-)

Gary
 
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