Hi all
I have a problem with my computer, see signature for specs, which started out as a
minor irritant, and has now evolved into a sleepwrecking issue. I have tried to search
the web to find people with the same problem, but to no avail. I hope that somebody,
with better hardware knowledge than myself, can figure out what the problem is.
Description of the problem:
I have green pixels on the screen organized approximately on a horizontal line.
They are green on blue, black, red, and green backgrounds.
On white backgrounds they usually do not appear. When they do they are purple, not green.
The position of the pixels are constant, although they vary slowly in number,
turning on and off (in 3D they oscillate more wildly).
Lowering the resolution pushes the pixels down.
Moving or scrolling windows leave green trails, never purple.
Purple pixels do move with the window but the trail is green (on black text for example)
When hardware acceleration is turned off (Properties->Troubleshooting),
pixels still appear as before but they leave no trail in windows.
Green pixels also appear during bootup, before XP is loaded,
but here they are entirely on a horizontal line.
The problem evolved slowly during the first weeks after I received
the computer and the GPU (early september).
After about 4-7 weeks it peeked, and has been the same since.
On occasion it flashes colours during bootup, but not in XP.
I have taken some screenshots (all except Pic7 are shot in 1152x864)
The bare green pixel problem:
Pic1.
Moving a window around leaves green trails, on blue background:
Pic2.
Moving notepad around leaves no trails on white background,
only the black text is coloured:
Pic3.
The view from EVE. (Here the pixels are blinking):
Pic4.
Mixed green and purple pixels on a checkboard background:
Pic5.
Purple pixels on white background:
Pic6.
The pixels in 1024x768 (In 800x600 the green pixels do not show):
Pic7.
With catalyst drivers and CCC uninstalled. Pixels organized on a line.
(During bootup the green pixels are similarly organized.):
Pic13.
The entire PC was bought from one vendor, except for the
GPU which is bought from a second vendor. The entire PC has been tested by the first vendor, and the GPU has been tested by second vendor. The first vendor presumes the fault lies with the graphics card, and the second says the graphic card has no faults.
The PC has otherwise absolutely no problems. It runs everything without breaking a
sweat, and I get no 3D artifacts. It is entirely a cosmetic problem, and amounts to
exactly what can be gleaned from the screenshots.
Does somebody have a clue as to what is wrong?