Chosen Solution
The screen shows a set of lighter stripes, vertically (top-bottom), in various widths. For example, if i choose a green regular color for the Finder, then the screen is marred by a certain number of vertical bars (lighter green in this case) as if a painter had done these. Is it the screen, or the lightning of the screen (fluo lamp?) The problem appeared about 15 months of normal use… out of warranty! Bertrand Morin
could be the LCD display, or possibly the graphic card. Perhaps backlight related, but I’d only suspect that if the stripes were NOT confined to exact pixel-aligned lines. a couple questions and debugging ideas:
- are the striped always fixed in the same position? or do the come and go depending on what’s displayed?
- do they go the entire height of the display, right to both top & bottom edges?
- what happens if you change the screen resolution, in System Preferences/Displays - are the lines in the same physical position or do they “move” with the display image?
- if you take a screenshot (Cmd-Shift-3), do the lines appear in the screenshot, or not? the above might give some clues if it’s graphics card/graphics memory related or the LCD screen.
When you accepted the answer people stopped looking at the question. To try to isolate the problem, hook it up to an external monitor and let us know if the problem persists.
The stripes are not clearly defined, they have a blurred effect, pastel like. I have given up on the problem. Berrand
