Vertical line on screen (possibly stuck pixels?): likely causes?
My display suddenly developed a thin vertical line of permanently blue pixels. Looks to be one pixel wide.
The closest problem I can find here is at What causing vertical lines on the screen but my line does not grow or change colour (yet?) and what I've read elsewhere suggests the vertical line issue affecting 15/17" models is not meant to be a problem in 12" models.
The problem is not affected by moving the display. It persists when booted from CD. The extended hardware test shows no problems. Resetting the PRAM did not help.
I would be grateful for any insights but am especially keen to know whether the problem is likely to get worse; what the likely causes are; and whether it is possible to establish the cause for certain.
Thank you.
PowerBook Aluminium 12" 1.5 GHz
Mac OS X 10.4.11
[I tried to post this question earlier but the site just threw it away and I'm not sure if I have now left out anything crucial but hope not.]
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3 comentarios
Please hook it up to an external monitor and tell us if the line is showing on that also, thank you.
- de ABCellars
OK. I cannot do this at home as I don't have a separate display but I should be able to try it on campus. Maybe with LCD projection if I can find an empty classroom. Will report back with results later. Thanks.
- de cfr
I hooked the laptop up to a PC monitor using the VGA adaptor. No blue line on the external. The problem is not (yet) any worse but it is obviously no better either.
I also reset the PMU. I didn't expect this to help and I was right. (I didn't expect it to create quite so many nasty side-effects either, else I wouldn't have done it!)
Am I right in thinking this means it is (1) hardware; (2) something other than VRAM?
Thanks for your help.
- de cfr