Currently Being ModeratedDec 27, 2012 4:47 PM (in response to baltwo)
Collected the machine yesterday and the following parts were replaced...
- Display, LCD, 21.5-inch
- Board, LED Backlight
- Card, AirPort, Europe
Took the machine out of the box and noticed that the front pannel was chiped in the corner. Took it back today to have another pannel fitted. Found out that Apple used refurbished parts so I now have a second hand front pannel with scratches on it as well as a few chips on the aluminium. My machine is now worst than it was before it went into the store but the store refused to replace the unit. The screen still flickers and now it looks worst as the right side is washed out. I cannot believe they used refurbished parts on a product that is still in waranty, I have received better service from third party retailers regading Apple products. Apple make great products but I will never buy one directly from them again. What a waste of £1250!
Currently Being ModeratedJan 4, 2013 7:11 PM (in response to 3gs LS)
It seems to me to be an electrical design flaw where some grounds are not isolated or something. Here is what I tried, and I would love to see if someone else can repeat my experience. To be clear:
- Plugged the display into a surge protector and used the display to power the MBP. Flickering was intolerable.
- Plugged the MBP into the wall, and plugged the display into the surge protector which was plugged into the wall. Some minor flicker.
- Plugged the MBP into a surge protector using its power adapter with the surge protector plugged into the wall, and plugged the display into a the wall. No flicker.
I tried multiple types and brands of surge protectors with identical results. Basically, if the display is plugged into a line conditioner or surge protector, then it flickers. If I power the MBP with the display's connector, the flicker is even worse no matter how the display is powered. If I plug them both into the wall (and do not use the display to power the MBP), the flicker is gone.
Isolate the power supplies, and let us know if that helps. I really hope it does, I really feel your pain 3gs LS.
Currently Being ModeratedFeb 25, 2013 1:50 AM (in response to 3gs LS)
My imac is 4 years old and the screen doesn't just flicker it goes completely dark with a flickering brightness in the top left corner, this continues for a maybe 20 seconds or so and then the screen settles down, it only occurs on waking up or booting up.
Any ideas welcome.
Currently Being ModeratedMay 3, 2013 3:57 PM (in response to 3gs LS)
Ok... just spoke with Apple.... I'm running a MacBook Pro (mid 2009) w/ an Acer (p221w) Monitor. Everything worked fine in Leapord and it was the main reason why I NEVER upgraded to Snow Leopard cause I had this problem then....
Try changing the resolution...
- Apple Menu > System Preferences
- Gather windows if you must and choose your external monitor
- For Resolution select "Scaled" and choose a different resolution size. 1680 x 1050 flickers on my monitor but 1600 x 1000 w/ a refresh rate of 60 Hertz worked fine.
Play around until you find the combo that works for you!
Hope this helps!
Message was edited by: jeaneen because typos suck ((shrugs))
Currently Being ModeratedFeb 4, 2014 12:03 PM (in response to 3gs LS)
Well, I know this is an older thread, but it still drives me crazy. For a few days I'll be fine, then it will flicker. Turning the brightness up basically burns my retinas even with glasses on, soooo....I thought I would post a rather odd workaround that is helping me.
- Make a big, completely black image about the size of your screen (or do a web search for "solid black" and download one). It does not need to be exact.
- Install Geektool from http://projects.tynsoe.org/en/geektool/
- Launch Geektool, and drag the image geeklet to your desktop
- Set the path of the image to be the background you made
- Set the opacity to about 33%
- Choose the "Stay on top" option
- Adjust the size and position as needed
So all that basically leaves a semi-transparent image as an overlay to your screen, effectively dimming it. Now you can turn your brightness up and not fry your eyes with the brilliance of your 8 million lumens cinema display.
It's obviously not ideal, but it seems to be working, and it's easy to disable as needed.