streaks across LCD screen / external monitor

Discussion in 'MacBook Pro' started by mark2288, Feb 25, 2009.

  1. mark2288 macrumors regular

    Jan 11, 2006
    Of late, I have been getting random "streaks" across my screen when using my machine. The streaks do not go away when I minimize and maximize the program and they occur both on my MBP and on the external display I hook it up to. Check out the images I took with my camera to see what I'm talking about.

    I have a Rev A MBP with the following graphics card:
    Chipset Model: ATY,RadeonX1600
    Type: Display
    Bus: PCIe
    PCIe Lane Width: x16
    VRAM (Total): 128 MB
    Vendor: ATI (0x1002)
    Device ID: 0x71c5
    Revision ID: 0x0000
    EFI Driver Version: 01.00.068

    Has anyone had issues like this? Know what is causing it? Thanks!

    Attached Files:

  2. be300test macrumors member

    Nov 7, 2008
    bad video card or possibly bad ram.

    do a ram check.
  3. ryanws macrumors newbie

    Aug 8, 2008
    Same Issues with new Dual Link DVI adaptor...

    I am having the same issues with my new 17" MBP when hooking it up to my 30" ACD via a Dual Link DVI converter.

    Are you using a converter as well? Is anyone else having this problem?
  4. mark2288 thread starter macrumors regular

    Jan 11, 2006
    I'm just hooking it up to the external using a DVI-DVI cable. No converters in the middle.
  5. jjahshik32 macrumors 603

    Sep 4, 2006
    Is it doing it without connecting to an external display? If not then I wouldnt worry too much but if it is.. time to ship it to apple care.
  6. mark2288 thread starter macrumors regular

    Jan 11, 2006
    It does it when:
    - it is not connected to the external display
    - when connected to the external display on the external display (I have it docked so the LCD on the MBP is off)
  7. jofus macrumors member

    Feb 27, 2008
    Ugly. Haven't seen that before. Do you have AppleCare?
  8. furunculo macrumors newbie

    Jun 30, 2009
    I have exactly the same problem!

    Hi, I just got today a brand new MacBook Pro 13' and I connect it to a DVI Dell 24 inch monitorand the same streaks you have popped up. I read in other threads that the problem seems to be of signal integrity on the small miniport to dvi adapter, though most of them appear if you have a dual link 30' panel (I guess the chance of interference goes up a lot). I don't have any issues on the laptop LCD panel, only in the external monitor.

    How did you fix your problem?

Share This Page