Thunderbolt display horizontal lines

Discussion in 'Mac Accessories' started by hallie289, Aug 2, 2014.

  1. hallie289 macrumors newbie

    Jul 24, 2014
    Hi guys I started up my macbook pro which is connected to my Thunderbolt display and the Thunderbolt display had a whole bunch of horizontal lines on it:mad:. I though it may be a dodgy thunderbolt cable so I went and purchased a new one but that had no effect. So I tried unplugging the power for 30 seconds and restarted the macbook, but the lines where still there. So then I left it all connected and running for a few minutes and the lines just disappeared. So i thought it was all good until later on i restarted once again and the lines reappeared. I was just wondering if anyone else has seen these problems in their display and would know what is causing it thanks?
  2. AxoNeuron macrumors 65816


    Apr 22, 2012
    The Left Coast
    Have you tried using a different thunderbolt port on your mac? Also try a different computer entirely if possible.
  3. hallie289 thread starter macrumors newbie

    Jul 24, 2014
    Yeah I used the thunderbolt cable I purchased plugged in the other port in the rear of the display, and I just tried it with another macbook pro in the house and the issue still occurred

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