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I have an MBP 2012 model. I have Dell E2620HS and connecting it with an HDMI adapter via the Thunderbolt port. It has been flickering as it comes on and off.

I tried reconnecting cable but it didn't help. My OS is mojave 10.14.6 Edit: here is a video of flickering

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  • Is this question about the flickering and how to solve or is this a purchasing question? If the former, we're going to need more info like the OS you're running, the adapter you're using, etc. If the latter, you need to look over at Hardware Recomendations as shopping questions are off topic here.
    – Allan
    Commented Oct 14, 2020 at 16:23
  • @Allan it’s about flickering. My macOS is Mojave 10.14.6
    – localhost
    Commented Oct 14, 2020 at 17:59
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    I went ahead and removed your purchasing question then, but we still need some additional details. Do you have access to another monitor you can use to test out? This will help rule out whether it's your Mac or the monitor. It's also helpful if you describe or even video the flickering so we can get a better "look."
    – Allan
    Commented Oct 14, 2020 at 18:07
  • @Allan I don't have another monitor. I have added the video clip as well, it is showing the adapter as well.
    – localhost
    Commented Oct 23, 2020 at 12:21
  • Your video is in accessible. But if it's about flickering, it's been addressed before - more than likely you need an active HDMI adapter. See this answer regarding flickering.
    – Allan
    Commented Oct 23, 2020 at 20:46

2 Answers 2

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Make sure that the HDMI adapter is compatible with MacBook. Some HDMI adapter isn't and makes your screen flicker.

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  • This is not correct - there's no such thing as an HDMI adapter not compatible with Mac. The adapter takes a signal (DisplayPort most likely) and converts it to another signal (HDMI); the OS plays no part in this. However, converting from DP to HDMI can cause issues because the signals are very different. This is why I recommend active adapters if you must convert, but it's preferable you don't and use a monitor with DisplayPort input(s).
    – Allan
    Commented Oct 27, 2020 at 14:08
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So turns out the adapter I was using was dodgy, now I removed it and got myself thunderbolt to HDMI cable, it is clear and no flickering.

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