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macrumors newbie
Original poster
Mar 22, 2009
Hello everyone,

I wanted to share my experience with my setup, which includes an MBP M2 and an LG C2 42". I followed the rtings guide and used Lunar to disable software dimming on the LG. Additionally, I adjusted the input settings, trying both the PC and home theatre options, for the HDMI input my Mac is connected to. I primarily watch MKVs at 4k/1080 resolution on the C2.

However, I have noticed some issues with the display. The darker shots appear too dark, and the colors seem flat and cold. For example, a film like "Plane" displays warm and natural colors on my MBP screen, but on the C2, it appears dark and washed out. To compare, I watched the film "Heat" using different sources:

  1. "Heat" on Amazon Prime HDR via the Amazon app on the C2 looked very nice with good colors.
  2. "Heat" on Amazon Prime HDR on my MBP M2 also looked very nice with good colors.
  3. A 50GB UHD MKV on my MBP looked great.
  4. The same 50GB UHD MKV played via HDMI 2.0 on the C2 appeared quite dark and flat.
I noticed the same problem with other films like "Andor" and even with brighter films like "The Life Aquatic."

To further investigate, I compared all the above scenarios on the C2 using VLC and MPV. I found that VLC tends to display darker images, while MPV provides richer colors.

When using the native apps on the C2 for streaming services like Netflix, Amazon, Apple TV, and regular TV, the shows look great. However, as soon as I connect my MBP, the richness in colors seems to disappear.

Am I missing something? Do I need to use a DP/USB-C/Thunderbolt 3/4 to HDMI 2.1 cable for 4k@120hz RGB4:4:4 10b HDR?

I've come across many positive reviews of the LG C2 being used with a Mac, but so far, I'm a bit disappointed.

Thank you for your attention.


macrumors member
May 23, 2023
Thanks for sharing your experience with your MBP M2 and LG C2 setup. It can be frustrating when the colors and display don't meet your expectations. It seems like you've done some troubleshooting already, which is great.

Using a DP/USB-C/Thunderbolt 3/4 to HDMI 2.1 cable might indeed improve the color and display quality, especially for 4K@120Hz RGB4:4:4 10b HDR content. It's worth giving it a try to see if it makes a noticeable difference.

Another thing you can consider is calibrating your LG C2's display settings. Sometimes, adjusting the brightness, contrast, and color settings on the monitor itself can help achieve a more accurate and vibrant image. You can also explore professional calibration tools or software for a more precise calibration if needed.
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