Glad to find this forum. Try to read many posts but lacking knowledge to ensure if my situation would be similar to others. If someone could suggest, please.

  1. Previously I used Acer Predator Helios Laptop with NVIDIA. From what I searched, my external monitor (AOC) connected to this laptop (via HDMI) and rendered using NVIDIA graphics. I've no issue at all. (Actually I never have issue with nausea from monitor even I spent more than 10+ hours a day)

  2. Suddenly one day last two months I changed my laptop to Lenovo ThinkPad T14 Gen2 (with Intel Graphic & NVIDIA) but just realized that external monitor (AOC - the same one) rendered by Intel Graphics only.

Since that day until now, since the very first moment, my AOC screen becomes unfriendly. I can look at it for just an hour max. No matter I adjust gamma, brightness, contrast, etc. Still 'white' is too bright for me, and always feel eye strain and nausea.

Currently I believe it's because of Intel Graphics. I brought back my Predator for a day and connect it to the same AOC, and no issue with my eye.

Question: Do someone know what could be the reasons for this? Is there anyway to adjust the settings? I couldn't just replace a new laptop again at this moment.

Thanks.

    Changing the settings on your T14 won't help you. If I was you I would return it if you can or sell it. If you can stick with your Predator.

    I have two Thinkpads (T440p, T440, Intel HD graphics) and an Ideapad (AMD), but I can't use the Thinkpads without discomfort. There's nothing I could do to make them better. The Ideapad can be used for long hours with little discomfort, but the Thinkpads give me moderate discomfort and can make me feel worn-out within an hour or two.

    Thanks. So to confirm, do you mean this is because Intel HD graphics?

    To summarize, there are good configurations and bad configurations. A configuration is a sum of factors such as screen's technology, monitor's built in dithering, videocard dithering, OS layer, version of video drivers, the lcd inversion which is present in all lcd's, and probably some other things, too, such as the multiplexer drive technology.

    To give an example, I cand use a Zbook G3 (windows 8.1, intel+quadro) connected to a Dell U monitor all day, without issues. When I connect the Dell monitor to the desktop with Geforce 1070, it induces strain. But, with other driver newer than the 2016 one, the Zbook becomes tiring, too. Windows 10 and 11 give the same bad results on this tested good hw configuration.

    I had this exact problem about a year ago. See this discussion for details. In short, I was able to solve this issue with an external GPU, which allows you to use any (most) discrete gfx card in conjunction with a laptop. I've found that the eGPUs completely bypass the laptop integrated graphics and allow you to process/render graphics through any card you can fit into the chassis. This is especially helpful to me since I seem to be most affected by laptop graphics and tend to do ok with desktop graphics (especially, I'm finding, old Nvidia 600 series cards).

    I got this one and have been using it for a year now with much success: https://www.sonnettech.com/product/egfx-breakaway-box/overview.html

    It's a little pricey but WELL worth it to me!!

    Good luck!

      jrhack Could you please share the exact eGPU and video card you use?

        3 months later
        dev