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1. MacOS BigSur - M1 support: works great, but it would be really helpful to have the "looks like 2560x1440" option available for 4K resolution

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   154 comments  ·  DisplayLink Feature Suggestions  ·  delete…  ·  Admin →
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   started  ·  AdminAlban Rampon (Senior Product Manager, DisplayLink) responded

   DisplayLink Manager 1.8 Alpha is adding an alternative way of adding 2560x/3008x missing scaling modes from M1/M2 silicon.

   Details: https://support.displaylink.com/knowledgebase/articles/1993915

   New app: https://www.synaptics.com/products/displaylink-graphics/downloads/macos

   For individual follow-ups, please reach out to the support team on technical-enquiries@synaptics.com

   Raphael supported this idea  ·  06 July, 2021
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   Raphael commented  ·  15 June, 2021  ·  Edit…  ·  delete…

   Hi all,

   I face the same issue than you.

   Here is my setup:

   I connect my M1 MBP to a
   - a first LG 27UL850 via usb C -> works well at 1440p for example
   - a second LG 27UL850 via a startech display port dual 4K 60Hz adaptater -> same issue. Only 1080p or tiny 4K resolution available.

   But I was wondering: has anyone tried to use an adaptater display port -> USB-C or display port -> HDMI between the startech output and the screen input ?

   Besides, @tom said earlier : it seems that the M1 can't perform sub integer scaling.
   But isn't it exactly what it does for my first screen which is directly connected to my Mac ?

   Thank you for your insight on that matter.

   Raphael

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