No 4k on Mac OS 11.3 (M1)

[phzfn]

After upgrading to macOS 11.3 i cannot select a 4k resolution for my DisplayLink connected screen anymore. Before the update it worked well.

[throw]

Hi am experiencing the same, before the update it was working perfectly (smooth @4k).

It broke with the update to BigSur 11.13 and now the best I can get is 1080p.

[JanB]

I am using a resolution switcher (RDM - https://github.com/avibrazil/RDM) which gives me a workaround for the missing resolutions (but no HiDPI > 1080).

Works fine on a MacBook Air M1 with LG 4k Monitor connected via DisplayLink Dock.

[BHedges]

I have this too, reported to support last night, supplied logs this morning.

[neurosys]

Originally Posted by JanB

I am using a resolution switcher (RDM - https://github.com/avibrazil/RDM) which gives me a workaround for the missing resolutions (but no HiDPI > 1080).

Works fine on a MacBook Air M1 with LG 4k Monitor connected via DisplayLink Dock.

RDM works great! Thanks for that work around

[throw]

Originally Posted by neurosys

RDM works great! Thanks for that work around

It is nice and really cool that you found the workaround and posted it!

We should not forget that this is a workaround and DisplayLink should support the latest version of BigSur.

[rottyman]

Any thoughts of rolling back the OS Update? Having a 4K monitor is more important that any new feature in 11.3. As a work around until DisplayLink Supports 4K again for 11.3

[rottyman]

Originally Posted by rottyman

Any thoughts of rolling back the OS Update? Having a 4K monitor is more important that any new feature in 11.3. As a work around until DisplayLink Supports 4K again for 11.3

I have found out this is not possible

[Tazovsky]

Originally Posted by rottyman

I have found out this is not possible

Why do you mean? Did version 11.3 introduce some limitations?

[rottyman]

Originally Posted by Tazovsky

Why do you mean? Did version 11.3 introduce some limitations?

I read that if you use Time machine to restore, it does not restore OS updates. I'm relatively new to Mac so not sure how true that is. I did a restore from yesterday (before I updated to 11.3) and I am still running 11.3. It did not roll back my OS update.