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Old 04-27-2021, 10:56 AM   #1
phzfn
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Default No 4k on Mac OS 11.3 (M1)

After upgrading to macOS 11.3 i cannot select a 4k resolution for my DisplayLink connected screen anymore. Before the update it worked well.
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Old 04-27-2021, 12:05 PM   #2
throw
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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.
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Old 04-27-2021, 02:25 PM   #3
JanB
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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.
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Last edited by JanB; 04-27-2021 at 02:36 PM.
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Old 04-27-2021, 04:01 PM   #4
BHedges
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I have this too, reported to support last night, supplied logs this morning.
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Old 04-27-2021, 08:16 PM   #5
neurosys
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Default RDM works great

Quote:
Originally Posted by JanB View Post
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
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Old 04-28-2021, 07:42 AM   #6
throw
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Quote:
Originally Posted by neurosys View Post
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.
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Old 04-28-2021, 01:27 PM   #7
rottyman
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Default Rollback

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
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Old 04-28-2021, 11:07 PM   #8
rottyman
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Quote:
Originally Posted by rottyman View Post
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
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Old 04-29-2021, 12:01 AM   #9
Tazovsky
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Quote:
Originally Posted by rottyman View Post
I have found out this is not possible

Why do you mean? Did version 11.3 introduce some limitations?
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Old 04-29-2021, 01:24 AM   #10
rottyman
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Quote:
Originally Posted by Tazovsky View Post
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.
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