iPad Pro iPad Pro as second monitor through Sidecar: why limited to 60hz?

[roach1245]

Would anyone know why when using the iPad Pro (I have the M1 with 120hz or 'ProMotion') as a second monitor through Sidecar it is limited to 60hz?

Even when connected to the Macbook Thunderbolt-to-Thunderbolt with a Thunderbolt 4 cable, assuming this setup should be able to transmit the data to do 120hz?

So is this something that Apple limits on purpose to make it a feature of future iPads?

Or is there an actual hardware limitation somewhere?

I also tried other options such as Luna Display and Duet Display but they're also limited to 60hz.

Thank's for your input!

 

[EastHillWill]

That's interesting. I've used this feature several times but never thought about the refresh rate. Are you sure it's even 60hz? I did some quick googling and a couple folks said it only seemed like 30hz. Maybe this is something Apple will enable down the line.

 

[roach1245]

It's 60hz indeed (30hz is quite choppy).

 

[MrGunny94]

That's interesting. I've used this feature several times but never thought about the refresh rate. Are you sure it's even 60hz? I did some quick googling and a couple folks said it only seemed like 30hz. Maybe this is something Apple will enable down the line.

It is..

 

[EastHillWill]

It is..

View attachment 2048890

Thank you for checking. That’s good news, at least.

 

[MrGunny94]

Thank you for checking. That’s good news, at least.

I wanted to use 120hz

 

[lostPod]

Do any of those other apps like Apollo allow 120?

 

[MrGunny94]

Do any of those other apps like Apollo allow 120?

Far as I know no...

 

[EastHillWill]

I wanted to use 120hz

Same! But good news in that at least it’s not 30 like some folks thought.

 

[MrGunny94]

Same! But good news in that at least it’s not 30 like some folks thought.

Yeah but Monterey introduced a big memory leak with sidecar sadly.