I am using a Dell u2718q with a MBP 2017 15" with Radeon 560 via HDMI. System report show the Dell monitor 3840x2160 at 30Hz.
Can I get 4k with 60Hz? Since both MBP and the monitor are able to do it? Maybe I need to use the display port or is HDMI capable of such resolution?
If I need to go via DP port, cable should I use?
Thanks,
It seams that HDMI 4K 60Hz but not using Apple adapter, as the small line says:
The MacBook (2015 and later), MacBook Pro (2016 and later), and iMac (2017 and later) support these resolutions and refresh rates over HDMI 1.4b when using the USB-C Digital AV Multiport Adapter with macOS Sierra 10.12 or later:
- Up to 1080p at 60Hz
- 3840 x 2160 at 30HzThese computers also support 60Hz refresh rate over HDMI when used with a supported HDMI 2.0 display, HDMI Premium Certified cable, and a compatible third-party USB-C to HDMI 2.0 adapter.
Let's try...
Here's what solved the problem for me with my iMac 27" (2017): a USB-C (Thunderbolt 3) to Displayport cable. Not mini-displayport. I got mine on Amazon for 18.00. Cable Matters USB-C to DisplayPort 4K @ 60Hz Cable. Works perfectly.
I tried various adapters, but they did not work. Check the specs to make sure whatever cable you buy works at 60Hz.
I'm looking for the same here. I'm using a MacBook Pro 15''mid 2014 with a Dell Monitor U2718Q and I get 4k@60hz but no HDR, even with a HDMI 2.0 (which only got me 30hz btw)... Apple support says I need the 4k Belkin cable ultra high speed. I'll try that...
Using 4K displays, 5K displays, and Ultra HD TVs with your Mac - Apple Support
specifies max res and rate.
Have you connected a Dell Ultrasharp U2718Q to your iMac in this way? I have to connect my MacBook Pro 2016 to this monitor. This cable also play HDR on the Dell's monitor?
Your MacBook Pro has a Thunderbolt 3 port. So, yes. Use a USB-C (Thunderbolt 3) to Displayport cable, and it should work perfectly. See my post above for where to buy.
Ok with this cable you can rum 60Hz but what about HDR?it works? Dell says that HDR works ONLY by hdmi monitor input.
Hi, Did you try the 4k Belkin cable ultra high speed to get HDR? I have the same configuration...
Monitor Dell 4k at 60Hz
