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azatris
azatris
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Hardware:

  1. MacBook Pro (15-inch, Late 2016) \w Radeon Pro 460 on Sierra 10.12.2
  2. IOGEAR USB-C Docking Station with Power Delivery
  3. DisplayPort 1.2a cable
  4. BenQ BL3201PT display (4K@60Hz via DisplayPort supported)

Expectation:

Display can always run in 4K@60Hz as a single screen (mirrored to internal display).

Reality:

Initially (every startup/boot) the display did not get a signal, while the MBP recognized the display correctly as if it was functioning correctly. In that situation, repeatedly sleeping/unsleeping the computer served well in order for the display to receive signal and run 4K@60Hz. But as of late, it went straight to 4K 30hz mode (without other problems) and I have not been able to get 4k 60hz mode out of it ever since. Highest frequency supported via 4K in the display menu is 30hz.

What I have tried:

  1. Installed SwitchResX and tried forcing 4K@60Hz, yet it says it was a 'possibly invalid' configuration that it cannot handle.
  2. Connected a direct power source to the MBP in order to rule out possibility of the docking station not having enough power to drive the monitor.
  3. Reset NVRAM
  4. Reset SMC

Further information:

I have never owned a MBP nor any Apple computer before, so I might be overlooking something. Out of frustration I ordered a direct DisplayPort to USB-C cable which is due in a week, but unsure whether that will solve the problem. Your help is much appreciated!

Hardware:

  1. MacBook Pro (15-inch, Late 2016) \w Radeon Pro 460 on Sierra 10.12.2
  2. IOGEAR USB-C Docking Station with Power Delivery
  3. DisplayPort 1.2a cable
  4. BenQ BL3201PT display (4K@60Hz via DisplayPort supported)

Expectation:

Display can always run in 4K@60Hz as a single screen (mirrored to internal display).

Reality:

Initially (every startup/boot) the display did not get a signal, while the MBP recognized the display correctly as if it was functioning correctly. In that situation, repeatedly sleeping/unsleeping the computer served well in order for the display to receive signal and run 4K@60Hz. But as of late, it went straight to 4K 30hz mode (without other problems) and I have not been able to get 4k 60hz mode out of it ever since. Highest frequency supported via 4K in the display menu is 30hz.

What I have tried:

  1. Installed SwitchResX and tried forcing 4K@60Hz, yet it says it was a 'possibly invalid' configuration that it cannot handle.
  2. Connected a direct power source to the MBP in order to rule out possibility of the docking station not having enough power to drive the monitor.
  3. Reset NVRAM
  4. Reset SMC

Further information:

I have never owned a MBP nor any Apple computer before, so I might be overlooking something. Out of frustration I ordered a direct DisplayPort to USB-C cable which is due in a week, but unsure whether that will solve the problem. Your help is much appreciated!

Hardware:

  1. MacBook Pro (15-inch, Late 2016) \w Radeon Pro 460 on Sierra 10.12.2
  2. IOGEAR USB-C Docking Station with Power Delivery
  3. DisplayPort 1.2a cable
  4. BenQ BL3201PT display (4K@60Hz via DisplayPort supported)

Expectation:

Display can always run in 4K@60Hz as a single screen (mirrored to internal display).

Reality:

Initially (every startup/boot) the display did not get a signal, while the MBP recognized the display as if it was functioning correctly. In that situation, repeatedly sleeping/unsleeping the computer served well in order for the display to receive signal and run 4K@60Hz. But as of late, it went straight to 4K 30hz mode (without other problems) and I have not been able to get 4k 60hz mode out of it ever since. Highest frequency supported via 4K in the display menu is 30hz.

What I have tried:

  1. Installed SwitchResX and tried forcing 4K@60Hz, yet it says it was a 'possibly invalid' configuration that it cannot handle.
  2. Connected a direct power source to the MBP in order to rule out possibility of the docking station not having enough power to drive the monitor.
  3. Reset NVRAM
  4. Reset SMC

Further information:

I have never owned a MBP nor any Apple computer before, so I might be overlooking something. Out of frustration I ordered a direct DisplayPort to USB-C cable which is due in a week, but unsure whether that will solve the problem. Your help is much appreciated!

Source Link
azatris
azatris
  • 23
  • 1
  • 5

MacBook Pro 2016 + 4K 60Hz display maxes out at 30Hz

Hardware:

  1. MacBook Pro (15-inch, Late 2016) \w Radeon Pro 460 on Sierra 10.12.2
  2. IOGEAR USB-C Docking Station with Power Delivery
  3. DisplayPort 1.2a cable
  4. BenQ BL3201PT display (4K@60Hz via DisplayPort supported)

Expectation:

Display can always run in 4K@60Hz as a single screen (mirrored to internal display).

Reality:

Initially (every startup/boot) the display did not get a signal, while the MBP recognized the display correctly as if it was functioning correctly. In that situation, repeatedly sleeping/unsleeping the computer served well in order for the display to receive signal and run 4K@60Hz. But as of late, it went straight to 4K 30hz mode (without other problems) and I have not been able to get 4k 60hz mode out of it ever since. Highest frequency supported via 4K in the display menu is 30hz.

What I have tried:

  1. Installed SwitchResX and tried forcing 4K@60Hz, yet it says it was a 'possibly invalid' configuration that it cannot handle.
  2. Connected a direct power source to the MBP in order to rule out possibility of the docking station not having enough power to drive the monitor.
  3. Reset NVRAM
  4. Reset SMC

Further information:

I have never owned a MBP nor any Apple computer before, so I might be overlooking something. Out of frustration I ordered a direct DisplayPort to USB-C cable which is due in a week, but unsure whether that will solve the problem. Your help is much appreciated!