Macbook 2015 12inch Retina with USB-C

[wahlfeld]

Originally Posted by Carlo

Hi Paul,

Thank you for your support. Unfortunately there is still much to do to get where we'd like to be. Unfortunately it's not all in our control.

About the type-C I see the problem, I think the best solution would be a USB-C dock with power delivery and DisplayLink. So you can also save the eye-watering cost of the multiport adapter.

The first docks with power and DL over type-C are going to be available this May as far as I know, but I can't recommend any specific brand.

Regards,
Carlo

Hey Carlo,

I have a Macbook 12" 2015 and I'm having problems with DisplayLink v2.6. The keyboard and mouse connected to the dock are working, but no monitor or LAN. The adapter I'm using it an 8Ware brand with usb3 type c charge port, LAN, HDMI and usb 3 regular port.

Am I in the right place to request support?

Thanks,
Curtis

[wahlfeld]

Originally Posted by wahlfeld

Hey Carlo,

I have a Macbook 12" 2015 and I'm having problems with DisplayLink v2.6. The keyboard and mouse connected to the dock are working, but no monitor or LAN. The adapter I'm using it an 8Ware brand with usb3 type c charge port, LAN, HDMI and usb 3 regular port.

Am I in the right place to request support?

Thanks,
Curtis

Just an update, this works upon restart. If I disconnect and reconnect it often fails, but sometimes works. The only way to fix it is to restart. Ideally it would be good if I didn't have to restart almost every time I reconnect to the dock. Is anyone else having a problem like this?

Thanks,
Curtis

[Wim]

Originally Posted by wahlfeld

Hey Carlo,

I have a Macbook 12" 2015 and I'm having problems with DisplayLink v2.6. The keyboard and mouse connected to the dock are working, but no monitor or LAN. The adapter I'm using it an 8Ware brand with usb3 type c charge port, LAN, HDMI and usb 3 regular port.

Am I in the right place to request support?

Thanks,
Curtis

I think this is a separate issue to the one mentioned in this thread. I suspect the issue you are having is that the DisplayLink chip is not always appearing on the USB bus, and only the USB 2.0 devices are being enumerated (which is why your keyboard and mouse work).

This can be debugged using the article below:

http://support.displaylink.com/knowl...at-all-when-co

Wim

[wahlfeld]

Originally Posted by Wim

I think this is a separate issue to the one mentioned in this thread. I suspect the issue you are having is that the DisplayLink chip is not always appearing on the USB bus, and only the USB 2.0 devices are being enumerated (which is why your keyboard and mouse work).

This can be debugged using the article below:

http://support.displaylink.com/knowl...at-all-when-co

Wim

I had a look at that link and it didn't really help. I've attached some information when the drivers are working compared to when they're not.

Working:
https://i.imgur.com/6k00952.jpg

Not working:
https://i.imgur.com/wB9dWn1.jpg

Here's the full set of system information on the USB buses:

USB 3.0 Bus:

  BSD Name:	en2
  Host Controller Driver:	AppleUSBXHCIWPT
  PCI Device ID:	0x9cb1 
  PCI Revision ID:	0x0003 
  PCI Vendor ID:	0x8086 

USB3.0 Hub             :

  Product ID:	0x0812
  Vendor ID:	0x2109  (VIA Labs, Inc.)
  Version:	91.05
  Speed:	Up to 5 Gb/sec
  Manufacturer:	VIA Labs, Inc.         
  Location ID:	0x14300000 / 3
  Current Available (mA):	1800
  Current Required (mA):	0
  Extra Operating Current (mA):	0
  BSD Name:	en2

USB3.0 Hub             :

  Product ID:	0x0812
  Vendor ID:	0x2109  (VIA Labs, Inc.)
  Version:	90.84
  Speed:	Up to 5 Gb/sec
  Manufacturer:	VIA Labs, Inc.         
  Location ID:	0x14340000 / 5
  Current Available (mA):	1800
  Current Required (mA):	0
  Extra Operating Current (mA):	0
  BSD Name:	en3

Targus USB3.0 DV Dock with Power:

  Product ID:	0x4306
  Vendor ID:	0x17e9  (DisplayLink (UK) Ltd.)
  Version:	0.49
  Serial Number:	10230302
  Speed:	Up to 5 Gb/sec
  Manufacturer:	DisplayLink
  Location ID:	0x14341000 / 13
  Current Available (mA):	1800
  Current Required (mA):	2
  Extra Operating Current (mA):	0
  BSD Name:	en3

USB 10/100/1000 LAN:

  Product ID:	0x8153
  Vendor ID:	0x0bda  (Realtek Semiconductor Corp.)
  Version:	30.00
  Serial Number:	000001000000
  Speed:	Up to 5 Gb/sec
  Manufacturer:	Realtek
  Location ID:	0x14310000 / 4
  Current Available (mA):	1800
  Current Required (mA):	64
  Extra Operating Current (mA):	0
  BSD Name:	en2

USB2.0 Hub             :

  Product ID:	0x2812
  Vendor ID:	0x2109  (VIA Labs, Inc.)
  Version:	91.00
  Speed:	Up to 480 Mb/sec
  Manufacturer:	VIA Labs, Inc.         
  Location ID:	0x14100000 / 2
  Current Available (mA):	1000
  Current Required (mA):	0
  Extra Operating Current (mA):	0

USB2.0 Hub             :

  Product ID:	0x2812
  Vendor ID:	0x2109  (VIA Labs, Inc.)
  Version:	90.80
  Speed:	Up to 480 Mb/sec
  Manufacturer:	VIA Labs, Inc.         
  Location ID:	0x14140000 / 6
  Current Available (mA):	1000
  Current Required (mA):	0
  Extra Operating Current (mA):	0

USB 2.0 Hub:

  Product ID:	0x0101
  Vendor ID:	0x1a40  (TERMINUS TECHNOLOGY INC.)
  Version:	1.11
  Speed:	Up to 480 Mb/sec
  Location ID:	0x14142000 / 7
  Current Available (mA):	1000
  Current Required (mA):	100
  Extra Operating Current (mA):	0

HD Pro Webcam C920:

  Product ID:	0x082d
  Vendor ID:	0x046d  (Logitech Inc.)
  Version:	0.11
  Serial Number:	0AB5DA1F
  Speed:	Up to 480 Mb/sec
  Location ID:	0x14142400 / 11
  Current Available (mA):	1000
  Current Required (mA):	500
  Extra Operating Current (mA):	0

Microsoft USB Optical Mouse:

  Product ID:	0x00cb
  Vendor ID:	0x045e  (Microsoft Corporation)
  Version:	1.00
  Speed:	Up to 1.5 Mb/sec
  Manufacturer:	PixArt
  Location ID:	0x14142300 / 10
  Current Available (mA):	1000
  Current Required (mA):	100
  Extra Operating Current (mA):	0

Wired Keyboard 600:

  Product ID:	0x07f8
  Vendor ID:	0x045e  (Microsoft Corporation)
  Version:	3.00
  Speed:	Up to 1.5 Mb/sec
  Manufacturer:	Microsoft
  Location ID:	0x14142200 / 9
  Current Available (mA):	1000
  Current Required (mA):	100
  Extra Operating Current (mA):	0

Like I said, it will always work after a restart but once unplugged and plugged back in the LAN and monitor will not work; looks like the USB3 bus becomes undetected.

Does anyone have any other suggestions?

[wahlfeld]

Hey all, has there been any updates on this issue?

I imagine the number of support tickets is going to go through the roof is this issue isn't fixed soon since all the new Macbooks only have USBC ports.

If you can please refer to my post(s) above.

Basically upon restart, USB2 and USB3 devices work. If unplugged and replugged then only USB2 devices work.

[Carlo]

Originally Posted by wahlfeld

Hey all, has there been any updates on this issue?

I imagine the number of support tickets is going to go through the roof is this issue isn't fixed soon since all the new Macbooks only have USBC ports.

If you can please refer to my post(s) above.

Basically upon restart, USB2 and USB3 devices work. If unplugged and replugged then only USB2 devices work.

Hi Whafield,

It's not clear to me what the USB topology is.
You mentioned DisplayLink Ethernet but it looks like a RealTek USB to Ethernet product is connected.
Also, the DisplayLink device connected is a Targus dock and I'm not sure the 8ware device has actually a DisplayLink chip in it: I have found no reference to DisplayLink drivers in their website.

So I'm wondering how the monitor is connected.
Can you please clarify how everything is connected? Logs would help too: http://support.displaylink.com/knowl...to-displaylink

Best regards,
Carlo

[wahlfeld]

Originally Posted by Carlo

Hi Whafield,

It's not clear to me what the USB topology is.
You mentioned DisplayLink Ethernet but it looks like a RealTek USB to Ethernet product is connected.
Also, the DisplayLink device connected is a Targus dock and I'm not sure the 8ware device has actually a DisplayLink chip in it: I have found no reference to DisplayLink drivers in their website.

So I'm wondering how the monitor is connected.
Can you please clarify how everything is connected? Logs would help too: http://support.displaylink.com/knowl...to-displaylink

Best regards,
Carlo

Alright, see below links for some photos of the setup. Plus, I've attached logs from that DisplayLink tool in the working and not working scenario. Let me know if you want me to do anything else.

http://i.imgur.com/AdQJT0X.jpg
http://i.imgur.com/p7w0Cg6.jpg
http://i.imgur.com/t0XNpwB.jpg
http://i.imgur.com/joZxn73.jpg

Thanks Carlo!

[Carlo]

Originally Posted by wahlfeld

Alright, see below links for some photos of the setup. Plus, I've attached logs from that DisplayLink tool in the working and not working scenario. Let me know if you want me to do anything else.

http://i.imgur.com/AdQJT0X.jpg
http://i.imgur.com/p7w0Cg6.jpg
http://i.imgur.com/t0XNpwB.jpg
http://i.imgur.com/joZxn73.jpg

Thanks Carlo!

Thank you,

OK so the USB-C device is used as a C-to-A adapter and everything is connected to the Targus dock, which is handy so there's only one cable to connect.
The main issue is visible in both the DisplayLink and the system logs: at some point the USB 3 part of the hub in the Targus dock disappears.
In the DisplayLink logs this is shown as transfer errors and device unavailable. In the system log you can see transfer and wake errors in both USB2 and USB3 devices and then only the USB2 part of the hub is reset while the USB 3.0 part of the hub is longer there, together with the DisplayLink device.

USB 3 is difficult hardware-wise because of both higher speed and more advanced power management so looks like something is borderline in your use case and fails.
I'd think about the USB-C adapter as the first thing to try and replace, but you may also want to try with a different, shorter, USB cable between the Targus and the adapter.

A separate issue is with the monitor. I'm seeing 8 different monitor description files so unless you are trying eight different monitors it is likely that there is a problem connecting to the monitor. Most likely the connection, I'd check the DVI cable.

Bes regards,
Carlo