01-05-2019 07:55 PM
I purchase a highly reviewed USB C Hub on Amazon: https://www.amazon.com/gp/product/B07GDHD3VC/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1
to use with a Lenovo C930. Unfortunately, when I have the Lenovo power adapter connected to the USB Hub and the USB Hub connected to the laptop, the laptop charges, but does not detect the USB Hub If I disconnect the (Lenovo) power adapter from the hub, the hub seems to work properly. Can anybody provide advice on whether this is an issue with the hub or the C930? I've been trying to update all of the drivers through device manager to no avail.
Solved! Go to Solution.
01-05-2019 08:17 PM - edited 01-05-2019 08:24 PM
I just purchased one and it arrived today. There are 3 ports on the C930, the regular USB, then the first USB-C that charges the computer and the last one is a second USB-C. I plug my multi-port into the last port leaving my charger in the first USB-C port. It works fine.
Here is the charger I got...it's great for my uses and was much cheaper. https://www.amazon.com/gp/product/B07CWD6MB3/ref=ppx_yo_dt_b_detailpage_o02_s01?ie=UTF8&psc=1
01-06-2019 03:32 AM
I believe that I could do the same thing with mine, but I was hoping to avoid wearing out two ports on the laptop by needing to plug in power and the hub into separate USB-C ports. I would also like to leave the other USB-C port open in the event that I needed some other adapter on it. I'm talking to the seller on Amazon trying to find out if it is a compatibility issue or if it is a defective product.
01-17-2019 12:48 PM
Just to close this out, I investigated some other USB C hub options. Plugable had one with two HDMI displays, but they said that it was not compatible with the C930. After chatting with Lenovo tech support and sales support, they recommended the Thinkpad 40A90090US. I purchased it and a couple DVI to HDMI converters, they arrived today, and everything has been working well so far (only a few hours, mind you). I currently have:
2 HDMI 1080p monitors
USB wireless keyboard/mouse combo
All plugged into the C930 on one USB C connection. I'll report back if I find any intermittent issues.
01-31-2019 10:59 AM
Yes, I am still happy with it. I recently had someone ask if it could do higher than 60 Hz. My LCD monitors are rated to 75 Hz and display 2 will run at 75 Hz but display 1 will only run at 60 Hz. Identical monitors, identical displayport to HDMI adapters, but different HDMI cables and I haven't tried swapping the cables around. This doesn't really have any impact on me for business use, though.
The only quirk I have encountered so far is that I cannot power it on while the lid is closed, even when connected to the dock. I've tried the button on the dock and the button on the laptop and neither will power it up. If it is just asleep, I can wake it with the mouse (but not the power button), but if it is completely off I have to open the lid and press the power button. Sometimes even when I close the lid again it will keep the laptop screen as an additional screen. If I notice that my mouse is disappearing or programs are not on the monitors I will have to open and close the lid again. This, of course, is after I already changed the power settings to do nothing when it has power and the lid closes.
The only significant thing that I have realized that I would have liked the laptop or the docking station to have is an SD card reader. However, the USB C hub I initially bought as a "docking station" does, so I can use it as an SD card dongle.
02-01-2019 04:14 AM
02-01-2019 06:23 AM
That looks similar to my first one WojtasWWW. It sort of worked, but only for one monitor and I had to connect power to the hub after the hub was connected to the laptop. There was intermittent interference on the 2.4 GHz wireless mouse and keyboard, too.
Does yours have the capability of dual monitors? I would say that I am very happy with the Thinkpad dock so far.