Solved - Laptop x380 yoga with 3 Monitors - Problems

[IScha]

Hello,

i got an Yoga380 with an Core i5-350U an an UHD Graphics 620. In run whith the USB-C Doc. 2. Gen.

When i use 2 Monitors 1920x1080 i have no problems, when i try to work whith 3 Monitors, two of them do'nt run well. Of course i switch of the Display form the Laptop.

Any idears?

[Stefan3D]

Does the USB-C port have an "alternate mode" logo as described at https://en.wikipedia.org/wiki/USB-C#Alternate_Mode_partner_specifications ?

[IScha]

Hi, i can't find anny sticker. Here ist the User guide:https://download.lenovo.com/consumer/options/thinkpad_usb-c_dock_gen2_ug_en_201903.pdf

and here some more informations https://support.lenovo.com/de/en/accessories/acc500106

[Stefan3D · Accepted solution]

According to the matrix

https://support.lenovo.com/us/zh/solutions/pd029622#USB-C%20dock%20Gen%202

you need DisplayPort 1.4 for 3 monitors at 1920x1080

If you have only DisplayPort 1.2 you need to lower the resolution to 1024x768

[IScha]

That's it - THX STefan3D

[IScha]

On more question, do you think it could work with the Thunderbolt 3 Doc. With an resolution 1980x1020 on each monitor?

[AndrewG_Intel]

Hello IScha

Thank you for posting on the Intel® communities.

We are checking this thread and we would like to jump in and help regarding your last question about possible if "it could work with the Thunderbolt 3 Doc".

It is worth mentioning that through Thunderbolt 3 supporting DisplayPort™ (DP) 1.2 specification, you could use an MST (Multi-Stream Transport) hub/dock that can support 3x1920x1080@60hz. However, we always recommend checking with your Original Equipment Manufacturer (OEM) to confirm the support of specific features and capabilities of the laptop and any other device/dock.

Best regards,

Andrew G.

Intel Customer Support Technician