Ultra Widescreen Monitor and plugable active displayport to hdmi not generating 2560x1060

Hi there,

I have a LG 34UM61-P 34" UltraWide Monitor connected to a Thinkpad USB 3.0 dock. The monitor and dock is being driven by a Lenovo X250 with an Intel HD Graphics 5500.

I just purchased and connected a plugable active displayport to hdmi adapter, but can still only reach a max resolution of 1920x1080. I am trying to get to 2560 x 1080.

Based on what I have read my hardware should be able to support that resolution. What am I missing or doing wrong?

Product links and info below:
-Running windows 7



Hello Hung, thanks for posting and I will be happy to help! We do not have the Lenovo USB 3.0 dock to test with, unfortunately, so I am not sure if this is expected when connected to that dock.

To clarify, is the LG 34UM61-P monitor the only one you have connected to the Lenovo docking station or do you happen to have another monitor connected to the DVI port?

Thank you,

David W.
Plugable Technologies

Hi David,

I figured out the problem. I was trying to run 2 monitors. 1 at 2560x1080 and 1 at 1920 x 1080.

Apparently my hardware can only power 1 monitor at 2560 x 1080. Once I disconnected the other monitor, it worked as expected.

Thanks for the response.