I have a 5K monitor connected to 1460 (newest drivers installed) via Club 3D DisplayPort 1.4 HBR3 cable, but max resolution is 3840*1080@60Hz. How can I choose/connect 5120*1440@60Hz or other 5K resolutions?
According to Displaylink these are the resolution that are supported.
this would effectively mean that 5120*1440 is a not supported resolution.
Since DisplayLink makes the driver, you should talk to them.
One question I have: is the 5140×2880 resolution only for dual cable displays (dual DisplayPort 1.2 connection)? In other words, it’s actually two 2560×2880 signals.
The only reason I can think of why they might not be able to support 5120×1440 (even though the pixel clock and resolution is less than that of 4K) is because they have some silly 4K limit (2^12) on the width.
Can you post the EDID? You can get that by using Monitor Asset Manager (moninfo.exe). Select the text and copy it into a text file. Just the hex bytes would be sufficient.