in Lenovo U and S Series Laptops https://forums.lenovo.com/t5/Lenovo-U-and-S-Series-Notebooks/3860x2160-60Hz-output-support-claimed-for-S340-15API-series-by-usb-c-port-but-does-not-work/m-p/4547329 Lenovo U and S Series Laptops topics Fri, 11 Oct 2019 12:14:24 +0000 ll02_en <![CDATA[ ]]> https://forums.lenovo.com/topic/findpost/1282/4547329/4547329 I found a clear statement in the user manual pdf for the S340-15API series about supporting signal output in 4k@60Hz mode for the usb-c port. But in practice, it is not output by any usb-c adapter. Why Fri, 11 Oct 2019 12:14:24 +0000 https://forums.lenovo.com/topic/findpost/1282/4547329/4547329 Dstone