09-21-2016 03:09 AM
My laptop is a Yoga 510-14ISK, which has an Intel HD Graphics 520 (graphics unit integrated with the Skylake processor) and an AMD Radeon R5 M330 as the PCI-E card. My issue is supporting the full resolution of my external monitor, a BenQ FP241W, which has a native resolution of 1920x1200. The max resolution offered by any of the tools (Windows, Intel and AMD) is 1920x1080. This leaves black bars on the top and bottom of the monitor, which is not only wasted space, but is contributing to the burn-in of my eight-year-old-but-still-working-as-new monitor.
I originally connected the laptop via a Thinkpad USB 3.0 Ultra Dock, which uses USB-C from the laptop and HDMI to the monitor. I discovered, however, that the Intel driver would not detect the monitor this way, or at least it wouldn't list it. The monitor is now plugged directly to the laptop via HDMI.
I assume this is a driver issue, since these modern graphics cards should easily support 1920x1200. If it is, it isn't trivial to solve; I spent hours yesterday trying various things:
This laptop is supposed to have switchable graphics, to save power during normal use and switch to high performance when needed. I suppose that could explain why the AMD Radeon Settings does not list a Display category—the IGCP is normally in operation and is allowed to be in control of the resolutions. I tried to find out what explicitly resolutions the Intel 520 supports:
What is the maximum resolution Intel graphics can support?
The maximum amount depends on many factors, such as chipset, monitor capabilities, and manufacturer configurations. Check with your computer and display manufacturers to find out what the maximum resolution is for both the computer and display.
Sadly, the Lenovo online support is not forthcoming on the topic, or at least not easily.
Does anyone else have information or experience on supporting external graphics higher than 1920x1080 with the Yoga 510? I would hate to have to live with these black bars.
Thanks for any help,