- My monitors: Two Acer XB270HUs, QHD/1440p native resolution, up to 144hz refresh rate, GSYNC
- Laptop docking station: Dell WD19DCS, single USB-C 3.2
- Laptop specs: Dell Latitude 5400, 15-8365U, Intel UHD Graphics 620, 8gb ram, Windows 10 Enterprise 19043.2251
So I am trying to setup my home office. The setup is simple: laptop connected to docking station to two monitors, all specs as described above.
I set both the displays to 1080p as the USB-C dock lacks the bandwidth to drive two 1440p displays at 60@hz, and I am perfectly fine with two 1080p @60hz display. However that does not work as one of the displays cannot go above 23/24hz. I quickly realized that this is probably due to the "Active signal resolution" of both monitors still showing as 2560 x 1440, therefore making the bandwidth the limiting factor. I know for sure that two 1080p @60hz display works as I have that setup in the office.
I have tried all the methods I could find, which can be summarized all in this thread including: changing res through list all modes, changing res through Intel Graphics Command Center, installing latest drivers, etc. At this point I am highly suspecting that perhaps the monitors themselves cannot output a lower res than native through EDID but nothing I found online supports this, if anyone can confirm this or offer any additional knowledge that I haven't tried it would be greatly appreciated.
