[NAME]  There is more than one Lenovo dock model that involves the word “Universal”, and you’ll also need to be clearer about exactly what outputs and cables/adapters are involved than just saying “with DVI and USB-C”. The exact dock model you’re using and the exact way your displays are connected can matter. Alternatively, you can check this Lenovo page that is specifically designed to show what display setups are possible with various docks and various output combinations to find out for yourself if your dual QHD setup is possible with the dock you have. But to run dual QHD through a dock that would also support USB 3.x data, yes you would need a Thunderbolt dock with that system. If you had a system that supported DisplayPort HBR3, you could run dual QHD + USB 3.x over regular USB-C, but the XPS 15 didn’t gain HBR3 support until the 9510 model after yours. The only alternative would be to get a dock that used “indirect display” technology such as DisplayLink — not to be confused with DisplayPort — but that involves several drawbacks of its own. Also note that if your XPS 15 9500 has an NVIDIA GPU installed, then it will be designed for a 130W power source for optimal performance. Dell only has a few docks that support providing that much power, and you won’t find any non-Dell docks that support it because Dell achieved 130W over USB-C using a proprietary mechanism since the USB PD standard at the time maxed out at 100W. So if you use some other dock, you’ll either need to keep the system’s power adapter also connected or else accept reduced performance. The Dell WD19TBS is a Thunderbolt dock that will run dual QHD from your system (in fact it could run dual 4K or triple QHD) and will also supply 130W to your XPS 15.
Hi. I can see in the forum it's some difficulties to get the XPS 9500 to work properly with 4K. I have two Philips B-line 276B1JH monitors, which is designed for 2K, 2560x1440 resolution. Is there by any alternative possible with this laptop to have both external monitors to wiew 2560x1440? I have tried with different kable and docking setups, with no success. Kind regardsAndreas O
Dell XPS 9500 and 2 x QHD monitors