I have 2x Samsung 28" 4K Monitors via Displayport cables on my Dell D6000 that is connected to my 2017 15-inch Macbook Pro . I experience a huge lag when working on the monitors but not when working just on the macbook screen. I have tried both display link managers 1.1 and 1.2. and I have this problem with both of them. With the last Display Link Drivers 5.2.5 and 5.2.4. the lag is gone BUT I can no longer use the scaled options from mac os (4 pictures to choose from that say "looks like 2560x1440") which make also 2560x1440 seem sharp. I just have a windows like menu with more options, especially if you open it with "alt" pressed BUT 2560x1440 is marked as (low resolution). I didn't have this problem with the display link managers BUT I prefer it to the unworkable lag problem!
Luke
I have 2x Samsung 28" 4K Monitors via Displayport cables on my Dell D6000 that is connected to my 2017 15-inch Macbook Pro . I experience a huge lag when working on the monitors but not when working just on the macbook screen. I have tried both display link managers 1.1 and 1.2. and I have this problem with both of them. With the last Display Link Drivers 5.2.5 and 5.2.4. the lag is gone BUT I can no longer use the scaled options from mac os (4 pictures to choose from that say "looks like 2560x1440") which make also 2560x1440 seem sharp. I just have a windows like menu with more options, especially if you open it with "alt" pressed BUT 2560x1440 is marked as (low resolution). I didn't have this problem with the display link managers BUT I prefer it to the unworkable lag problem!