07-29-2016 01:25 PM
I have an almost brand new X260 with the Intel HD 520 graphics. External display connected to 'display port' initially worked okay. Now when I connect the display port, the computer initially freezes up for 30sec-1min and then nothing, doesn't detect the display, cannot extend desktop onto the display etc.
Tried updating the display driver. No improvement.
07-30-2016 06:44 AM
Okay, I've finally tried removing other devices and restarting... when I removed a microsoft wireless keyboard 800's usb adaptor and restarted, external display now works fine. How is it that these two systems are interfering? Wierd.