XB271HU DisplayPort Disconnect

Cupelix

I recently upgraded to an XB271HU and am having problems with the DisplayPort disconnecting.

I have two monitors; the XB271HU is my main monitor, being driven via DisplayPort, my second monitor is being driven by DVI.  During the day while I work, I also connect my work laptop to the XB271HU via its HDMI input.  I can then access my personal PC via my secondary monitor, and use the XB271 for work.  At least once if not twice a day, while my XB271 is set to the HDMI input, my personal PC will make the Windows "you disconnected a device" sound, and my secondary monitor becomes my primary monitor.  As soon as I switch inputs back to the DisplayPort via the OCD, the monitor immediately reconnects back to my personal PC, moving all of my windows around.  To be clear, during this time, my personal PC doesn't ever go to sleep or anything like that.

I've done a bunch of Googling on this, but haven't come up with anything with people describing the same issue.  I've found old results describing problems where turning a monitor off disconnects it from Windows, but that isn't what is happening here - and if I do turn the monitor off, I don't even get that same behavior.

Anyone have a similar setup and know of a solution to this problem?

Mevalonate

Hi,

I had issues with the DP cable that came with this monitor. I only have a one monitor set up, so instead of switching to another primary, it would just blink off and back on sporadically.

After trying a bunch of other troubleshooting steps, I replaced the DP cable and everything has been fine for a couple weeks.

Good luck!