I am very frustrated with my Dell U2415 purchase.

The monitor display appears to go blank every so often, for about 2-3 seconds, and then the display comes back. This happens intermittently. Best case, the display will go a few hours without flickering. Worst case, it goes to black 3 times every 10 seconds.

I thought it was the supplied mDP-to-DP cable, so I purchased another cable but it didn't resolve the issue. Then I tried hooking it up to a different computer and still the problem persisted, so I knew it had to be the display itself.

I contacted Dell support (which was a nightmare in itself, having ordered online from Canada) until finally speaking with someone on the phone who agreed to open a case for replacement.

Upon receiving my replacement (a month later) and setting it up, it appears the same thing is happening with the new display.

The only thing I have not tried, is trying a different connection method (mDP-to-mDP or HDMI). But I am first contacting Dell to see if I can get a different model altogether, or a refund.

Has anyone else experienced the same trouble with this model? I use an older U2412 at work, which behaves fine with the same laptop.