Comment by rabf

5 months ago

Dell UltraSharp 40 Curved Thunderbolt™ Hub Monitor - U4025QW

Worth every penny.

I have a U4025QW and there's a glitch I'm typing here for google to pick up.

If my macbook (any macbook, perhaps any computer?) is plugged into the U4025QW and the power goes out, the U4025QW won't get the signal from the laptop and will remain blank. There's two ways to 'fix' this:

The first is to unplug the monitor for a long time, perhaps 2 to 4 hours. Sometimes I'll plug it back in at hour 2 and it wasn't long enough and I'll have to start over.

The second, and this works reliably, is to unplug the U4025QW, and then also unplug the monitor side of the HDMI cable, and then plug it back in with no signal, and then reinsert the HDMI cable. This gets the U4025QW to receive the signal after as long as the above operation takes, a minute or so.

I have had two U4025QW units. The first one was overheating and losing the signal as above on its own. I stopped having overheating issues when I stopped using an undersized UPS. I ran it straight into the wall.

But if there's a power outage (i live in an area with monthly power outages), the signal loss operation is how I restore functionality to the U4025QW.

I finally got one of those 300 dollar UPS units for the U4025QW and it's been very stable since then.

A multi variable episode that took me a very long time to reduce. U4025QW is a great monitor but dont give it bad power and it needs a little love after a power blip.

I’m in the market for new monitors (or maybe only one in this case!)

A question if you don’t mind - Do you find 4K resolution to be sufficient on a 40” screen?

Also just eager to hear any others reasons why you like it

  • I have the same monitor and think the resolution is fine. I run at 125% scaling, which is close to 2560x1440 at 27”, 100% which is the density I moved from.

I have one as well. Indeed worth every penny, although to be fair that's quite a lot of pennies.