Jp1984
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

Today I tried usinga separate power adapter to charge my Mac while connected to the monitor. It stops the charging sound, but I did notice my monitor wakes up once in a while and displays a message saying it's looking for signal. I wish it would just stay black until I wake up my MacBook.

graphex
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

It is very disheartening to hear a Dell employee saying "Dell did not test/validate the U3419W on the proprietary Apple operating system or hardware" in response to a problem that many people, including myself, are having with the monitor. The U3419W is clearly intended to function correctly when being used with a variety of devices, and Dell certainly has a responsibility to its customers to at least test basic functionality of connected Apple laptops, when those laptops represent at least 12% of the market.

Jp1984
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

Since Apple the only brand that got rid of all other ports but USB-C I’m sure Mac users are the biggest market for USB-C monitors. It’s a missed opportunity not to take this market more serious and listen to user's complaints instead of just ignoring them.
Jp1984
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

Has anyone tried the 8/19/19 Apple MAC OS/9 firmware M3B106 (Dell_U3419W_FWUpdate_M3B106_macOS.pkg)?

0 Kudos
Jp1984
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

So the new firmware allows the monitor to charge via USB-C when it's turned off, but unfortunately my MacBook keeps making the 'ding'-sound once regularly, as if it's being connected to a new power source. It appears the monitor doesn't provide a continuous charge.

I'm glad I no longer have to see the monitor light up and show a message that it's looking for signal, but it only solves half of the problem. 

I hope this update shows Dell is listening to our complaints and takes their Mac customers more seriously and that we can expect another update soon that fixes the other issues.

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

Same results here. I keep getting the *ding* power connected sound on my macbook pro. I pray this gets patched soon, it's very annoying to have this happen on such an expensive monitor...
noafe
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

I've found a solution for this, originally pointed out on the Apple forums.

The key is to go to Energy Saver preferences for the Power Adapter, disable Power Nap, and enable "Prevent computer from sleeping automatically...". This seemed to do the trick for me, no more power connected sound coming from my MacBook Pro except when I actually connect the computer to power.

 

AppleFix.JPG

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

That didn't work for me.

I've tried different combinations of the options:

  • In MacOSCatalina: "Prevent computer from sleeping automatically..."  (On/Off), Power Nap disabled
  • In Monitor: "Input Source" (Autoselect), USB-Charging (On/Off During Power Off).

No combination works for me - MacBook Pro (15-inch, 2017) wakes up right after I turn it off.

So there are three threads discussing the same issue now:

https://www.dell.com/community/forums/replypage/board-id/Monitors-Forum-f3529/message-id/122971

https://www.dell.com/community/Monitors/U3419W-scanning-for-signal-when-Apple-is-asleep/td-p/7254570

https://discussions.apple.com/thread/250477993?answerId=251481545022#251481545022

 

Any word from Dell? Should be a fix in the Monitor firmware.

3818owner
2 Bronze

Re: U3419W, MacBook, USB Type-C, sleep/wake issues

The U3818DW running firmware M3B106 has a defect in the USB-C PD protocol that violates spec and causes similar sleep wake issues. This may be the same issue given M3B106 is the also the latest firmware for the U3419W and the symptoms are similar. See https://www.dell.com/community/Monitors/U3818DW-USB-Type-C-power-delivery-problem/td-p/7452974

If the U3419W is violating USB-C spec like the U3818DW is, it has nothing to do with Mac vs. PC and is a USB-C bug Dell needs to fix as they're advertising the monitor as supporting USB-C.