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Go to SolutionU4919DW, reconnects USB devices on waking up
After randomly looking if there is a firmware update for my issue of switching inputs not transferring the device the USB ports are connected to and thus waking them, I saw that there have in fact been quite a few updates (even though Dell representatives were telling me that a fix is in the works and is coming, apparently it was out all the time).
Updating to firmware M2B107 brings a new issue though. Any time my monitor goes to sleep, waking it up works, but then the USB hub is disconnected and reconnected once the monitor wakes up. I'm guessing this is not related to a setting as I haven't changed anything before or after the update? I currently have only one device connected so I see no reason for this behavior.
756
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Posted September 12th, 2022 05:00
"I currently have only one device connected"
* What specific device?Yes/No? Once woken, any USB-A device connected to any of the five U4919DW USB-A downstream ports work.
DELL-Chris M (old account)
#IWork4Dell
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Posted September 12th, 2022 12:00
The one device is one PC via a Type-B upstream port, like it has always been. I use the KVM functionality with my work laptop, but I have not tried the behaviour on it since the update, so can't confirm if the reconnect behaviour occurs on type-C too.
As for downstream devices, it's a keyboard and a mouse (dongle). Moving the mouse wakes up the computer, then both devices get disconnected and connected again. That is the issue, this was not happening before the update of the firmware.731
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Posted September 17th, 2022 10:00
Just to be clear, I just noticed this. After the monitor wakes up and displays the desktop, the mouse moves, so the USB devices are connected (obviously, as they would not wake up the PC otherwise). It is a fraction of a second after displaying the image that the disconnect chime of Windows plays and then the devices reconnect.
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Posted September 24th, 2022 15:00
Any updates?
725
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Posted September 30th, 2022 10:00
Is it possible to downgrade the firmware version of the U4919DW monitor? If yes, where can I get the older versions?
Since updating to M2B107, my USB ports are disconnecting and reconnecting to the PC upon waking the monitor. As it is VERY annoying and as there aren't any answers in that topic, I guess the only solution is to downgrade the firmware.708
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Posted October 1st, 2022 04:00
Might be, would need to try. The question is if it's possible to downgrade though.
709
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Posted October 1st, 2022 04:00
A quick Google search brings up M2B106 for both Mac and Windows. Any good?
706
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Posted October 1st, 2022 04:00
My U4021QW downgraded OK after the last disastrous update. But you're right to query this as most products don't allow winding back to older versions. There's only one way to find out ;-)!
700
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Posted October 1st, 2022 14:00
Yeah and I wouldn't mind not bricking my 1200 € monitor if at all possible...
Primoz
1 Rookie
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18 Posts
916
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Posted October 2nd, 2022 22:00
Tried downgrading to M2B106, it works, no annoying bug anymore. You only get a notification requiring confirmation that you're doing a downgrade.
Avoid M2B107 if you're a U4919DW user.