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67 Posts

11-01-2018

FR

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  • Message 21 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-15, 8:08 AM

Having the same issue as harrisb on X1Y3 1903.
It is working normal after battery reset through the pinhole and then boot.
But if I disconnect the Usb C connector when pc is running the troubles begin.
Port 1 and 2 behaving differently, dock LED on 2 turning white after reconnection and led stays yellow on port 1.
Everything works though, charging on both ports, audio, screen and usb disks all connected to dock.

On 1809 this works.

But I wondered since 6 months if there is a proper way to dock undock as I found that the pc didn't release everything

after undocking when running.

So in sleep it kept things alive that were not connected any more.

This wasn't always so.

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22 Posts

06-09-2019

ES

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Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-16, 21:16 PM

 

P1 i7-8850H, 32GB RAM, Quadro P200 conected to a LG 32UD99-W


  • UCM-UCSI ACPI Device appear/disappear not happening in Windows 10 1809. But still happening in 1903

Both in 1809 and 1903 resuming from sleep it will ramdomly happen that:

  • Audio through the external display is lost at times when coming out of sleep. Audio device shows a warning mark and you have to disable/enable to get it back working.
  • External display is no longer recognized (2 times in 24 hours) you have to disable/enable quadro P2000 to get it back working. 

Therefore this two issues do not seem to be connected to the UCM-UCSI ACPI Device issue in Windows 1903 update.


P1/X1 have a record of conecivity issues and BIOS upgrades regarding internal graphics. I think it might be related to that.

 

Since this audio and screen problems seems to be unrelated I opened a new thread about it here.

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1 Posts

08-02-2016

BG

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  • Message 23 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-17, 22:05 PM

will anyone help with this problem? same issue here with X1 Gen 6 and Dock 40AC0135EU and sometimes the trackpad is stopped working also . it's very annoying

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22 Posts

06-09-2019

ES

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  • Message 24 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-23, 0:26 AM

As for today I've discovered external monitor not switching on after long periods of time is 32UD99-W monitor fault.


There is a setting in the monitor that reads Automatic Standby that will cause the problem. Once the monitor reaches the threshold it will not wake up or recognize the signal in the port it went to sleep. Interestingly It will say that signal is detected in a different input and will prompt you to switch will still connected to the same input. 
It's almost certainly a firmware fault in the monitor.

It' is indeed not necessary to have it enabled as it only performs some kind of force standby whenever it detects that the image didn't change for a long period of time. In a normal scenario the computer would trigger screen saver, black screen or sleep mode. This is therefore not needed.

The monitor will still go to standby normally when no signal is detected.

About the audio. 
I still get the yellow mark at times and need to disable/re-enable the audio device to get it back working.

 

About "UCM-UCSI ACPI Device"

Since I'm stuck with windows 1807 now I'm not alble to test it.

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34 Posts

10-29-2017

US

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  • Message 25 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-23, 20:57 PM

I also have the x1 extreme... Similar problem with 3 devices showing in device manager with errors including the thunderbolt one.

 

Tb3 dock model 40ac0135us

 

Other symptoms; dock appeared completely disconnected.  No light changes when connected, no USB ports, no display port video, etc.   This happened overnight, but 2 months earlier, I lost the ability to control the power on/off with the dock button.   This also corresponded to going from an earlier windows 10 1709 to 1803.

 

I'm now running windows 10 version 1803 with these similar problems to everyone.

 

After trying for 3 hours, finally came upon this combination that solved the problem with my TB3 lenovo dock.

 

  • Changed BIOS TB settings to No security and Pre boot enabled
  • Booted up windows 10
  • Download and ran TB firmware update tool
  • When prompted, connected to TB3 dock using cable @ front of dock connected to rear connector on x1e

 

Pretty much everything works again including the ability to power on/off the x1e with the dock.

 

The only remaining thing is that the dock will no longer provide sufficient power to the x1e without the original adapter.   Which is odd because the first few weeks after using the x1e, I used TB3 dock power almost exclusively with no messages and complete charging.   Now it won't stay charging.   Not a huge problem, just glad to have the dock working again.

 

 

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67 Posts

11-01-2018

FR

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  • Message 26 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-23, 21:23 PM

Hi tbThink...

 

I don't think you can connect and charge your laptop to docks front connection as you do.

 

"When prompted, connected to TB3 dock using cable @ front of dock connected to rear connector on x1e"

 

To charge your pc you need the back connector of the dock, the side where also the DP ports are situated.

 

 

Ciao

 

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34 Posts

10-29-2017

US

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  • Message 27 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-06-23, 22:34 PM

Right, let me correct that... it was the back I always used... only used the front when trying to debug this TB issue.

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22 Posts

06-09-2019

ES

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  • Message 28 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-07-01, 16:47 PM

Issue still happening here. 


¿Are there any news for this ?

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6 Posts

02-05-2019

HU

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  • Message 29 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-07-01, 17:24 PM

Please stay on topic this thread is about the UCM-UCSI ACPI Device driver that keeps appearing and disappearing from the Device Manager, right? While I don't have the exact same issue anymore and it stopped disappearing and reappearing, the device gets disabled by windows from time to time becuase it doesn't function properly. Then I have to disable and reenable it.

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6 Posts

02-05-2019

HU

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  • Message 30 of 52

Re: "UCM-UCSI ACPI Device" driver keeps appearing and disappearing from the Device Manager

2019-07-03, 20:51 PM

Yesterday they made a new BIOS update available for the L380 and L380 Yoga on the support site and the change log says:

Fixed the UCSI long run issue 

 Seems like the staff was working on it. The fun part is that I don't even know what exactly this device does, and it didn't produce any obvious problems for me even when it got disabled by windows. Anyways I hope everything works smoothly there.

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