Sporadic disconnection/reconnection (Win 8.1)

[bfrei]

Like several other users here, I have the problem that a couple of times per day, my docking station (Warpia Dock n' charge SWP240) is sporadically disconnected and then reconnected again. This happens with USB 3.0 (I do not have any USB 2.0 ports on my laptop) with Windows 8.1 64bit, all updates installed. The only USB devices hooked up to the docking station are mouse, keyboard and an HDMI display.

I have DL driver version 7.6 M2 installed.

For every disconnection, I found the following event in the event log. The vendor/device ID indicates that this is related to the installed DisplayLink devices:

Event 4, Kernel-ShimEngine
Flags [1024] were applied to device [USB:USB\VID_17E9&PID_4307] - class [USB].
Flags source: applied through compatibility database.

- <Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
- <System>
<Provider Name="Microsoft-Windows-Kernel-ShimEngine" Guid="{0BF2FB94-7B60-4B4D-9766-E82F658DF540}" />
<EventID>4</EventID>
<Version>1</Version>
<Level>4</Level>
<Task>0</Task>
<Opcode>0</Opcode>
<Keywords>0x4000000000000000</Keywords>
<TimeCreated SystemTime="2014-09-16T07:48:14.154572300Z" />
<EventRecordID>1171</EventRecordID>
<Correlation />
<Execution ProcessID="4" ThreadID="6852" />
<Channel>Microsoft-Windows-Kernel-ShimEngine/Operational</Channel>
<Computer>BF3</Computer>
<Security UserID="S-1-5-18" />
</System>
- <EventData>
<Data Name="DeviceName">USB:USB\VID_17E9&PID_4307</Data>
<Data Name="DeviceClass">USB</Data>
<Data Name="FlagSource">1</Data>
<Data Name="Flags">1024</Data>
</EventData>
</Event>

Best regards,
Bernhard

[JamesH]

Hi,

As soon as the issue is seen please attach the output of this tool:
http://www.displaylink.com/support/ticket.php?id=269
Once downloaded, please run it and select "Gather Support Information"

When you reply please select "Manage Attachments" from the "Additional Options" section below.

From there select Upload and navigate to the output of the tool which will be in a folder called "DisplayLink Support Files" on your desktop.

Thanks,
James

[NinjaGrunt]

This happens to me several times a day. I have isolated the issue to be a DisplayLink issue. The reason being, I have tried different monitors, machines, cables, etc. And it appears that people experience this issue on DisplayLink docking stations (mine being a Toshiba Dynadock U3.0 PA3927U-1PRP). I currently have a Dell XPS 12, and 2x Dell U2412M displays.

Currently I have 2 external monitors. 1 connected via DVI and 1 connected via HDMI. I also keep my laptop monitor active, effectively presenting 3 monitors. When the issue happens, all monitors flash/flicker, with my 2 external monitors appearing as if they were unplugged from the docking station (unplug noise exists). This resets all of my open windows (browsers and applications) to the laptop monitor. Then I move my mouse over the boundary of the laptop monitor and it re-activates the external monitors which then play a noise as if they were just plugged in. I must manually drag windows back out to the external monitors and re-size them appropriately.

I'm not sure why, but in the last week or two, the frequency of this issue has multiplied.

I downloaded the support tool and, ironically, the moment I enabled advanced logging, the symptoms reproduced. I clicked "Gather Support Information" and it immediately crashed, however it shows about 70% in the screenshot. I verified there are files including dmps in the directory, so I will upload these logs now.

Be aware, I have had this docking station for about 20 months and have ALWAYS had this issue. It just happens much more frequently now.

[NinjaGrunt]

Requesting an update, please.

[JamesH]

Hi,

Can you attach those logs that you've gathered?

Thanks,
James

[NinjaGrunt]

I'm not sure why they didn't upload before... Attached again.

[bfrei]

Hi James,

Here's the output I captured just after a disconnection.

BR,
Bernhard

[JamesH]

Hi guys,

Can you both try disabling the USB power management settings shown in this article?

http://www.fixedbyvonnie.com/2013/11.../#.VCF_1_ldV8E

Let me know how you get on.

Thanks,
James

[NinjaGrunt]

Originally Posted by JamesH

Hi guys,

Can you both try disabling the USB power management settings shown in this article?

http://www.fixedbyvonnie.com/2013/11.../#.VCF_1_ldV8E

Let me know how you get on.

Thanks,
James

Attached is an image of my Device Manager USB Tree. The article indicates to disable the power mgmt for the USB Root Hub. What about some of the others?

[Julia]

I tried the advice above, and it helped, but did not eliminate the problem. It made it usable, though over time, the linked screen does turn off. I can turn it back on by removing and reinserting the USB. Any other thoughts for a more complete fix?