No Monitors after W10 Update

[toddbecker]

Originally Posted by AlbanRampon

Well... The title of the thread says "no monitors after W10 update" so I wrongly assumed it worked before.
Also it is not very natural for IT departments to give Windows Insider's Fast Ring builds to end users as they are supposed to be unstable and are unsuitable for production deployment, so I also assumed, wrongly again, that you were in full control of the machine and enrolled yourself to the programme.

1. Is the docking station working on another machine? (including using the same cables as the ones on your desk)
2. Is the machine working with another docking station? (changing everything including cables).
3. Can you try on your machine with a USB2.0 only cable?
From what we can see, it seems to be only on your configuration, so it could simply be a hardware fault.

Kind regards,
Alban

Alban, sorry about the confusion (or lack of clarity) thank you for continuing to work through this.

1 - I have a second, brand new laptop (running W10) and the docking station is not working with it. I have an older laptop running W7 that is working.

2 - I do not have any other DisplayLink based docking stations. My work Surface (Pro 3) does work using the MS Surface docking station.

3 - I will have to see if I have a USB2.0 cable that will work with the Sabrent dock (I am thinking an old USB printer cable should work).

Todd

[AlbanRampon]

Hello Todd,
As well as trying the USB2.0 cable, would you please be able to gather the logs from the Windows 7 machine?
It would give me some information on the docking station factory image.
Kind regards,
Alban

[Dannyheg]

Hello guys,

I have the same problem as you recognized here with my ThinkPad USB 3.0 dock station.

When I installed the latest DisplayLink drivers (v. 8.4 M0) everything works well on my Win7 laptop (with USB 2.0).

But when I try to connect dock to Win10 laptop (Win 10 Enterprise, v. 1607, build 14393.2007) or my another Win10 laptop (v. 1709, build 16299.192) with the same drivers from DisplayLink I cannot see my screens.
I checked device manager when dock is plugged in, and seems that under Display adapters I haven't DisplayLink...

When I tried connection 1st time, everything worked well, but when I disconnect USB dock and connect it again after some time, I have explained problem. This appears after restart.

I tried to reinstall drivers, clean, install newest ones - problem appears still.
Logs from Win 10 Enterprise, v. 1607, build 14393.2007 attached.

Do you have some tips related to this issue?

Thanks for them!

Best Regards, Daniel

[toddbecker]

Originally Posted by AlbanRampon

Hello Todd,
As well as trying the USB2.0 cable, would you please be able to gather the logs from the Windows 7 machine?
It would give me some information on the docking station factory image.
Kind regards,
Alban

Alban, the USB 2.0 cable did not work.

Also, I do not have access to the Windows 7 machine anymore, I cannot gather logs.

Todd

[AlbanRampon]

Hello Todd,
I need to think longer then...
Would you have an Android phone by any chance? If you could connect the dock to it, we can check what takes place. Then, there is a reporting feature in the DisplayLink Android application which can then tell me what took place whilst talking to the dock. That is similar to plugging it to a Windows computer with a 8.0 level driver.

Hello Danny,
Thank you for the log. From this, I can see no DisplayLink chip was ever seen on that machine and it looks like 8.2 Mx is installed. I see you have a machine on which it works. This would be very helpful if you could do the following , please:
1. Connect the dock to the Windows 10 v1607 machine, wait one minute, in case it does something...
2. Connect the dock to your Windows 7 machine and, when you have the desktop displayed, gather logs on that Windows 7 machine.
That won't tell me what took place on the Windows 10 v1607, but it might help me understand the state by looking at what is taking place from the connection of the device.

I am also thinking about trying a previous version of our driver on the Windows 7 machine before going to the Windows 10 machine to change the state of the dock before you connect to the Windows 10, as you indicated it has worked at first connect, but it's a quite cumbersome.

Both,
I am obviously not suggesting these as a long term solution but I'm eager to get you both going again.
Also, I will discuss with some colleagues to get exchange ideas. I might create a support ticket if I need to exchange privately with you. Emails would come from technical_enquiries@displaylink.com.


Kind regards,
Alban

[Dannyheg]

Hello Alban and Todd,

I got logs from Win7 machine, hope they are helpful for both of us.
According to my personal problem, I tried the newest driver (8.4 M0) and I had still problem. On Lenovo forum they replied to another (but partly similar) issue by "turn off" and "turn on" of docking station - didn't help for me. So I installed 8.2 version again...

So now I haven't machine where displays works with Win10 OS. I checked devices under Settings and my OS is able to recognize ThinkPad USB 3.0 dock and was connected, but DisplayLink cannot recognize monitors.

I discussed this with IT architect and he told me, if some drivers (default from Win10 and DisplayLink) are not in collision with this dock.
I also tried another cable, because sometimes I had info that USB was not recognized properly - with no effect. At work we are using Targus docking stations, I connected both and Targus was recognized propertly in a seconds and in Device manager under Display adapters i had Targus dock station - and monitor worked.
This not happened with Lenovo dock...

If you have some another tips or can compare Win7 and Win 10, it will be very helpful... I think for both of us.

Also one latest info - I tried connection with another Win10 machine from my colleague - the same problem and I tried connection with Apple MacBook with DisplayLink software installed - the same problem.

[AlbanRampon]

Hello Danny,

On the Acer machine running Windows 7 and 8.3 M2, the logs are full of errors. The monitor identification is reported invalid, then several USB interfaces get ignored by Windows because of the amount of errors on the bus.
The device has no access to the flashing interface, among others.
I suspect that even on Windows 7, the behaviour is erratic due to communication loss and bus resets.
The amount of errors could explain why Windows 10 doesn't enumerate the device properly. Even on Windows 7, I can see reading the USB descriptors is failing multiple times.

The OS selects the driver and there isn't an inbox driver for that class of devices. Also, third party drivers take precedence over inbox drivers. For instance if you keep deleting the Intel graphics driver on Windows 10, you will get the Microsoft Basic Display Adapter used, until the Intel driver gets installed again.
Therefore I would rule out a driver conflict as being a possible root cause.

The very first step when you connect a device is the host controller reads its identification (that's what enumeration and USB descriptors are about: tell me who you are, what services you do). Only then can the OS decides which driver to pick. The fact that you get "USB device not recognised" means that the device doesn't enumerate properly: that is an OS message.
The errors, and your successful cross testing with Targus docks using the same driver (and the same DisplayLink ASIC) in them, lead me to believe the device itself is unwell, rather than the driver on the machine.

At this stage, I would recommend you contact the manufacturer for hardware support.

If you cannot get a replacement from the manufacturer, I would suggest you try using 8.3 M2 on the Windows 10 machine. The reason is that, if Windows 10 USB driver experiences the same issues accessing the flashing interface of the dock as on Windows 7, you may still be able to use the dock like that, until it degrades further. On Windows 7 our driver is always running and we are using our USB driver, that's why I can glean more details from the logs.
However, if there is nothing appearing in Device Manager, even as device in error, no amount of driver change will help as Windows won't even try to find a matching a driver as it doesn't see any device connected.

Kind regards,
Alban

[Dannyheg]

Good morning Alban,

is not good to see that Win7 is full of errors (but works properly with displays) and Win10 is not working (but maybe 1 global error there).

I will try to use 8.3 M2 version of drivers and will see.

Big thanks for your help.
I will write you here if I will have some questions...
BR, Daniel