Win10 won't display on more than 7 Plugable devices

[grevalve]

Hi! Any progress on this?

Thanks

[AlbanRampon]

Hello,

Yes, it made its way to the top of the queue and now needs to be picked up by a tester to reproduce.
As we don't believe we have a limit in our driver, this is unlikely to be a quickie, but once reproduced by a tester, we need a developer to look into it.
I keep an eye on the board and will update you when/if we need more details from you. But the repro seems quite simple so I doubt we will need more.

Kind regards,
Alban

[AlbanRampon]

Hello,

I have an update on this one.
It looks like there might be a limit on the number of USB endpoints.
This is not linked to the number of displays or the number of devices. There is no limitation in our driver.

Could you please give me your machine details?
Using the last link of my forum signature, you can create log files. In them System_Details.TXT will include the machine details.
Also, can you confirm this is the same machine on which it was working before but stopped after changing the OS?

Kind regards,
Alban

[grevalve]

Hi,

I had already created the log files and the System_Details.txt file is already in the attachment in my previous post (attached it again now).

Computer: Dell Inc. - OptiPlex 7010 244GQW1
OS: Microsoft Windows 10 Pro (x64-based PC), No Service Pack, English
OS Build: 10.0.14393.0 (Debug = False)
OS Build Label: 14393.rs1_release.160715-1616
System Bios: Version A08 built 2012/09/19
CPU: Intel(R) Core(TM) i5-3570 CPU @ 3.40GHz
Number of Cores: 4
Physical Memory:
Bank 1 4Gb ChannelA-DIMM1 Synchronous 1600ns NT4GC64B8HG0NF-DI
Bank 3 4Gb ChannelB-DIMM1 Synchronous 1600ns NT4GC64B8HG0NF-DI
Free Space: 405619 MB
Primary Resolution: 1920x1080x32
Desktop Size: 7559x3093
Number of Monitors Connected: 12

Yes, the same number of monitors were working fine on this computer when it was on Windows 7.

Thanks

[AlbanRampon]

Thank you. I had missed it. I am sorry.

[grevalve]

Hello,

Any updates? Were you able to replicate this issue?

[AlbanRampon]

Hello,

The identical thing as you has not been reproduced.
We tested with a wider range of devices because we don't stock each device from manufacturers 7+ times (there are hundreds of devices and we are not notified of them all).
Because the results were different, and the order had an impact, engineering has ordered the identical adapters in higher number to get the same setup.

When they get to it and there is something tangible to say, I will post on that thread.

Regards,
Alban

[AlbanRampon]

Hello everyone,

I'm happy to report that this bug has now been investigated by Microsoft.
We think the problem is understood and we will get a fix to check in the next few weeks. This fix will then go into Windows 10 Fall Creators Update.

I will post when we have received the fix and when it becomes available through the Windows Insiders Program, if you wish to try then.

Kind regards,
Alban

[AlbanRampon]

Hello,

We have verified that the OS is now fixed.
We tested with 10 Plugable adapters on Windows 10 Fall Creators Update (build 16288) and all displays now work.

That build is available through the Windows Insiders Programme. The official release for Windows 10 Fall Creators Update will be around 17th October.

Kind regards,
Alban