Displaylinkmanager service problem

[AlbanRampon]

Hello Tanner,

We don't support the different Windows 7 Embedded flavours.
Your observations are in line with what we investigated last year on the subject.

We know people use our 7.7 M4 and 8.0 drivers successfully with Windows 7 Embedded.
I would recommend trying them.

Kind regards,
Alban

[Tanner.zaitt]

Originally Posted by AlbanRampon

Hello Tanner,

We don't support the different Windows 7 Embedded flavours.
Your observations are in line with what we investigated last year on the subject.

We know people use our 7.7 M4 and 8.0 drivers successfully with Windows 7 Embedded.
I would recommend trying them.

Kind regards,
Alban

Thank you!

I was tried the latest Displaylink Drivers but it doesn't work.
I removed all drivers for Hp Elite Display, and DisplayLink.
Now I use only displaylink driver 7.7 M4 and the problem is solved!

Thanks again!

[Tanner.zaitt]

Hey, thank you, I tired exactly 7.7.M4 driver and everything work fine!
8.0 version, it doesn't work, I can't install it.
I downloaded it from displaylink download web page.

The installer sayed the driver is modified please connect with your vendor.

[AlbanRampon]

Hello,
This error message means that the digital signature cannot be validated.
We sign packages and refuse execution when not validated so packages can't be altered by malicious parties who can then redistribute the package with something else undesirable embedded.

On your case, I believe this is because your Windows 7 Embedded lacks the possibility to validate SHA-256 hashes. Previous drivers were using SHA-1 hashing but, because it has been deprecated by many because someone once managed to do a collision, we have upgraded to using SHA-256 which is still believed fully secure, for now.

On full Windows, KB3033929 is allowing to validate SHA-2.
I don't know of the necessary patch for Windows Embedded.
However, if you do find out, I am interested to know so I can add it to our FAQ on the subject. Even if we are unable to officially support that OS, we are willing to make it easier for other people in your situation!

Kind regards,
Alban

[Tanner.zaitt]

Hi, thank you again for your help I appreciate it.

I tired to install version 8.0 but again I see the same message:
"The software package appears to have been modified.
Installation aborted.
Please contact your vendor for assistance."

Before to start installation of version 8 I installed Windows6.1-KB3033929-x86.msu but without effect.

[AlbanRampon]

Yes, from its description, I expect KB3033929 to be for full Windows, not Embedded.

If everything works with 7.7 M4, there is little to no value for you to spend time trying to find a way to get SHA-2 working on your WES/WEC.
You're unlikely to get new primary graphics card driver for the platform, therefore unlikely to require the latest DisplayLink driver to match it.