Windows 10: Hyper-V, Windows 10 Samrtcard access in enhanced session mode

Hi, I've recently enabled hyper-v on my Windows 10 pro system that's updated (June 2019). I've seen that enhanced session mode is available for both the Ubuntu 18.04 LTS and the Ubuntu 19.04 templates from the "quick create" menu. This has the ability to access local resources from the VM when connected using enhanced session mode. By default smartcards are selected for passthrough to the Linux VMs.


My problem is that my smartcard isn't accessable by the VM. Previously I have used smartcard sharing on VMware workstation (I'm aware that full USB passthrough to a Linux VM isn't available in hyper-v), however my usual methods of using the SC for SSH authentication - for VMware VMs and on baremetal machines - doesn't detect the card/device at all. This is either the gnupg-agent method or the PKCS11 method for public key authentication.


My SC can be used for SSH authentication on the win10 host using putty, but I really need to use it in a Linux environment.


So far my searches haven't yielded any informention on this. The last time I tested hyper-v, enhanced session mode wasn't available for Linux VMs, even if they were created from an offical template in the quick create menu. Has anyone got this working? Or could you point me in the right direction for relavent documentation?


Thanks in advance.


(This could be in the wrong catagory...)

:)

 

Hyper-V Enhanced Session Mode 'Intercept' Stopped Working

As I said in my previous post, enhanced mode ONLY works on virtual machines with Windows 8.1 or later. See the note in beginning of this tutorial: Turn On or Off Hyper-V Enhanced Session Mode in Windows 10 | Tutorials

 

Hyper-V Enhanced Session Mode 'Intercept' Stopped Working

The RDP config file for a VM is only created when enhanced mode settings are saved. If user switches to enhanced mode without saving the settings, no RDP configuration file will be created.

To save configuration, first switch to enhanced mode:





Click Show Options:





Select Save my settings and click Connect:

In normal mode, resolution can be changed exactly as on physical machines, right click on desktop and select Display Settings.

When switching to enhanced mode on a VM with no configuration saved, use the slider in VM Connect window to set resolution:

 

Hyper-V Enhanced Session Mode 'Intercept' Stopped Working


WIN 10 build 1809. Very strange problem. Hyper-V was working fine with enhanced sessions and then went south. Checked Hyper-v settings and both Server -- > Enhanced Session Mode Policy and User --> Enhanced Session Mode are checked. With new virtual machines there is no opportunity to set resolution, etc.
Turning off and on enhanced settings -- no joy. There are no files in the vmconnect directory that correspond to my present VMs, only one old one vmconnect.rdp.xxxxxxxxxx.
I need to change the video size for my existing vm's, but cannot. For a Linux VM I managed to change the video size by modifying the GRUB_CMDLINE_LINUX_DEFAULT in Linux.
Another important piece: I also use viboot under Macrium to create VMs from backups and it works perfectly:
the enhanced box pops up on every start to change parameters. Macrium uses Hyper as a back end.
Why isn't hyper-v creating vmconnect.rdp files for new VMs? What can I do to further troubleshoot this issue?