Release Notes

Download and install the latest NVidia driver restart PCoIP to ensure there is no X session running: > sudo systemctl restart pcoip > sudo /bin/sh NVIDIA-Linux-x86_64-XXX.XX-grid.run --dkms -s > sudo dracut -fv > sudo reboot

When the system is rebooted, the older kernel modules from the initramfs are loaded again, which means the userspace libraries can't talk to the new driver. *To resolve the issue:* To resolve the issue after the driver is installed but _before_ rebooting: `sudo dracut -fv`  To resolve the issue after the driver is installed and _after_ rebooting: `sudo modprobe -r nvidia_drm nvidia_modeset nvidia` ` sudo dracut -fv` ` sudo reboot`

If possible, upgrade to a newer operating system that comes with a newer kernel.

The cause of this problem is that the default sensitivity of the Wacom stylus requires the user to hold their hand exceptionally still to trigger mouse hover text. One workaround is to use the mouse when you want to see the hover text. Another option is to decrease the sensitivity of the stylus to suppress small movements. The default setting is to suppress anything smaller than 2. Increasing this to 30 will allow a typical user to hold the pen still enough to see the hover text. This can be done by the following command:

xsetwacom set "Wacom Intuos Pro S Pen stylus" suppress 30

 

Configure the Wacom tablet to be USB bridged on the zero client.

On multi-monitor workstations the tablet is mapped to the entire desktop by default. If a tablet is mapped to a single display on a multi-monitor workstation, configure both the zero client tablet mapping setting and the host tablet mapping setting. Use the Zero client OSD User Setting > Tablet Mapping screen to map the tablet to a single display. Change the host tablet mapping setting by configuring the xsetwacom MapToOutput setting. The local and remote cursors will not be in sync if the zero client and host settings are not configured properly.

Enable the USB permissions on the Zero Client to bridge the Wacom device. More information can be found in the [Zero Client firmware Administrators' Guide. ](http://www.teradici.com/web-help/pcoip_zero_client/tera2/6.1.0/#05_Managing/16_Configuring%20USB.htm?Highlight=USB%20osd)

Below is a script that will install a known working kernel version, ensure it is the default booted kernel and that updates will not change the default kernel or remove the working version. It should be run as root.

#!/bin/sh

KERNEL_VERSION=3.10.0-693.21.1.el7

# ensure the default is set to the saved entry
sed -i 's/GRUB_DEFAULT=.*/GRUB_DEFAULT=saved/' /etc/default/grub

# make sure installing a new kernel package does not change the saved entry
sed -i 's/UPDATEDEFAULT=.*/UPDATEDEFAULT=no/' /etc/sysconfig/kernel

# install kernel/kernel-devel for the latest known working kernel version
yum install -y kernel-${KERNEL_VERSION} kernel-devel-${KERNEL_VERSION}

# set the installonly attribute to keep so that installing new kernels does not remove our known working kernel
yumdb set installonly keep kernel-${KERNEL_VERSION}

# find the name of the kernel we just installed in the grub config
GRUB_KERNEL_NAME="$(awk -F\' /^menuentry/{print\$2} /etc/grub2.cfg | grep ${KERNEL_VERSION} | grep -vi rescue)"

# set the grub default
eval grub2-set-default \"${GRUB_KERNEL_NAME}\"

# regenerate the grub config
grub2-mkconfig -o /boot/grub2/grub.cfg

 

In order to use MapToOutput to map the Wacom tablet to a particular display, one must set the tablet mapping in the Zero Client OSD. From User Settings -> Tablet, use the stylus to select the corresponding display. Click OK to save the setting.

Remove the Microsoft Azure, AWS, or Google Cloud kernel and install a generic one. Steps: 1. Check that current packages are installed:

    sudo dpkg -l "usb"
    sudo dpkg -l "linux-image"
    sudo dpkg -l "linux-head"

1. Remove Azure or AWS specific kernel packages: * *Azure*:

        sudo apt remove linux-image-azure linux-image-X.X.X-X-azure
        sudo apt remove linux-headers-X.X.X-X-azure

* *AWS*:

        sudo apt remove linux-image-aws linux-image-X.X.X-X-aws
        sudo apt remove linux-headers-X.X.X-X-aws

* *GCP*:

        sudo apt remove linux-image-gcp linux-image-X.X.X-X-gcp
        sudo apt remove linux-headers-X.X.X-X-gcp

1. Install generic kernel packages:

    sudo apt install linux-image-generic
    sudo apt install linux-headers-generic

1. Reboot VM 1. Install USB package:

    sudo apt install --reinstall usb-vhci-dkms

1. Install PCoIP agent and Wacom driver 1. Reboot VM 1. To verify, launch a PCoIP session:

    sudo ll /dev/uhid
    sudo lsmod |grep -i usb
    sudo lsmod |grep -i wacom

 

[sssd[be[<domain>]]] [ipa_pam_access_handler_done] (0x0020): No HBAC rules find, denying access

Add a HBAC service for the pcoip-session PAM service and any necessary HBAC rules to allow users to connect via PCoIP. Further information on HBAC: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/linux_domain_identity_authentication_and_policy_guide/configuring-host-access

Manually set timezone on the host Virtual Machine.

1. Delete the contents of C:\ProgramData\Teradici\PCoIPAgent\licensing\5 in Windows, or /var/lib/pcoip-agent/licensing/5 (requires root permissions) in Linux 2. Restart the appropriate agent service (PCoIP Graphics Agent or PCoIP Standard Agent on Windows, or pcoip-agent on Linux). 3. If using Teradici Cloud Licensing (not using a local license server), re-register the host.

This version of trusted storage is not supported.

1. Delete the contents of C:\ProgramData\Teradici\PCoIPAgent\licensing\5 in Windows, or /var/lib/pcoip-agent/licensing/5 (requires root permissions) in Linux 2. Restart the appropriate agent service (PCoIP Graphics Agent or PCoIP Standard Agent on Windows, or pcoip-agent on Linux) 3. If using Teradici Cloud Licensing (not using a local license server), re-register the host.

Unity is not supported with the PCoIP Linux Agent. Instead, use kubuntu-desktop.

Reduce the number of monitors, or change the vGPU profile to increase the frame buffer memory.

Do not rotate the monitor.

Switch the daemon to run in per-user mode, which is the default.

NVIDIA driver 367.* for Linux Ubuntu or RHEL 7.2 will require an update to the hypervisor's VBIOS to the following versions: GRID K1: 80.07.AF.00.00 or higher GRID K2: 80:04:BA:00.00 or higher

Manually delete the undesired taskbars.