On all GPUs that support ECC memory and, therefore, dynamic page retirement, additional frame buffer is allocated for dynamic page retirement. The amount of frame buffer in Mbytes that is reserved for the higher compression overhead in vGPU types with 12 Gbytes or more of frame buffer on GPUs based on the Turing architecture.
For all other vGPU types, compression-adjustment is 0. These issues occur when the applications demand more frame buffer than is allocated to the vGPU. To reduce the possibility of memory exhaustion, vGPU profiles with Mbytes or less of frame buffer support only 1 virtual display head on a Windows 10 guest OS. Use a profile that supports more than 1 virtual display head and has at least 1 Gbyte of frame buffer. To reduce the possibility of memory exhaustion, NVENC is disabled on profiles that have Mbytes or less of frame buffer.
Application GPU acceleration remains fully supported and available for all profiles, including profiles with MBytes or less of frame buffer. NVENC support from both Citrix and VMware is a recent feature and, if you are using an older version, you should experience no change in functionality. On servers with 1 TiB or more of system memory, VM failures or crashes may occur. However, support for vDGA is not affected by this limitation. The guest driver is from a release in a branch two or more major releases before the current release, for example release 9.
The FRL setting is designed to give good interactive remote graphics experience but may reduce scores in benchmarks that depend on measuring frame rendering rates, as compared to the same benchmarks running on a pass-through GPU. The FRL can be reverted back to its default setting by setting pciPassthru0.
The reservation is sufficient to support up to 32GB of system memory, and may be increased to accommodate up to 64GB by adding the configuration parameter pciPassthru0. To accommodate system memory larger than 64GB, the reservation can be further increased by adding pciPassthru0.
We recommend adding 2 M of reservation for each additional 1 GB of system memory. The reservation can be reverted back to its default setting by setting pciPassthru0. Only resolved issues that have been previously noted as known issues or had a noticeable user impact are listed. As a result, the validation check in the service fails, which causes the client to fail to acquire a license. No resolved issues are reported in this release for VMware vSphere. When this issue occurs, XID error 31 is written to the log files on the destination hypervisor host.
This issue affects migration from a host that is running a vGPU manager 11 release before Upgrade the host that is running a vGPU manager 11 release to release When this issue occurs, the following messages are written to the log file on the hypervisor host:. This issue is resolved in the latest For more information, refer to the documentation for the version of VMware Horizon that you are using:.
The address must be specified exactly as it is specified in the client's license server settings either as a fully-qualified domain name or an IP address. Ensure that sufficient frame buffer is available for all the virtual displays that are connected to a vGPU by changing the configuration in one of the following ways:. After the migration, the destination host and VM become unstable. Depending on the host configurations, the following messages might also be written to the log file:.
After a Teradici Cloud Access Software session has been idle for a short period of time, the session disconnects from the VM. This issue affects only Linux guest VMs. This issue is caused by the omission of version information for the vGPU manager from the configuration information that GPU Operator requires.
This issue occurs if the driver is upgraded by overinstalling the new release of the driver on the current release of the driver while the nvidia-gridd service is running in the VM. When a window is dragged across the desktop in a Citrix Virtual Apps and Desktops session, corruption of the session in the form of residual window borders occurs.
This issue affects only Citrix Virtual Apps and Desktops version 7 When this issue occurs, the VM becomes unusable and clients cannot connect to the VM even if only a single display is connected to it.
When this issue occurs, the error One or more devices pciPassthru0 required by VM vm-name are not available on host host-name is reported on VMware vCenter Server.
Unable to allocate video memory. Only some applications are affected, for example, glxgears. Other applications, such as Unigine Heaven, are not affected. This behavior occurs because Display Power Management Signaling DPMS for the Xorg server is enabled by default and the display is detected to be inactive even when the application is running.
When DPMS is enabled, it enables power saving behavior of the display after several minutes of inactivity by setting the frame rate to 1 FPS. When VMware Horizon is used with the Blast Extreme display protocol, frame buffer consumption increases over time after multiple disconnections from and reconnections to a VM. This issue occurs even if the VM is in an idle state and no graphics applications are running.
Computer Management shows problems with the primary display device. After multiple VMs configured with vGPU on a single hypervisor host are migrated simultaneously, the remote desktop session freezes with an assertion failure and XID error It does not occur if only a single VM is migrated. The rebuild of the driver fails because the compiler version is incorrect. Any attempt to reinstall the driver fails because the kernel fails to build. Stop and restart the Xorg service and nv-hostengine on the ESXi host.
Wait for 1 second to allow nv-hostengine to stop. When vMotion is used to migrate a VM configured with vGPU to another host, users' sessions may freeze for up to several seconds during the migration. Administrators can mitigate the effects on end users by avoiding migration of VMs configured with vGPU during business hours or warning end users that migration is about to start and that they may experience session freezes.
End users experiencing this issue must wait for their sessions to resume when the migration is complete. When a VM configured with vGPU is migrated to another host, the migration stops before it is complete. After the migration stops, the VM is no longer accessible. This issue occurs if the ECC memory configuration enabled or disabled on the source and destination hosts are different. The ECC memory configuration on both the source and destination hosts must be identical.
Reboot the hypervisor host to recover the VM. Before attempting to migrate the VM again, ensure that the ECC memory configuration on both the source and destination hosts are identical. Even with this patch, migration of a VM configured with vGPU requires the ECC memory configuration on both the source and destination hosts to be identical.
When a VMware Horizon session with Windows 7 is connected to four displays, a black screen is observed on one or more displays. This issue occurs because a VMware Horizon session does not support connections to four 4K displays with Windows 7. For example, host CPU utilization when only a small number of VMs are running is as high as when several times as many VMs are running.
Because of a known limitation with NvFBC, a frame capture while the interactive logon message is displayed returns a blank screen. An NvFBC session can capture screen updates that occur after the session is created. Before the logon message appears, there is no screen update after the message is shown and, therefore, a black screen is returned instead.
This default setting enables 2D DirectX applications such as Microsoft Office to use software rendering, which can be more efficient than using the GPU for rendering. Change the local computer policy to use the hardware graphics adapter for all RDS sessions. Set the Use the hardware default graphics adapter for all Remote Desktop Services sessions option. The error stack in the task details on the vSphere web client contains the following error message:.
Increase the maximum switchover time by increasing the vmotion. This behavior is a result of the mechanism that is used to measure GPU engine utilization.
The command nvidia-smi vgpu -m shows that vGPU migration is supported on all hypervisors, even hypervisors or hypervisor versions that do not support vGPU migration. Depending on the combination of options set, one of the following error messages is seen when the VM is powered on:. This message is seen when the following options are set:. When nvidia-smi is run without any arguments to verify the installation, the following error message is displayed:.
In some situations, after the VM is powered on, the guest OS crashes or fails to boot. When windows for 3D applications on Linux are dragged, the frame rate drops substantially and the application runs slowly.
On Red Hat Enterprise Linux 6. Disabling the GUI for licensing resolves this issue. To prevent this issue, the GUI for licensing is disabled by default. In environments where non-persistent licensed VMs are not cleanly shut down, licenses on the license server can become exhausted. For example, this issue can occur in automated test environments where VMs are frequently changing and are not guaranteed to be cleanly shut down.
The licenses from such VMs remain checked out against their MAC address for seven days before they time out and become available to other VMs. If VMs are routinely being powered off without clean shutdown in your environment, you can avoid this issue by shortening the license borrow period. To shorten the license borrow period, set the LicenseInterval configuration setting in your VM image. Memory exhaustion can occur with vGPU profiles that have Mbytes or less of frame buffer.
The root cause is a known issue associated with changes to the way that recent Microsoft operating systems handle and allow access to overprovisioning messages and errors. If your systems are provisioned with enough frame buffer to support your use cases, you should not encounter these issues. Additionally, you can use the VMware OS Optimization Tool to make and apply optimization recommendations for Windows 10 and other operating systems.
If you do not change the default graphics type you will encounter this issue. When memory usage is monitored from inside the VM, no memory usage alarm is shown. For VMware vSphere releases before 6. Any attempt to install the driver on a VM on a host in an automated DRS cluster fails with the following error:. Ensure that the automation level of the DRS cluster is set to Manual.
Click Apply to accept the configuration. The additional vGPU devices are present in Windows Device Manager but display a warning sign, and the following device status:. This is not a currently supported configuration for vGPU. If multiple VMs are started simultaneously, vSphere may not adhere to the placement policy currently in effect. Sleep is not supported on vGPU and attempts to use it will lead to undefined behavior. Installing the VMware Horizon agent will disable the Sleep option.
For example, on a server configured with G of memory, these errors may occur if vGPU-enabled VMs are assigned more than G of memory. Reduce the total amount of system memory assigned to the VMs. On a system running a maximal configuration, that is, with the maximum number of vGPU VMs the server can support, some VMs might fail to start post a reset or restart operation. The GPU utilization remains high for the duration of the Horizon session even if there are no active applications running on the VM.
This document is provided for information purposes only and shall not be regarded as a warranty of a certain functionality, condition, or quality of a product.
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Search through a range of vmware product documentation, kb articles, technical papers, release notes, vmware validated designs, and videos. Vmware tools is a suite of utilities that enhances the performance and improves management of the virtual machine s guest operating system. Your graphics card gpu is running with outdated drivers that need to be updated. Vmware workstation pro is the industry standard for running multiple operating systems as virtual machines vms on a single linux or windows pc.
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For each vGPU, the usage statistics in the following table are reported once every second. Try these troubleshooting techniques to address general problems or a specific symptom. Often, an issue with the GPU is identified in the vmkernel. To make sure that the graphics adapter is installed correctly, run the following command on the ESXi host:.
The output should resemble the following example, even if some of the particulars differ:. If you installed a second, lower-end GPU in the server, it is possible that the order of the cards in the PCIe slots will choose the higher-end card for the ESXi console session. If the correct devices were present when you tried the previous troubleshooting methods, view the Xorg log file to see if there is an obvious issue. This section describes specific issues that could arise in graphics acceleration deployments, and presents probable solutions.
If you get a vSphere error about sched. Note : The number in quotes, in this example, , must match the amount of configured VM memory.
Use a profile that supports more than one virtual display head and has at least 1 GB of frame buffer. To reduce the possibility of memory exhaustion, vGPU profiles with MB or less of frame buffer support only one virtual display head on a Windows 10 guest OS.
Turn off the frame rate limiter FRL by adding the configuration parameter pciPassthru0. The FRL setting is designed to give a good interactive remote graphics experience but might reduce scores in benchmarks that depend on measuring frame-rendering rates, as compared to the same benchmarks running on a pass-through GPU. Windows has stopped this device because it has reported problems. Code Add the configuration parameter pciPassthru0. This setting increases the portion of reserved frame buffer to 64 GB.
The default reservation is sufficient to support only up to 32 GB of system memory. VMware Horizon offers three technologies for hardware-accelerated graphics, each with its own advantages.
With the information in this guide, you can install, configure, and manage your 3D workloads for Horizon 7 and later on vSphere 6. Hilko has 20 years of experience in end-user computing. This message will close in seconds. You are about to be redirected to the central VMware login page. Deploying Hardware-Accelerated Graphics with VMware Horizon VMware Horizon 7 and later Introduction Engineers, designers, and scientists have traditionally relied on dedicated graphics workstations to perform the most demanding tasks, such as manipulating 3D models and visually analyzing large data sets.
Purpose of Hardware-Accelerated Graphics Moving the graphics acceleration hardware from the workstation to a server is a key architectural innovation. With appropriate network bandwidth and suitable remote client devices, IT can now offer the most advanced users an immersive 3D-graphics experience while freeing them from the limitations of the old computing metaphor: Fewer physical resources are needed.
The wait time to open complex models or run simulations is greatly reduced. Users are no longer tied to a single physical location. What Is VMware Horizon? Intended Audience This guide is for administrators deploying hardware-accelerated graphics in VMware Horizon, or anyone interested in the technology. Virtual Shared Pass-Through Graphics Acceleration Virtual shared pass-through graphics acceleration allows a graphical processing unit to be shared with multiple users instead of focused on only one user.
Comparison of the Types of Graphics Acceleration The following table compares the features of the three types of graphics acceleration. Table 2: Hardware Requirements for Hardware-Accelerated Graphics Component Description Physical space for graphics cards Many high-end GPU cards are full height, full length, and double width, with most taking up two slots on the motherboard, but using only a single PCIe x16 slot.
Use Cases for Hardware-Accelerated Graphics Following are the typical use cases for the different types of hardware-accelerated graphics.
Knowledge Workers Office workers and executives fall into the knowledge-worker category, typically using applications such as Microsoft Office, Adobe Photoshop, and other non-specialized end-user applications. Virtual shared graphics acceleration vSGA — When consolidation matters most. Power Users Power users consume more complex visual data, but their requirements for manipulation of large data sets and specialized software are less intense than for designers, or they use only viewers like Autodesk DWG TrueView.
Designers are best matched with one of the following: Virtual shared pass-through graphics acceleration MxGPU or vGPU — When availability or consolidation matters most. Virtual dedicated graphics acceleration vDGA — When every bit of performance counts. Figure 1: Consolidation and Performance Overview. Installation, Configuration, and Setup This section gives details on how to install and configure the following components for graphics acceleration: ESXi 6.
Put the host in maintenance mode. Reboot and take the host out of maintenance mode. If you are using vSphere 6. The Edit Host Graphics Settings window appears. Select the check box for the GPU, and reboot.
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