RN-08686-001 _v15.0 | December 2022
Virtual GPU Software R525 for
Microsoft Windows Server
Release Notes
Virtual GPU Software R525 for Microsoft Windows Server RN-08686-001 _v15.0|ii
Table of Contents
Chapter1.Release Notes.................................................................................................... 1
1.1.NVIDIA vGPU Software Driver Versions...................................................................................1
1.2.Updates in Release 15.0...........................................................................................................1
Chapter2.Validated Platforms............................................................................................3
2.1.Supported NVIDIA GPUs and Validated Server Platforms......................................................3
2.1.1.Switching the Mode of a GPU that Supports Multiple Display Modes............................. 8
2.1.2.Switching the Mode of a Tesla M60 or M6 GPU...............................................................9
2.2.Hypervisor Software Releases................................................................................................. 9
2.3.Guest OS Support..................................................................................................................... 9
2.3.1.Windows Guest OS Support.............................................................................................10
2.3.2.Linux Guest OS Support...................................................................................................10
Chapter3.Known Issues................................................................................................... 12
3.1.NLS client fails to acquire a license with the error The allowed time to process response
has expired................................................................................................................................ 12
3.2.With multiple active sessions, NVIDIA Control Panel incorrectly shows that the system
is unlicensed..............................................................................................................................13
3.3.VP9 and AV1 decoding with web browsers are not supported on Microsoft Windows
Server 2019................................................................................................................................ 13
3.4.NVIDIA Control Panel is started only for the RDP user that logs on first............................14
3.5.After an upgrade of the Linux graphics driver from an RPM package in a licensed VM,
licensing fails.............................................................................................................................15
3.6.After an upgrade of the Linux graphics driver from a Debian package, the driver is not
loaded into the VM.................................................................................................................... 15
3.7.A licensed client might fail to acquire a license if a proxy is set......................................... 16
3.8.Disconnected sessions cannot be reconnected or might be reconnected very slowly with
NVWMI installed........................................................................................................................ 17
3.9.NVIDIA Control Panel fails to start if launched too soon from a VM without licensing
information.................................................................................................................................17
3.11.On Linux, the frame rate might drop to 1 after several minutes....................................... 19
3.12.Microsoft DDA fails with some GPUs.................................................................................. 20
3.13.DWM crashes randomly occur in Windows VMs.................................................................21
3.14.NVIDIA vGPU software graphics driver fails after Linux kernel upgrade with DKMS
enabled.......................................................................................................................................21
3.15.Blue screen crash occurs or no devices are found after VM reset.................................... 22
3.16.Frame capture while the interactive logon message is displayed returns blank screen... 23
3.17.RDS sessions do not use the GPU with some Microsoft Windows Server releases...........24
Virtual GPU Software R525 for Microsoft Windows Server RN-08686-001 _v15.0|iii
3.18.A segmentation fault in DBus code causes nvidia-gridd to exit on Red Hat Enterprise
Linux and CentOS......................................................................................................................24
3.19.No Manage License option available in NVIDIA X Server Settings by default.................... 25
3.20.Licenses remain checked out when VMs are forcibly powered off.................................... 26
Virtual GPU Software R525 for Microsoft Windows Server RN-08686-001 _v15.0|iv
Virtual GPU Software R525 for Microsoft Windows Server RN-08686-001 _v15.0|1
Chapter1. Release Notes
These Release Notes summarize current status, information on validated platforms, and
known issues with NVIDIA vGPU software and associated hardware on Microsoft Windows
Server.
Note: The most current version of the documentation for this release of NVIDIA vGPU software
can be found online at NVIDIA Virtual GPU Software Documentation.
1.1. NVIDIA vGPU Software Driver
Versions
Each release in this release family of NVIDIA vGPU software includes a specific version of the
NVIDIA Windows driver and NVIDIA Linux driver.
NVIDIA vGPU Software Version
NVIDIA Windows
Driver Version
NVIDIA Linux Driver
Version
15.0 527.41 525.60.13
Note:
All releases in this release family of NVIDIA vGPU software are compatible with all releases of
the NVIDIA vGPU software license server.
1.2. Updates in Release 15.0
New Features in Release 15.0
‣
Support for NVIDIA Virtual Compute Server (vCS) in Windows guest VMs
‣
DCH packaging of the NVIDIA vGPU software graphics driver for Windows guest OSes
As a result of this change, the path to the registry key for configuring NVIDIA vGPU
software licensing has changed. After an upgrade from a package that is not DCH
