#NOMACHINE RUNNOING SLOW DRIVERS#
#NOMACHINE RUNNOING SLOW SOFTWARE#

In the NoMachine virtual desktop session, open a terminal and launch the command: Sudo /etc/NX/nxserver -virtualgl-installģ) Edit /usr/NX/etc/node.cfg and change DefaultDesktopCommand and CommandStartGnome keys to have:ĭefaultDesktopCommand '/etc/gdm/Xsession 'env XDG_SESSION_TYPE=x11 /usr/NX/scripts/vgl/vglrun gnome-session -session=gnome''ĬommandStartGnome '/etc/gdm/Xsession 'env XDG_SESSION_TYPE=x11 /usr/NX/scripts/vgl/vglrun gnome-session -session=gnome''Ĥ) Keep the EnableVirtualGLSupport key disabled (default): If variable is set to 'nvidia' you need to edit file /usr/NX/node.cfg and change the NoMachine desktop startup command in order to clear variable or force it to 'mesa':ĭefaultDesktopCommand '/etc/gdm/Xsession 'env _GLX_VENDOR_LIBRARY_NAME=mesa XDG_SESSION_TYPE=x11 gnome-session -session=gnome''īy enabling the VirtualGL support, it's possible to use the graphics card (GPU) for rendering the desktop.Įxecute the following procedure from a terminal. Ln -snf libGLX_mesa.so.0 libGLX_indirect.so.0Ĭheck if variable _GLX_VENDOR_LIBRARY_NAME is set in the environment: Change the link to point to the Mesa library: Usually it points to the NVIDIA libGLX library.

Search in the list the symbolic link 'libGLX_indirect.so.0'. In a terminal, change directory to /usr/lib64 and list the GLX libraries by running: In order to get llvmpipe working in virtual desktops, ensure that Mesa GL dispatch is used as fallback. In the latest RHEL 7 releases (7.5 and later), multiple OpenGL API implementations are arbitrated by a vendor-neutral dispatch layer called libglvnd. Benefit from the NVIDIA card to accelerate OpenGL applications in the NoMachine virtual desktop through VirtualGL Change the OpenGL library configuration to turn LLVMpipe on so that it can be used in the NoMachine virtual desktops orĢ. There are two possible alternative solutions to restore proper performance without removing the NVIDIA package:ġ. This often produces noticeable effects on performance, for example less responsiveness to keyboard and mouse input. The LLVMpipe rasterizer is switched off as a consequence NoMachine virtual desktops use indirect rendering for OpenGL. Along with the video card driver, NVIDIA-specific OpenGL libraries are installed and the library search order used by the system is modified.

#NOMACHINE RUNNOING SLOW SOFTWARE#

However, performance issues could arise if NVIDIA proprietary software package is installed. In RHEL/CentOS, LLVMpipe is often enabled out-of-the-box and GNOME 3 works flawlessly in the NoMachine virtual desktops. In this case it's necessary to adopt the OpenGL direct rendering with LLVMpipe software rasterizer in order to get a software rendering with proper performance. This is the case of NoMachine virtual desktop sessions. shadows, animations, fading menu etc.) that are realized by using the software rendering when the graphics hardware is not available. GNOME 3 provides 3D desktop effects (e.g.

#NOMACHINE RUNNOING SLOW DRIVERS#

Proprietary NVIDIA drivers are installed on the system GNOME 3 desktop is running in the NoMachine virtual desktopģ. A NoMachine virtual desktop session is running on Red Hat Enterprise Linux (or CentOS)Ģ. This article is intended to address performance issues that could arise when the following conditions are all met:ġ. 6.4.x and RHEL versions previous than 7.5, please refer to: and. 6.4.x or later running on Red Hat Enterprise Linux (or CentOS) 7.5 or later.įor NoMachine versions older than v. This article applies to NoMachine server v.

Nomachine runnoing slow