Shadow Display

Menu path: Setup > Sessions > NoMachine NX Client > [Session Name] > Shadow Display

This area is active if the parameter Setup > Sessions > NoMachine NX Client > [Session Name] > Session is set to "Shadow".

These settings are only relevant up to NoMachine NX Version 3.5.

• Display: Size of the display area that is used for the session
  Possible values:

  • 640x480

  • 800x600

  • 1024x768

  • Available area:

  • Fullscreen: The session will be shown in fullscreen mode, i. e. stretched across the entire screen.v (Default)

  • Custom: The width and height can be freely defined.

  • Multi-monitor full screen:

• Width: Width of the display area for the session (Default: 800)

• Height: Height of the display area for the session (Default: 600)

• Enable custom settings

  ☑ The image transmission properties can be changed on the client side.

  ☐ The image transmission properties are specified on the server side only. (default)

  • Use both JPEG and RGB compression: JPEG compression (lossy) as well as RGB compression (lossless) will be used. The level of JPEG compression will be adjusted dynamically depending on the compressibility.

  • Use JPEG and RGB compression, and use custom JPEG quality: JPEG compression (lossy) as well as RGB compression (lossless) will be used. The level of JPEG compression is specified by the parameter JPEG quality.

  • Only use JPEG compression: Only JPEG compression (lossy) will be used. The level of JPEG compression will be adjusted dynamically depending on the compressibility.

  • Use JPEG compression and custom JPEG quality: Only JPEG compression (lossy) will be used. The level of JPEG compression is specified by the parameter JPEG quality.

  • Only use RGB compression: Only RGB compression (lossless) will be used.

  • Use plain X images: The images will be transmitted as bitmaps without compression.

  • JPEG quality: If Use JPEG and RGB compression and use custom JPEG quality or Use JPEG compression and custom JPEG quality is enabled, the quality of images in JPEG format can be defined (default: 6).

• Enable render extension

  ☑ The "Render" or "XRender" protocol extension is enabled. This allows a transparency effect where windows overlap on the screen. (default)

• Disable the backing store

  ☑ The cache is disabled. This reduces the amount of memory needed. However, the speed of the session may be reduced.

  ☐ The cache is enabled. (default)

• Disable the composite extension

  ☑ The "Composite" protocol extension is disabled. Transparency effects where windows overlap on the screen are not possible.

  ☐ The "Composite" protocol extension is enabled. (default)

• Disable the shared memory extension

  ☑ The shared memory extension is disabled.

  ☐ The shared memory extension is enabled. (default)

• Disable emulation of shared pixmaps

  ☑ The emulation of shared images (shared pixmaps) is disabled.

  ☐ The emulation of shared images (shared pixmaps) is enabled. (default)