Chapter 19: Using the Video Viewer

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will be adjusted to match the input resolution selected by the primary user of that channel. This will prevent the primary user’s display from being affected. If the target device resolution changes any time during a session, the display will be adjusted automatically.

When full scaling is enabled, the display window is sized to match the resolution of the server being viewed.

If users are allowed to override this profile setting, you may also control whether they may select a value higher than the profile setting. For example, when this control is enabled, if the video scaling setting in the profile is 768 x 576, users on a target device using that profile will not be able to select 1024 x 768. However, they could select a lower resolution such as 640 x 480.

If you enable Allow users to override this setting, or if no profile is assigned to the target device, users may specify the video scaling using Video Viewer menu commands. See Video commands on page 265.

Background refresh

The background refresh setting enables or disables background refresh.

When background refresh is enabled, a small portion of video data is constantly sent by the KVM switch to background refresh the Video Viewer window. When background refresh is disabled, the Video Viewer window is updated by the switch only when it determines that the target device video image has changed.

NOTE: This option is not available if the switch does not support background refresh or if the DSR Remote Operations software is being used to connect to the DSR switch viewing the target device. See DSR Remote Operations Software on page 364.

If you enable Allow users to override this setting, or if no profile is assigned to the target device, users may enable/disable background refresh using Video Viewer menu commands. Users may also use the Refresh Image command. See Video commands on page 265.

Managing KVM session profiles

Only appliance administrators may display, add, change or delete a KVM session profile. To assign a profile to a target device, the user must either be an appliance administrator or have unit configure or edit rights. These operations are all performed in the DSView 3 Explorer.

To display KVM session profile names and settings:

1.Click the Units tab.

2.Click Profiles in the top navigation bar. The KVM Session Profiles window will open, listing the profile names.

3.To view a profile’s settings, click the profile name, then click General, Cursor, Toolbar or Video in the side navigation bar to view the settings.

4.Click Close.

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Avocent SPC420 manual Managing KVM session profiles, Background refresh, To display KVM session profile names and settings