Contrast and brightness, Detection thresholds | Avocent DSR1021

				Chapter 5: The Video Viewer	63

	Table 5.2: Manual VIdeo Adjust Dialog Box Descriptions

	Letter	Description	Letter	Description

	A	Image Capture Width	H	Pixel Noise Threshold

	B	Pixel Sampling/Fine Adjust	I	Automatic Video Adjustment

	C	Image Capture Horizontal Position	J	Refresh Image

	D	Image Capture Vertical Position	K	Adjustment bar

	E	Contrast	L	Video Test Pattern

	F	Brightness	M	Performance Monitor

	G	Block Noise Threshold	N	Close button

2.Click the icon corresponding to the feature you wish to adjust.

3.Move the Contrast slider bar and then fine-tune the setting by clicking the Min (-) or Max (+) buttons to adjust the parameter for each icon pressed. The adjustments display immediately in the Video Viewer window.

4.When finished, click Close to exit the Manual Video Adjust dialog box.

Image capture width, pixel sampling/fine adjust, image capture horizontal position and image capture vertical position

The Image Capture Width, Pixel Sampling/Fine Adjust, Image Capture Horizontal Position and Image Capture Vertical Position adjustments affect how the target video is captured and digitized and are seldom changed.

The image capture parameters are automatically changed by the Automatic Adjustment function. A special image is required on the target in order to make accurate adjustments independently.

Contrast and brightness

If the image in the Video Viewer window is too dark or too light, select Tools - Automatic Video Adjust or click the Automatic Video Adjust button. This command is also available in the Video Adjustments dialog box. In most cases, this corrects video problems.

In cases where clicking on Auto Adjust several times does not set the contrast and brightness as desired, adjusting the contrast and brightness manually can help. Increase the brightness. Do not go more than 10 increments before moving the contrast. Generally, the contrast should be moved very little.

Detection thresholds

In some cases, noise in the video transmission keeps the packets/sec count up, which is indicated by little dots changing in the area of the cursor when it is moved. Varying the threshold values may result in “quieter” screens and can improve cursor tracking.

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Avocent DSR1021 manual Contrast and brightness, Detection thresholds

Contents

DSR Switch Power on DSR1021/1022 Switch USA Notification Japanese Approvals Safety and EMC Standards Table of Contents Local Port Operation Terminal Operations Index List of Figures Viii DSR1021/1022 Switch Installer/User Guide List of Tables DSR1021/1022 Switch Installer/User Guide Reduce cable bulk Features and Benefits Access the DSR1021/1022 switch via network connection Two modes of access to the DSR1021/1022 switchSimple access to any target device DSR1021/1022 switch Ethernet DSView Modem Rack Mount Safety Considerations Safety Precautions DSR 1021/1022 Switch Connectivity Installation Installation Overview Setting up your networkInstalling the DSR1021/1022 switch Digital User Ethernet CordConnections Getting Started Connecting the DSR1021/1022 Switch HardwareItems supplied with the DSR1021/1022 switch To connect and power on your DSR1021/1022 switch To connect a Dsriq module to a server DSR1021/1022 switch Verifying the ConnectionsTo connect a Dsriq module to a serial device Setting Up the DSView Software Configuring the Web Server and DSView 3 SoftwareAdjusting Mouse Settings on Target Devices Setting up the built-in web server Microsoft Windows Click the Pointer Options tab Linux Installation 16 DSR1021/1022 Switch Installer/User Guide Unix 18 DSR1021/1022 Switch Installer/User Guide Novell NetWare Apple Mac OS To access the Oscar interface Main dialog box Controlling Your System at the Local PortViewing and Selecting Ports and Servers Viewing the status of your DSR1021/1022 switching system Selecting target devicesTo select target devices To select the previous target device Soft switchingTo configure the Oscar interface screen delay To soft switch to a target device Escape Navigating the Oscar Interface Local Port Operation Configuring Oscar Interface Menus To access the Oscar interface Setup dialog box To access the Oscar interface Names dialog boxAssigning target device names Names Dialog Box To assign names to target devices To access the Oscar interface Devices dialog box Assigning device typesTo list target devices alphabetically by name To assign a device type Changing the display behavior To choose the display order of target devices To access the Oscar interface Menu dialog box To set a Screen Delay Time for the Oscar interface To access the Oscar interface Flag dialog boxControlling the status flag Flag Dialog Box To determine how the status flag is displayed Broadcasting to target devices To access the Oscar interface Broadcast dialog box Using Scan mode To broadcast to selected target devicesTo turn off Broadcasting 11 Scan Dialog Box To add target devices to the Scan list To remove a target device from the Scan list To start the Scan mode Setting local port Screen Saver options To cancel Scan modeTo access the Oscar interface Screen Saver dialog box To set the Screen Saver options To exit Screen Saver mode and log in to the local port Setting the keyboard country code To immediately turn on the screen saverTo set the keyboard country code for Sun servers 40 DSR1021/1022 Switch Installer/User Guide To access the Oscar interface Commands dialog box Managing Server Tasks Using the Oscar Interface Viewing and disconnecting user connections To view current user connectionsTo disconnect a user To reset the PS/2 mouse and keyboard values Resetting your PS/2 keyboard and mouse To display version information Displaying version information Click X to close the Dsriq Version dialog box 46 DSR1021/1022 Switch Installer/User Guide To log in to the DSR web server Overview of the DSR1021/1022 Web Server Describes some of the DSR Explorer window areas About the DSR Explorer Window Using the side navigation bar Using the top option barBookmarking a window Internet Explorer only Launching a KVM session Logging Out Managing a DSR web server device To disconnect an active KVM session Administrator onlyRebooting the appliance To reboot the DSR1021/1022 switch remotely Managing Local Accounts Managing Device Properties Viewing and changing appliance configuration information Power Controlling Target Devices Video Viewer minimum requirements About the Video Viewer Window To enable, disable or configure the session time-out Launching a KVM SessionSession time-out Video Viewer Window Normal Window Mode Video Viewer Window Features 58 DSR1021/1022 Switch Installer/User Guide To specify a toolbar hide time Setting the Window SizeTo change the Video Viewer window resolution Changing the toolbar Adjusting the View To align the mouse cursorsTo refresh the screen Adjusting color depth To enable or disable full screen modeTo enable automatic, full or manual scaling To manually adjust the video quality of the window Additional Video Adjustment Detection thresholds Contrast and brightness Refresh image Adjusting Mouse OptionsAutomatic video adjustment Block noise threshold and pixel noise threshold Cursor Type To enter single cursor mode Mouse Scaling To select a key for exiting single cursor modeTo exit single cursor mode To change the mouse cursor setting Using Keyboard Pass-through Mouse Alignment and SynchronizationTo realign the mouse Saving the View Using Macros To close a Video Viewer window session Closing a Video Viewer Window Session 70 DSR1021/1022 Switch Installer/User Guide Network Configuration To configure network settings using the Console menuConsole Menu 72 DSR1021/1022 Switch Installer/User Guide Terminal Operations Local User Accounts Security ConfigurationTo add a user to the DSR1021/1022 switch database Other Console Main Menu Options To remove a user from the DSR1021/1022 switch database Console PasswordReset Certificates To rename a user in the DSR1021/1022 switch database Reset Appliance Secure ModeEnable Debug Messages Restore Factory Defaults Appendices Appendix a Flash Upgrades 78 DSR1021/1022 Switch Installer/User Guide Before you begin Appendix B Using DSView Software Over a Modem Connection DSRIQ-SRL module modes Appendix C Using DSRIQ-SRL Modules Ctrl-F8 To configure a DSRIQ-SRL module Creating a DSRIQ-SRL module macroTo create a macro DSRIQ-SRL module pinouts To use History mode UTP copper cabling Appendix D UTP Cabling Cabling installation, maintenance and safety tips Table E.1 DSR1021/1022 Switch Product Specifications Appendix E Technical Specifications Type Serial RS-232 Connectors DB9 Male Appendix F Sun Advanced Key Emulation Appendices Appendix G Technical Support Numerics Index Module 7, 8, 9, 10, 11, 51, 77, 80 Mode 81, 82 PPP Status LED 96 DSR1021/1022 Switch Installer/User Guide Page 590-427-501B