http://www.sgi.com/tech/relnotes/vc.html (Silicon Surf Promotional CD, 01/1995)5 Known Problems and Workarounds
- 1 - 1. Introduction VideoCreator allows you to record high-resolution images generated by IRIS workstations onto standard or professional videotape. You can record single images in a frame-by-frame recording mode to produce computer-generated animation, or capture (to videotape) a scan converted version of the workstation's high-resolution video signal in real time. Note: Your software package includes a Software License Agreement. This software is provided to you solely under the terms and conditions of the Software License Agreement. Please take a few moments to review the Agreement. This document contains the following chapters: 1. Introduction 2. Installation Information 3. Configuration Information 4. Bug Fixes 5. Known Problems and Workarounds 6. Documentation Errors 1.1 Release_Identification_Information Following is the release identification information for VideoCreator: Software Product VideoCreator Version 1.5.2 System Software Requirements IRIX 5.2 or later 1.2 Online_Release_Notes After you install the online documentation for a product (the relnotes subsystem), you can view the release notes on your screen. If you have a graphics system, select ``Release Notes'' from the Tools submenu of the Toolchest. This displays the grelnotes(1) graphical browser for the online release notes. - 2 - Refer to the grelnotes(1) man page for information on options to this command. If you do not have a graphics system, you can use the relnotes command. Refer to the relnotes(1) man page for accessing the online release notes. 1.3 Product_Support Silicon Graphics, Inc., provides a comprehensive product support maintenance program for its products. If you are in North America and would like support for your Silicon Graphics-supported products, contact the Technical Assistance Center at 1-800-800-4SGI. If you are outside North America, contact the Silicon Graphics subsidiary or authorized distributor in your country. - 1 - 2. Installation_Information This chapter lists supplemental information to the IRIS Software Installation Guide. The information listed here is product-specific; use it with the Installation Guide to install this product. 2.1 VideoCreator_Subsystems The VideoCreator software includes these subsystems: vc.man.diags VideoCreator diagnostic manual pages vc.man.relnotes VideoCreator release notes vc.man.vc VideoCreator manual pages vc.sw.demos VideoCreator demos vc.sw.diags VideoCreator diagnostics vc.sw.vc VideoCreator software 2.2 VideoCreator_Subsystem_Disk_Space_Requirements This section lists the subsystems (and their sizes) of the VideoCreator software: If you are installing this software for the first time, the subsystems marked ``default'' are the ones that are installed if you use the ``go'' menu item. To install a different set of subsystems, use the ``install,'' ``remove,'' ``keep,'' and ``step'' commands in inst to customize the list of subsystems to be installed, then select the ``go'' menu item. Note: The listed subsystem sizes are approximate. Refer to the IRIS Software Installation Guide for information on finding exact sizes. Subsystem Name Subsystem Size (512-byte blocks) vc.man.diags 40 vc.man.relnotes (default) 14 vc.man.vc (default) 200 - 2 - vc.sw.demos (default) 2500 vc.sw.diags 660 vc.sw.vc (default) 4800 2.3 Installation_Method All of the subsystems for VideoCreator can be installed using IRIX. You do not need to use the miniroot. Refer to the IRIS Software Installation Guide for complete installation instructions. - 1 - 3. Configuration_Information If you have a PAL format VideoCreator, create a setup file in the distribution directory (/usr/video/vc) or in your home directory. This setup file tells the VideoCreator software that the default video format is PAL. Refer to Chapter 1 in the VideoCreator Programmer's Guide for information on the setup file. - 1 - 4. Bug_Fixes The following VideoCreator bug was corrected in this release. The description is followed by a Silicon Graphics bug report number in the form (SCR #####). VideoCreator now supports the 1024x768 display resolution. (SCR 64941). VideoCreator version 1.5 software could falsely report the presence of a VME VideoCreator. - 1 - 5. Known_Problems_and_Workarounds Due to an incompatibility between the system PROM in certain Personal IRIS systems and the SCSI-configured VideoCreator, the following message may appear on power-up: sc0: Unexpected transfer phase. State 4a Phase=10 scsi(0,4,0) transfer aborted (Hardware error) Diagnostic failed This message should be ignored. Press any key to acknowledge the message and continue the startup. Root permission is required to access VME versions of the VideoCreator in Challenge and Onyx systems. The standard commands and demos achieve this by running in "setuid root" mode. If you compile your own programs that access the VideoCreator in one of these system, you must either run them as root, or configure them for setuid mode. The following sequence of commands will modify the program "myprog" to run with root permissions: su root chown root myprog chgrp sys myprog chmod 4755 myprog exit - 1 - 6. Documentation_Errors Document version 1.0 of the VideoCreator Programmer's Guide had an incorrect description of the genlock capabilities of VideoCreator. The manual incorrectly states that the genlock circuit requires RS-170A or CCIR color black, 1V P-P into 75 ohms; the circuit actually accepts NTSC or PAL composite video, 1V P-P into 75 ohms. A manual errata sheet has been issued (document number 007-1368-010).