Tru64 UNIX Troubleshooting: Diagnosing and Correcting System Problems

Chapter 12: Display Problems

Overview

Experience is that marvelous thing that enables you to recognize a mistake when you make it again.

Franklin P. Jones

In this final chapter, we discuss problems that arise with graphical displays connected to Tru64 UNIX systems. These problems fall into three general classes:

  1. No display

  2. Incorrect display appearance

  3. Problems with the Common Desktop Environment (CDE)

Each of these problem types is discussed in the following sections. Before beginning, however, there are a few general troubleshooting techniques worth mentioning. These techniques apply to all types of display problems.

12.1 General Troubleshooting Techniques

There are three generic issues that can lead to display problems:

  1. Obsolete system firmware

  2. Incorrect EISA or ISA configuration

  3. Incorrect Open3D version

These can cause a wide variety of problems, so it's a good idea to check for them early in the process of troubleshooting any display problem.

12.1.1 Obsolete System Firmware

Out-of-date system (console) firmware can cause a graphics display to operate incorrectly or not at all. To check the system firmware version, enter the following command at the console prompt:

   >>> SHOW VERSION   V6.1-1011 Oct 11 2001 13:39:58

If your system is already booted, you can still determine the console firmware version without having to shut down the system. The following command will retrieve the firmware version on some but not all Alpha systems:

   # consvar -g version   version = V6.1-1011 Oct 11 2001 13:39:58

If the "consvar" command doesn't work on your system, it's possible to...

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