HP-UX Desktop Troubleshooting Guide

7 Troubleshooting Techniques for Xserver
This section describes the commonly encountered problems related to Xserver start-up
and the troubleshooting techniques one needs to follow in case there are problems
related to start-up of Xserver.
This section discusses the following topics:
1. X start-up Flow
This section elaborates on the manual and automatic start-up of the Xserver. In
addition, this section also provides details on graphic cards that are supported
with different architectures of the HP-UX platform.
2. Troubleshooting Techniques
This section describes the various troubleshooting techniques that can be followed
if the Xserver fails to start-up. The Xserver may fail to start because of the following
reasons:
• Graphics card error
• Improper configuration of input devices
• Incorrect entries in start-up configuration files
• Incorrect value of kernel parameter
7.1 X start-up Flow
Xserver can be started either manually or automatically. The Xserver process is
automatically started when an HP-UX system is brought to run level 3. At run level 3,
the dtlogin process executes the X loader binary (/usr/bin/X11/X) in addition to
the child dtlogin process. This child dtlogin process then invokes dtgreet binary
which is seen as the login screen when Common Desktop Environment (CDE) starts-up.
Figure 7-1 is a pictorial description of this process:
7.1 X start-up Flow 27