HP-UX Desktop Troubleshooting Guide

NOTE: Xvfb does not require either graphics card or input devices for its working,
so the above mentioned points are not applicable for Xvfb
7.2.1 Error due to unsupported graphics card
The Xserver may fail to start if it does not find any of the supported graphics card on
the system for the particular Xserver you are trying to run. For information on supported
graphics cards, see Table 7-1: Supported Graphics Cards.
Table 7-1 Supported Graphics Cards
Graphics cardsSystem architectureXserver
Requires ATI Radeon cards.
Device files such as /dev/gvid*
must be present.
Runs on both IA and PAXf86
Requires FXE cards. Device files
/dev/crt* must be present.
Runs only on PA machinesXhp
Does not require any graphics
card; serve as a virtual frame
buffer.
Runs on both IA and PA
machines
Xvfb
To check the graphics card available on the system run the following command:
# ioscan -kFC graphics | cut -f10 -d:
7.2.1.1 For Xf86
1. Run the following command to check if the OEM graphics device (ATI Radeon
family cards) is available on the system:
# ioscan -kd gvid_core
This command lists the gvid graphics device(s) connected to the system. If there
is no OEM graphics device connected to the system, then you can not run Xf86 on
the system. Check the physical connection of the device with the system.
2. If the gvid card is available on the system and if X continues to fail because of a
graphics card error, then you may need to check if the device files are available
on the system. To check for available device files, run the following command:
# cat /dev/gvid_info
This command lists the graphics device files available on the system. If these files
exist, then verify that these are character special files and not ordinary files. If this
check fails then
• Delete all the device files with the following command,
30 Troubleshooting Techniques for Xserver