Use the following command to troubleshoot this problem:
/usr/bin/X11/X :0
This command will either bring up a gray screen with an 'X' shaped cursor,
or it will abort with a fatal error message.
The following error messages are fairly easily addressed:
- 'Unable to open X pointer device. Is one attached?'
This error indicates that the X server cannot communicate with the
mouse on this system. This can be caused by one of the following
problems:
A) Is the mouse securely attached to the system? Attempt to re-seat
the mouse, and attempt the above command again.
B) Is the system detecting the built-in USB interface? The new
B1000/C3000/J5000 and similar Visualize workstations use USB
(Universal Serial Bus) keyboards and mice. You can use this
command to verify that the system detects the USB interface:
# ioscan -fnC usb
If this is not being detected, then you need to verify that your
system has the June 1999 (or later) Additional Core Enhancements
installed, or you have a hardware defect.
C) Are the correct device drivers installed? The B1000/
C3000/J5000 and similar Visualize workstations now use USB
(Universal Serial Bus) keyboards and mice, and new device drivers
need to be installed in the kernel. The following command checks
for the correct device files:
# lsdev | grep usb
Character Block Driver Class
76 -1 hcd usb
77 -1 usbd usbdev
78 -1 hub usbhub
79 -1 hid usbhid
If these are not installed, then you will need to rebuild your
kernel with the above device drivers.
D) Are the correct device files installed? At the minimum, the
following files need to be installed:
crw-rw-rw- 1 bin bin 78 0x000000 Jul 28 08:29 /dev/hub
crw-rw-rw- 1 bin bin 79 0x000003 Jul 28 08:29 /dev/hid/firstkbd
crw-rw-rw- 1 bin bin 79 0x000001 Jul 28 08:29 /dev/hid/firstmouse
crw-rw-rw- 1 bin bin 79 0xffffff Jul 28 08:29 /dev/hidhid_ctl
The /dev/hid directory should have at least 34 device files
installed. Run the following commands if these are not installed:
# insf -evd hcd
# insf -evd usbd
# insf -evd hub
# insf -evd hid
E) If the above steps do not resolve the problem, you may have a
hardware problem.
F) Check if you have a switchbox attached. If this is the case,
then remove this switchbox. HP had not tested any switchbox on
the market and the way HP has implemented the USB interface is
that they need to have uninterrupted connection for the USB
devices.
Did you take a backup?
