SPARCbook Portable Workstation User Guide
16-7
Problem Solving and Support
Problem Solving Checklists
Other hardware problems
Possible Cause
What to Check or Action to Take
ò
Display Problems
External display blank.
External display interface not enabled. Use NCE Display Panel to
enable the external display.
See “Connecting an External Display” on page 11-8.
Small image displayed in center
of screen with large blank
borders.
You are using a virtual frame buffer on a display with a higher
resolution. This is not a fault condition.
Zoom in on the image by pressing
Pause-PageDown
. See “Pan and
Garbled display.
Wrong display timing parameters set. Use NCE Display Panel to
correctly configure the display interface. See “Configuring the
Display Interface Using NCE” on page 11-9.
ò
I/O Problems
External keyboard or mouse
does not work.
Check that the external mouse or keyboard are compatible types and
are connected to the combined Keyboard and Mouse port using the
correct Sun-compatible cable.
Check if the keyboard and SPARCbook are communicating by using
the command
kbconfig -r
. The keyboard LEDs should light.
In the case of an optical mouse you can see if it is powered by
checking to see if the red LED on the underside of the mouse is
illuminated.
S3UG4_Book Page 7 Friday, August 8, 1997 11:37 am
