CHAPTER 6: Troubleshooting
77
6.2.9 Mouse Doesn’t Move Pointer/Cursor
A.
What type of mouse is it? If it is any type other than those listed as being
supported in item A under
Section 6.2.6
, chances are that the ServSwitch
doesn’t
support
it.
B.
The mouse might not be configured properly.
C.
Your mouse must be connected to a powered ServSwitch when the CPUs are
booted and when mouse applications are run. Try exiting and re-entering your
application; if this doesn’t work, issue the Reset command (see
Section 4.3.6
).
6.2.10 Display is Fuzzy
A.
Check the settings of your monitor, especially the sharpness control.
B.
If you can’t solve the problem by changing the monitor settings, you might
have run cable too far. No single original Serv cable in your system should be
longer than 20 ft. (6.1 m), and the maximum total length of original Serv cable
from any CPU to any monitor, keyboard, and mouse is 40 ft. (12.2 m). (If you’re
using SVGA or high-res Mac video, even these distances might too far.) No
single coaxial cable in your system should be longer than 100 ft. (30.5 m), and
this assumes that your CPUs can drive keyboard and mouse signals that far—you
might only be able to run 20 ft. (6.1 m). Bottom line: If you’re running IBM or
Mac video over original Serv cable, you might need to upgrade to coaxial cables
that carry the video signal better. If you are already using coax cables, you might
need to add Station Extenders (our product codes AC253A etc.) or CAT5 KVM
Extenders (our product codes ACU9001A etc.); call Black Box for technical
support.
See
Section 4.1.3
and
Appendix B
.
6.2.11 Video Not Synchronized or Wrong Color
A.
If you are trying to use an IBM 9515, 9517, or 9518 monitor, you need special
cables to carry the video correctly. Call Black Box for technical support.
B.
Check the settings of your monitor, especially the sync or color controls.
C.
Your monitor might not be capable of synching to the selected video
resolution or frequency (refresh rate). Try a lower resolution or frequency or
a more powerful monitor.
D.
The CPU is sending video with composite sync and the monitor only accepts
horizontal or vertical sync, or vice versa. Change the settings of the CPU or
monitor so that the two are compatible. If this is not possible, swap in a
different monitor that can handle all of your CPUs’ synchronization types.
