IBM Type 1881, Type 8677 manual Device Suggested action Monitor problems, Mouse problems

Table 2. Troubleshooting charts (continued)

Device	Suggested action
Monitor problems
The monitor works when you	See the IBM 4-Port Gb Ethernet Switch Module for BladeCenter Installation Guide for
start the BladeCenter unit, but	instructions on how to ping through the Telnet interface.
goes blank when you start
some application programs in
the blade servers.
The monitor displays video	The monitor attached to the BladeCenter management module normally shows the
for blade server 14 during	video output from the blade server that is the current owner of the keyboard, video,
management module restart.	and mouse (KVM). When there is no actively selected video from any blade server,
	the video from blade server 14 is routed to the management module. While the
	management module is restarting, there is temporarily no current KVM owner. The
	video from blade server 14 displays on the monitor briefly until the management
	module uses its NVRAM values to reestablish ownership of the KVM and media tray
	(optical drive, diskette drive, and USB port). After that, the video from the blade
	server that is the current KVM owner displays on the monitor.
The screen is blank.	Verify that:
	1. The system power cord is plugged into the BladeCenter power module and a
	working 220-volt PDU or electrical outlet.
	2. The monitor cables are connected properly.
	3. The monitor is turned on and the brightness and contrast controls are adjusted
	correctly.
	4. If you have verified these items and the screen remains blank, replace:
	a.	Monitor
	b.	Management module
Only the cursor appears.	See “Undetermined problems” on page 77.
The screen is wavy,	If the monitor self-tests show the monitor is working properly, consider the location of
unreadable, rolling, distorted,	the monitor. Magnetic fields around other devices (such as transformers, appliances,
or has screen jitter.	fluorescent lights, and other monitors) can cause screen jitter or wavy, unreadable,
	rolling, or distorted screen images. If this happens, turn off the monitor. (Moving a
	color monitor while it is turned on might cause screen discoloration.) Then move the
	device and the monitor at least 305 mm (12 in.) apart. Turn on the monitor.

	Notes:
	1. To prevent diskette drive read/write errors, be sure the distance between monitors
	and diskette drives is at least 76 mm (3 in.).
	2. Non-IBM monitor cables might cause unpredictable problems.
	3. An enhanced monitor cable with additional shielding is available for the 9521 and
	9527 monitors. For information about the enhanced monitor cable, contact your
	IBM reseller or IBM marketing representative.
	If the problem remains, replace the monitor.
Wrong characters appear on	If the wrong language is displayed, update the firmware in the management module
the screen.	with the correct language. If the problem remains, replace the management module.
Mouse problems
Mouse function lost during	If, while installing Red Hat Linux 7.3 to a blade server, you or someone else selects a
Red Hat installation.	different blade server as owner of the keyboard, video, and monitor (KVM), you might
	lose mouse function for the installation process.
	Do not switch KVM owners until the installation process begins to install the
	packages (after the ’About to Install’ window).

68BladeCenter E Type 8677 and 1881: Hardware Maintenance Manual and Troubleshooting Guide