Troubleshooting Your System 295
Troubleshooting the iKVM Module
Problem:
When using iDRAC video\console redirection you cannot see video through
the iKVM when you switch to a blade running Linux.
Likely Cause and Solution:
A monitor or KVM appliance with a lower resolution has recently been added.
Example:
A blade running X Windows under Linux is inserted and powered on. A user
connects to the blade in OS GUI mode via the iDRAC and a video resolution
is detected and hard-set for that session. A monitor or KVM appliance is
attached to the front or rear iKVM interface on the M1000e enclosure. The
monitor or the KVM appliance is configured with a resolution LOWER than
the currently configured resolution in the X-Window session on the Linux
blade.
When you select the Linux blade using the front or rear port on the iKVM,
the iDRAC circuit adopts the lower resolution of the external connected
devices. The video on the lower resolution monitor or the KVM appliance is
not displayed until X Windows is restarted (iDRAC video should still be
viewable.)
Solution:
1
From the iDRAC session, exit and re-enter GUI mode. The lower
resolution is communicated and utilized.
2
Set all monitors or KVM appliances connected to the M1000e enclosure to
the same resolution or higher as configured on the Linux blades in GUI
mode.
3
From the lower resolution monitor (no video displayed) press <CTRL>
<ALT><F3> to change to the non-GUI login screen.
4
Restart X Windows to detect and utilize the lower resolution.
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