When using
iDRAC video\console redirection, and you cannot see video through
the iKVM when you switch to a blade running Linux, a typical cause
is that a monitor or KVM appliance with a lower resolution has recently
been added.
For example, a blade running X Windows under Linux
is inserted and powered on. A user connects to the blade in OS GUI
mode using 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.)
Steps
From the iDRAC session, exit and re-enter GUI mode. The
lower resolution is communicated and utilized.
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.
From the lower resolution monitor (no video displayed)
press <CTRL><ALT><F3> to change to the non-GUI login screen.
Restart X Windows to detect and utilize the lower resolution.
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