Dell Dimension 4600 w/Pentium 4 dual processors running Xubuntu 10.04
latest update through an Airlink 101 KVM switch hubbed to a second
Airlink 101 KVM switch.

As soon as the screen exits grub to boot the screen goes blank with a no
signal message and system locks. The only way it shuts down is to hold
the power button until it turns off. I can get a diagnostic report after
starting using 2.6.24-28 generic (recovery mode). At the end of the
report I have an unresponsive curser. The system boots fine using the
live cd or bypassing the KVM.

Following is the diagnostic as best as I could get off the screen. A few
characters might be missing due to being off screen.

libudev: udev_monitor_new_from_netlink: error getting socket: Invalid argument
[   80.496823] wait-for-root[864]: segfault at 00000030 eip b7722f2b esp bfda41
0 error 4
Segmentation fault
Gave up waiting for root device. Common problems:
 - Boot args (cat /proc/cmdline)
  - Check root delay= (did the system wait long enough?)
  - Check root= (did the system wait for the right device?)
 - Missing modules (cat /proc/modules; ls /dev)
ALERT! /dev/disk/by-uvid/6cbffd1d-0d30-4272-84f8-a77f4ff7f3c6 does not exist. D
opping to a shell!


BusyBox v1.13.3 (Ubuntu 1.13.3-1ubuntu11) built-in shell (ash)

Enter 'help' for a list of built-in commands.

(intramfs) _

As stated there is no response to input and screen will eventually go blank 
although there will be no loss of video signal like there is during a normal 
boot.
I do not know coding but I'm not totally inept. Best I can tell is that there 
seems to be an issue with the system on this box dealling with the KVM switch. 
I have several other machines of varying makes and models running the same 
system without any problems. This machine did fine with Xubuntu 8.04 and with 
10.04 at initial upgrade.

Thanks for any help.

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https://bugs.launchpad.net/bugs/672793

Title:
  system is wedged, new ssh connections are closed instantly and console
  is black with a mouse but does not accept keyboard input

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