Public bug reported:

Using nomachines nx, I'm having rootless session on a ubuntu 11.04

I can't change focus to nx windows using alt-tab.

>From digging into mutter code I see that nx windows gives bad timestamp
when having  _NET_WM_USER_TIME changed.

For example, local windows having timestamp of 58806978, while nx windows are 
having a timestamp of 1725594813.
It seems that nx windows timestamp is based on a different time than the local 
windows.

I'm not an X expert.

If I'm understanding right, there is a timer in the local X server, which gives 
timestamps. But nx windows get their timestamp from their xserver which is the 
nxagent. and this property is somehow forwarded to the local X.
Please fix me if I'm mistaken.

So if the timestamps of nx windows are origined from a differnet timer,
how could it be compared to local timestamps?

My environment details:
Description:    Ubuntu 11.04
Release:        11.04

libmutter0:
  Installed: 3.0.2.1-2ubuntu2~natty1
  Candidate: 3.0.2.1-2ubuntu2~natty1
  Version table:
     3.0.2.1-2ubuntu2~natty1 0
        500 http://ppa.launchpad.net/gnome3-team/gnome3/ubuntu/ natty/main 
amd64 Packages
 *** 3.0.2.1-2ubuntu2~natty1 0
        100 /var/lib/dpkg/status

nxclient:
  Installed: (none)
  Candidate: (none)
  Version table:
     3.5.0-7 0
        100 /var/lib/dpkg/status

** Affects: mutter (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/849762

Title:
  nomachines nx windows can't get focus

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