networkmanager hostname woes

[Thomas Danckaert]

Hi Guix,

since the change to networkmanager, I've been running into the 
following problem: when I connect to a wireless network using 
networkmanager, I can no longer start graphical applications 
(starting any program fails with “cannot open display :0.0” and 
similar messages).

AFAIU, the cause is that networkmanager changes my hostname (after 
DHCP?), in my case to “new-host2” or something similar, and this 
seems to break the X session.  When I manually restore the hostname 
with “sudo hostname <original-hostname>”, the problem is solved.  Is 
there anyway to disable this behaviour for networkmanager?

Thomas