monitor power down when x starts using kvm switch
bridge.on.blue at gmail.com
Thu Jul 12 06:50:53 PDT 2007
i'm having a problem with a kvm switch, model Aten MasterView cs-82a.
I start the machine connected to the screen via kvm, it seems to work
and i can see the boot.
However as soon as X starts the monitor makes a couple of flashes and
goes to sleep.
This is really odd since if i press ctrl+alt+f1 it turns back on and i
can use the shell, however if i ctrl+alt+f7 it shuts down again!
Someone on the irc channel kindly suggested that this has to deal with
the EDID signal and my nvidia driver autosetup.
i added the following lines to my xorg.conf
Option "NoDCC" "True"
Option "UseEDID" "False"
HorizSync 30.0 - 81.0
VertRefresh 56.0 - 75.0
#Option "MetaModes" "nvidia-auto-select, nvidia-auto-select"
the complete xorg.conf is avaliable at:
This configuration works without the switch but when it is connected
nothing changes, same behavior as before.
here you can find a log of a cold boot with the kvm attached
From the log it seems to work fine, in fact if i take out the kvm with
the pc on, and i connect the monitor directly it wakes up and works.
what else can i try?
More information about the xorg