One of my monitors does not enter any power saving mode.

Can anybody tell me where to look to figure out what's going on?

I have a Fedora 17 workstation with two acer x223w monitors connected to
a nvidia GeForce 9800 GTX+ using the nouveau driver.

I used to have Fedora 14 installed with nvidia drivers and both monitors
would enter a power saving mode.

I installed Fedora 17 with the minimal setting and then added KDE and
told systemd to use the graphical login.

Among the things I see with :

$ sudo cat /var/log/Xorg.0.log | grep -B 7 DPMS

are :

[ 26125.818] (II) NOUVEAU(0): EDID for output DVI-I-1
[ 26125.818] (II) NOUVEAU(0): Manufacturer: ACR  Model: 50  Serial#:
2449480058
[ 26125.818] (II) NOUVEAU(0): Year: 2009  Week: 20
[ 26125.818] (II) NOUVEAU(0): EDID Version: 1.3
[ 26125.818] (II) NOUVEAU(0): Digital Display Input
[ 26125.818] (II) NOUVEAU(0): Max Image Size [cm]: horiz.: 47  vert.: 30
[ 26125.818] (II) NOUVEAU(0): Gamma: 2.20
[ 26125.818] (II) NOUVEAU(0): DPMS capabilities: StandBy Suspend
--
[ 26125.849] (II) NOUVEAU(0): EDID for output DVI-I-2
[ 26125.849] (II) NOUVEAU(0): Manufacturer: ACR  Model: d  Serial#:
2442237862
[ 26125.849] (II) NOUVEAU(0): Year: 2009  Week: 19
[ 26125.849] (II) NOUVEAU(0): EDID Version: 1.3
[ 26125.849] (II) NOUVEAU(0): Digital Display Input
[ 26125.849] (II) NOUVEAU(0): Max Image Size [cm]: horiz.: 47  vert.: 30
[ 26125.849] (II) NOUVEAU(0): Gamma: 2.20
[ 26125.849] (II) NOUVEAU(0): DPMS capabilities: StandBy Suspend Off



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