DPMS does not work: the monitor is not switched off

Posted by bortzmeyer on Server Fault See other posts from Server Fault or by bortzmeyer
Published on 2009-09-02T08:43:54Z Indexed on 2011/01/14 0:55 UTC
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debian

|

x11

I have a monitor which was properly switched off by my Debian PC when unused. I attached it to another machine and, this times, it is never switched off.

In /etc/X11/xorg.conf, I have:

Section "Monitor"
        Identifier      "Generic Monitor"
        Option          "DPMS"

It is recognized when X11 starts:

(II) Loading extension DPMS
...
(II) VESA(0): DPMS capabilities: StandBy Suspend Off; RGB/Color Display
...
(**) Option "dpms"
(**) VESA(0): DPMS enabled

The operating system is Debian stable "lenny". The graphics card is:

00:02.0 VGA compatible controller: Intel Corporation 82G33/G31 Express Integrate
d Graphics Controller (rev 02) (prog-if 00 [VGA controller])
        Subsystem: Hewlett-Packard Company Device 2a6f
        Flags: bus master, fast devsel, latency 0, IRQ 5
        Memory at fe900000 (32-bit, non-prefetchable) [size=512K]
        I/O ports at b080 [size=8]
        Memory at d0000000 (32-bit, prefetchable) [size=256M]
        Memory at fe800000 (32-bit, non-prefetchable) [size=1M]
        Capabilities: [90] Message Signalled Interrupts: Mask- 64bit- Queue=0/0  Enable-Capabilities: [d0] Power Management version 2

X11 is:

X.Org X Server 1.4.2
Release Date: 11 June 2008
X Protocol Version 11, Revision 0
Build Operating System: Linux Debian (xorg-server 2:1.4.2-10.lenny2)
Current Operating System: Linux ludwigVII 2.6.26-2-686 #1 SMP Sun Jun 21 04:57:3
8 UTC 2009 i686
Build Date: 08 June 2009  09:12:57AM

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