Hi list users, I have a Linux box (AMD-64, Debian Stable, fglrx) set up for digital signage driving 2 full-HD monitors via DisplayPort (and a control screen on an old XGA LCD in the closet). The signage monitors are internally configured to shut themselves down overnight and restart themselves each weekday morning. This plays merry havoc with the content as X11 and/or the window manager (kWin) tries to shuffle things around to fit on remaining monitors. End result is the control monitor (which doesn't shut down) ends up with everything on it the next day.
I am having trouble working out how to disable the automatic monitor detection
so that X11 just carries on as if the monitors are still there while they are
shut down for the night/weekend. Basically I want to completely ignore all
monitor power events.
Hunting around the 'net has given me tantalising hints that DPMS or udev may be
involved but since everyone else in the world seems to want the exact opposite
of what I want* (ie, to have automatic P&P) I am having little joy finding a
solution :(
*...well... plenty of Windows7 users complaining about not being able to change
channels on a HDTV being used as a secondary monitor without scrambling their
desktops, while MS ignores them, but that is even less help. :)
FYI: my xorg.conf presently looks like:
Section "ServerLayout"
Identifier "amdcccle Layout"
Screen 0 "MainScreen" 0 0
EndSection
Section "Monitor"
Identifier "0-DFP1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" ""
Option "DPMS" "false"
Option "PreferredMode" "1920x1080"
Option "TargetRefresh" "60"
Option "Position" "1920 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Monitor"
Identifier "0-DFP2"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" ""
Option "DPMS" "false"
Option "PreferredMode" "1920x1080"
Option "TargetRefresh" "60"
Option "Position" "0 0"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Monitor"
Identifier "0-CRT1"
Option "VendorName" "ATI Proprietary Driver"
Option "ModelName" ""
Option "DPMS" "false"
Option "PreferredMode" "1024x768"
Option "TargetRefresh" "60"
Option "Position" "1376 1080"
Option "Rotate" "normal"
Option "Disable" "false"
EndSection
Section "Device"
Identifier "card-0"
Driver "fglrx"
Option "Monitor-DFP1" "0-DFP1"
Option "Monitor-DFP2" "0-DFP2"
Option "Monitor-CRT1" "0-CRT1"
BusID "PCI:1:0:0"
EndSection
Section "Screen"
Identifier "MainScreen"
Device "card-0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Virtual 3840 1920
Depth 24
EndSubSection
EndSection
Regards,
Glenn Alexander
Technical Officer
Digital Media Centre
Faculty of Creative Arts
232.G11b Mike Codd Building, Innovation Campus
University of Wollongong NSW 2522
T + 61 2 4221 5847
W
http://www.uow.edu.au/crearts/digitalmediacentre/<http://www.uow.edu.au/crearts/digitalmediacentre/index.html>
w www.glenalec.net/DMCTO/<http://www.glenalec.net/DMCTO/>
Tw twitter.com/DMC_TO<http://twitter.com/DMC_TO>
Work Days: M-F 9am-4pm
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