Talk:Engage 10

I have tried to copy everything in my brain about these devices to this page. A lot of it is written in first person, but I expect that to change as other people learn things or confirm my suspicions.

here is my latest xorg.conf that supports 2 displaylink displays...

Section "Device" 
  Identifier "displaylink device1" 
  driver "fbdev" 
  Option "fbdev" "/dev/fb1" 
  Option "ShadowFB" "off"
  Option "Monitor-VGA" "displaylink monitor1" 
EndSection 

Section "Device" 
  Identifier "displaylink device2" 
  driver "fbdev" 
  Option "fbdev" "/dev/fb2" 
  Option "ShadowFB" "off"
  Option "Monitor-VGA" "displaylink monitor2" 
EndSection 

Section "Modes"  
  Identifier "dlmodes" 
  Modeline "1024x600_60.00"   49.00  1024 1149 1245 1312  600 601 611 624 -hsync +vsync
  Modeline "1024x600R"   43.75  1024 1072 1104 1184  600 603 613 619 +hsync -vsync
EndSection

Section "Monitor" 
  Identifier "displaylink monitor1" 
  DisplaySize 221 129
  UseModes "dlmodes"
  Option "DPMS" "off"
EndSection 

Section "Monitor" 
  Identifier "displaylink monitor2" 
  DisplaySize 221 129
  UseModes "dlmodes"
  Option "DPMS" "off"
EndSection

Section "Screen"
  Identifier "displaylink screen1"
  Device "displaylink device1"
  Monitor "displaylink monitor1" 
  DefaultDepth    16
  SubSection "Display"
    Depth    16
    Modes     "1024x600_60.00"
  EndSubSection
EndSection

Section "Screen"
  Identifier "displaylink screen2"
  Device "displaylink device2"
  Monitor "displaylink monitor2"
  DefaultDepth    16
  SubSection "Display"
    Depth    16
    Modes     "1024x600_60.00"
  EndSubSection
EndSection

Section "ServerLayout" 
  Identifier "Default Layout"
  Screen 0 "displaylink screen1" 0 0 
  Screen 1 "displaylink screen2" RightOf "displaylink screen1"
  Option   "Xinerama" "1"
EndSection

...and this will wrangle the touch panels onto just one monitor each...

Section "InputClass"
	Identifier	"Touch1"
	MatchDevicePath		"/dev/input/event3"
	Option	"GrabDevice"	"1"
	Option	"Calibration"	"25 4032 184 3982"
	Option	"SwapAxes"	"1"
	Option	"InvertX"	"0"
	Option  "InvertY"	"1"
	Option  "TransformationMatrix" "0.5 0 0 0 1 0 0 0 1"
EndSection


Section "InputClass"
        Identifier      "Touch2"
        MatchDevicePath		"/dev/input/event5"
        Option  "GrabDevice"    "1"
        Option  "Calibration"   "25 4032 184 3982"
        Option  "SwapAxes"      "1"
        Option  "InvertX"       "0"
        Option  "InvertY"       "1"
	Option  "TransformationMatrix" "0.5 0 0.5 0 1 0 0 0 1"
EndSection

This diagram helps explain the transformation matrix. I think there are better options to tie a touch device to a monitor, (maybe "screenno"?) but I got this to work first...

-mouse