radeonhd and dualhead with HD 3470

[aronadaal]

Hello,

I'm trying to use my ATI HD 3470 (with two DVI-Out ports) in dualhead mode but I'm not able to. I'm using the radeonhd drivers, build from the repository.

First some config files and xrandr output:

Screen 0: minimum 320 x 200, current 1280 x 1024, maximum 2560 x 1024
TV_7PIN_DIN disconnected
DVI-I_1/digital disconnected 1280x1024+0+0 376mm x 301mm
DVI-I_1/analog connected 1280x1024+0+0 376mm x 301mm
1280x1024 60.0*+ 75.0 59.9
1152x864 75.0 74.9
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
DVI-I_2/digital connected
1280x1024 75.0 59.9
1280x960 59.9
1152x864 75.0 74.9
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
DVI-I_2/analog disconnected


# If you have edited this file but would like it to be automatically updated
# again, run the following command:
# sudo dpkg-reconfigure -phigh xserver-xorg

Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "de"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection

Section "Monitor"
Identifier "Samsung"
EndSection

Section "Monitor"
Identifier "Belinea"
Option "RightOf" "Samsung"
EndSection

#Section "Device"
# Identifier "MyCard"
# Driver "radeonhd"
# Option "RROutputOrder" "Samsung"
#EndSection

Section "Device"
Identifier "Standardgrafikkarte"
Driver "radeonhd"
Busid "PCI:1:0:0"
Option "monitor-DVI_1/analog" "Belinea"
Option "monitor-DVI_2/digital" "Samsung"
Option "RDROutputOrder" "Belinea"

EndSection

Section "Extensions"
Option "Composite" "Disable"
EndSection
Section "ServerFlags"
Option "AIGLX" "off"
EndSection

Section "Screen"
Identifier "MyScreen"
Device "MyCard"
DefaultDepth 24
SubSection "Display"
Depth 24
## This is superfluous and actually harmful with a
## static configuration. Enable for dynamic config only.
Virtual 2560 1024
EndSubSection
EndSection


I want to use a analog TFT (1280x1024, Belinea) connected to DVI 1 (via an adapter) and a digital Widescreen TFT (1680x1050, Samsung) connected to DVI 2. I set up the xorg.conf like above but I only get a picture on the Monitor connected via the analog adapter.

I tried xrandr with the following parameters
xrandr --verbose --output DVI-I_2/digital --left-of DVI-I_1/analog
but I'dont get feedback on the TFT as well as from the xrandr tool.

Can anyone please help me?
Bye,
AronaDaal

[aronadaal]

well... there are some bugs in my xorg.conf
I fixed them, but it is still not possible to get a picture on the digital TFT!

fixed xorg.conf
Section "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "pc105"
Option "XkbLayout" "de"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection

Section "Monitor"
Identifier "Samsung"
EndSection

Section "Monitor"
Identifier "Belinea"
Option "LeftOf" "Samsung"
EndSection

Section "Device"
Identifier "Standardgrafikkarte"
#Driver "fglrx"
Driver "radeonhd"
Option "monitor-DVI-I_1/analog" "Belinea"
Option "monitor-DVI-I_2/digital" "Samsung"
Option "RDROutputOrder" "monitor-DVI-I_1/analog"
#Option "VideoOverlay" "on"
#Option "OpenGLOverlay" "off"
BusID "PCI:1:0:0"
EndSection

Section "Screen"
Identifier "MyScreen"
Device "Standardgrafikkarte"
DefaultDepth 24
SubSection "Display"
Depth 24
Modes "1680x1050" "1280 x 1024"
Virtual 2960 1050
EndSubSection
EndSection


Screen 0: minimum 320 x 200, current 2960 x 1050, maximum 2960 x 1050
TV_7PIN_DIN disconnected
DVI-I_1/digital disconnected
DVI-I_1/analog connected 1280x1024+0+0 376mm x 301mm
1280x1024 60.0*+ 75.0 59.9
1152x864 75.0 74.9
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
DVI-I_2/digital connected 1680x1050+1280+0 474mm x 296mm
1680x1050 59.9*+
1280x1024 75.0 59.9
1280x960 59.9
1152x864 75.0 74.9
1024x768 75.1 70.1 60.0
832x624 74.6
800x600 72.2 75.0 60.3 56.2
640x480 75.0 72.8 66.7 60.0
720x400 70.1
DVI-I_2/analog disconnected


EDIT:
sudo xrandr --verbose --output DVI-I_1/analog --right-of DVI-I_2/digital --size 1680x1050

crtc 0: 1280x1024 60.0 +1280+0 "DVI-I_1/analog"
crtc 1: 1280x1024 75.0 +0+0 "DVI-I_2/digital"