40b6 Dual head issues, non-xinerama setup possible? [Archive] - The FreeBSD Forums
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ben___
February 22nd, 2010, 18:20
Hey everyone, I'm having issues getting my dual head radeon card to work properly. Normally, I'm able to start X and run

xrandr --output VGA-0 --mode 1680x1050 --primary --right-of DVI-0

At first, it gave me an error regarding virtual screen size, so I modified my xorg.conf to include "Virtual 3120 1050":


Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
ModulePath "/usr/local/lib/xorg/modules"
FontPath "/usr/local/lib/X11/fonts/misc/"
FontPath "/usr/local/lib/X11/fonts/TTF/"
FontPath "/usr/local/lib/X11/fonts/OTF"
FontPath "/usr/local/lib/X11/fonts/Type1/"
FontPath "/usr/local/lib/X11/fonts/100dpi/"
FontPath "/usr/local/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
Load "dbe"
Load "dri"
Load "dri2"
Load "extmod"
Load "glx"
Load "record"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/sysmouse"
Option "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
#DisplaySize 430 270 # mm
Identifier "Monitor0"
VendorName "BNQ"
ModelName "BenQ G2000W"
HorizSync 31.0 - 83.0
VertRefresh 55.0 - 76.0
Option "DPMS"
EndSection

Section "Device"
### Available Driver options are:-
### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
### [arg]: arg optional
#Option "NoAccel" # [<bool>]
#Option "SWcursor" # [<bool>]
#Option "Dac6Bit" # [<bool>]
#Option "Dac8Bit" # [<bool>]
#Option "BusType" # [<str>]
#Option "CPPIOMode" # [<bool>]
#Option "CPusecTimeout" # <i>
#Option "AGPMode" # <i>
#Option "AGPFastWrite" # [<bool>]
#Option "AGPSize" # <i>
#Option "GARTSize" # <i>
#Option "RingSize" # <i>
#Option "BufferSize" # <i>
#Option "EnableDepthMoves" # [<bool>]
#Option "EnablePageFlip" # [<bool>]
#Option "NoBackBuffer" # [<bool>]
#Option "DMAForXv" # [<bool>]
#Option "FBTexPercent" # <i>
#Option "DepthBits" # <i>
#Option "PCIAPERSize" # <i>
#Option "AccelDFS" # [<bool>]
#Option "IgnoreEDID" # [<bool>]
#Option "DisplayPriority" # [<str>]
#Option "PanelSize" # [<str>]
#Option "ForceMinDotClock" # <freq>
#Option "ColorTiling" # [<bool>]
#Option "VideoKey" # <i>
#Option "RageTheatreCrystal" # <i>
#Option "RageTheatreTunerPort" # <i>
#Option "RageTheatreCompositePort" # <i>
#Option "RageTheatreSVideoPort" # <i>
#Option "TunerType" # <i>
#Option "RageTheatreMicrocPath" # <str>
#Option "RageTheatreMicrocType" # <str>
#Option "ScalerWidth" # <i>
#Option "RenderAccel" # [<bool>]
#Option "SubPixelOrder" # [<str>]
#Option "ShowCache" # [<bool>]
#Option "DynamicClocks" # [<bool>]
#Option "VGAAccess" # [<bool>]
#Option "ReverseDDC" # [<bool>]
#Option "LVDSProbePLL" # [<bool>]
#Option "AccelMethod" # <str>
#Option "DRI" # [<bool>]
#Option "ConnectorTable" # <str>
#Option "DefaultConnectorTable" # [<bool>]
#Option "DefaultTMDSPLL" # [<bool>]
#Option "TVDACLoadDetect" # [<bool>]
#Option "ForceTVOut" # [<bool>]
#Option "TVStandard" # <str>
#Option "IgnoreLidStatus" # [<bool>]
#Option "DefaultTVDACAdj" # [<bool>]
#Option "Int10" # [<bool>]
#Option "EXAVSync" # [<bool>]
#Option "ATOMTVOut" # [<bool>]
#Option "R4xxATOM" # [<bool>]
Identifier "Card0"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "RV710 [Radeon HD 4350]"
BusID "PCI:2:0:0"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
SubSection "Display"
Viewport 0 0
Depth 1
EndSubSection
SubSection "Display"
Viewport 0 0
Depth 24
Virtual 3120 1050
EndSubSection
EndSection


Now, both monitors work however they're being seen as 1 large virtual desktop, is it possible to force independent displays?

Thanks!

Ben
adamk
February 22nd, 2010, 18:50
It is possible to use separate screens, but you will need to setup separate monitor, screen and device sections in the xorg.conf file. And, obviously you can't use xrandr.

Another side effect, though, is that direct rendering will be disabled, leaving you without any 2D or 3D acceleration.

Adam
ben___
February 22nd, 2010, 19:04
Thanks Adam!

Here's my updated xorg.conf, although I must be missing something as my screens are mirrored, any thoughts?


Section "ServerLayout"
Identifier "X.org Configured"
Screen 0 "Screen0" 0 0
Screen 1 "Screen1" Leftof "Screen0"
InputDevice "Mouse0" "CorePointer"
InputDevice "Keyboard0" "CoreKeyboard"
EndSection

Section "Files"
ModulePath "/usr/local/lib/xorg/modules"
FontPath "/usr/local/lib/X11/fonts/misc/"
FontPath "/usr/local/lib/X11/fonts/TTF/"
FontPath "/usr/local/lib/X11/fonts/OTF"
FontPath "/usr/local/lib/X11/fonts/Type1/"
FontPath "/usr/local/lib/X11/fonts/100dpi/"
FontPath "/usr/local/lib/X11/fonts/75dpi/"
EndSection

Section "Module"
Load "dbe"
Load "dri"
Load "dri2"
Load "extmod"
Load "glx"
Load "record"
EndSection

Section "InputDevice"
Identifier "Keyboard0"
Driver "kbd"
EndSection

Section "InputDevice"
Identifier "Mouse0"
Driver "mouse"
Option "Protocol" "auto"
Option "Device" "/dev/sysmouse"
Option "ZAxisMapping" "4 5 6 7"
EndSection

Section "Monitor"
#DisplaySize 430 270 # mm
Identifier "Monitor0"
VendorName "BNQ"
ModelName "BenQ G2000W"
Option "DPMS"
EndSection

Section "Monitor"
#DisplaySize 430 270 # mm
Identifier "Monitor1"
VendorName "BNQ"
ModelName "BenQ G2000W"
Option "DPMS"
EndSection

Section "Device"
Option "NoAccel" # [<bool>]
Identifier "Card0"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "RV710 [Radeon HD 4350]"
BusID "PCI:2:0:0"
EndSection

Section "Device"
Option "NoAccel" # [<bool>]
Identifier "Card1"
Driver "radeon"
VendorName "ATI Technologies Inc"
BoardName "RV710 [Radeon HD 4350]"
BusID "PCI:2:0:1"
EndSection

Section "Screen"
Identifier "Screen0"
Device "Card0"
Monitor "Monitor0"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection

Section "Screen"
Identifier "Screen1"
Device "Card1"
Monitor "Monitor1"
DefaultDepth 24
SubSection "Display"
Viewport 0 0
Depth 24
EndSubSection
EndSection
adamk
February 22nd, 2010, 19:46
Yeah, I just tried with your xorg.conf file on an HD4350 here. It's not even trying to load a separate instance of the radeon driver for the other screen, and I'm not sure why. It certainly previously worked for me with an older ATI card (minus direct rendering, as I noted), but I'm not sure if this not working is due to a change in the X server, driver, or hardware itself. I'm trying to find out on #radeon now on freenode, but haven't gotten a response back.

Adam
adamk
February 22nd, 2010, 19:58
Alright, I'm hearing on #radeon that it only works for certain versions of the driver and X server, but can't get any more details than that. I'm guessing that it's broken in X server 1.6.*.

Adam
ben___
February 22nd, 2010, 20:03
Bummer, thanks for your help Adam!
adamk
February 22nd, 2010, 21:10
No problem. I have to say that without any 2D acceleration, you'd probably find the performance quite miserable, anyway :-)

Adam
joag
December 2nd, 2010, 23:14
This post is a bit old but in any case this is how I've managed to get things in a working state:

http://www.nixheiser.org/DualMonitor
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