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Dual Head Setup - ATI Radeon 9250

Archived thread 100119 from Multimedia & Video. Markdown source: Multimedia_&_Video/thread_100119_Dual_Head_Setup_-_ATI_Radeon_9250.md

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#1

I've been trying to get a dual head setup on my computer for some time now. I'm running an ATI Radeon 9250 with the fglrx drivers already installed. My friend and I have been trying to hack the xorg.conf file and we both swear we have it right. Here it is in its entirety.

[[Oh btw my monitors are both Dell 17" CRTs. One is plugged in VGA, the other to the DVI port via a VGA/DVI adapter]]

Section "dri" Mode 0666 EndSection Section "Module" Load "dbe" # Double buffer extension SubSection "extmod" Option "omit xfree86-dga" # don't initialise the DGA extension EndSubSection Load "type1" Load "freetype" Load "glx" # libglx.a Load "dri" # libdri.a EndSection Section "Files" RgbPath "/usr/X11R6/lib/X11/rgb" EndSection

Section "ServerFlags" EndSection Section "InputDevice" Identifier "Keyboard1" Driver "kbd" Option "AutoRepeat" "500 30" Option "XkbRules" "xfree86" Option "XkbModel" "pc101" Option "XkbLayout" "us" EndSection Section "InputDevice" Identifier "Mouse1" Driver "mouse" Option "Protocol" "ImPS/2" Option "ZAxisMapping" "4 5" Option "Device" "/dev/input/mice" EndSection

Section "Monitor" Identifier "Monitor0" Option "DPMS" HorizSync 30-90 VertRefresh 50-160

EndSection

Section "Monitor" Identifier "Monitor1" Option "DPMS" HorizSync 30-90 VertRefresh 50-160

EndSection

Section "Device" Identifier "Standard VGA" VendorName "Unknown" BoardName "Unknown" Driver "fglrx" EndSection

=== ATI device section ===

Section "Device" Identifier "ATI Graphics Adapter" Driver "fglrx" Option "no_accel" "no" Option "no_dri" "no" Option "mtrr" "off" # disable DRI mtrr mapper, driver has its own code for mtrr Option "DesktopSetup" "0x00000200" Option "MonitorLayout" "AUTO,AUTO" Option "ScreenOverlap" "0" Option "GammaCorrectionI" "0x00000000" Option "GammaCorrectionII" "0x00000000" Option "Capabilities" "0x00000000" Option "CapabilitiesEx" "0x00000000" Option "VideoOverlay" "on" Option "OpenGLOverlay" "off" Option "CenterMode" "off" Option "PseudoColorVisuals" "off" Option "Stereo" "off" Option "StereoSyncEnable" "1" Option "FSAAEnable" "no" Option "FSAAScale" "1" Option "FSAADisableGamma" "no" Option "FSAACustomizeMSPos" "no" Option "FSAAMSPosX0" "0.000000" Option "FSAAMSPosY0" "0.000000" Option "FSAAMSPosX1" "0.000000" Option "FSAAMSPosY1" "0.000000" Option "FSAAMSPosX2" "0.000000" Option "FSAAMSPosY2" "0.000000" Option "FSAAMSPosX3" "0.000000" Option "FSAAMSPosY3" "0.000000" Option "FSAAMSPosX4" "0.000000" Option "FSAAMSPosY4" "0.000000" Option "FSAAMSPosX5" "0.000000" Option "FSAAMSPosY5" "0.000000" Option "UseFastTLS" "0" Option "BlockSignalsOnLock" "on" Option "UseInternalAGPGART" "no" Option "ForceGenericCPU" "no" BusID "PCI:1:0:0" # vendor=1002, device=5960 Screen 0 EndSection

Section "Screen" Identifier "Screen0" Device "ATI Graphics Adapter" Monitor "Monitor0" DefaultDepth 24

Subsection "Display" Depth 24 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubsection EndSection

Section "Screen" Identifier "Screen1" Device "ATI Graphics Adapter" Monitor "Monitor1" DefaultDepth 24

Subsection "Display" Depth 24 Modes "1280x1024" "1024x768" "800x600" "640x480" EndSubsection EndSection

Section "ServerLayout"

Identifier "Server Layout"

Option "Clone" "off" Option "Xinerama" "on" Screen "Screen0" Screen "Screen1" LeftOf "Screen0"

InputDevice "Mouse1" "CorePointer" InputDevice "Keyboard1" "CoreKeyboard"

EndSection

EOF ###

ANY help would be appreciated. Thanks!

#2

It says here that you need to add another device section with same BusID and associate it to one of the screens.

#3

If you are using the latest drivers the fglrxconfig tool will allow you to configure a variety of dual-screen setups.

#4

I made a copy of my device section and identified it as "ATI Graphics Adapter_1". I put Screen 1 at the last line before the end of section and under screen1 I put the copied device identifier. I got two blank screens. The X server started up fine, I know, because the Ubuntu startup sound played. But I couldn't see anything.

#5

Actually tried that first but no matter what I did I only got one monitor working. Hence my posting my entire xorg.conf file, because nobody I ask can see what's wrong with it, I'm hoping someone here could.

#6

FGLRXconfig dosen't appear to do anything when I try to use Dual Screen, it tells me to restart GDM and I do that then it's still mirror screens...