3D on dual-head ATi Radeon 9200 SE on Ubuntu Breezy

Thanks to an e-mail from Mark Blakeney I now have 3D working on both heads of my dual-head setup. The last time I blogged about this I had a perfectly working dual-head set up, but no 3D. The lack of 3D isn’t a big deal, as I’m not a gamer, but I’ll 3D support if I decide to use Xgl or other 3D technologies in the future.

Mark pointed me at the MergedFB options of the open source ati driver and this page on the Gentoo wiki. By running using MergedFB and not Xinerama, I get Xinerama like behaviour and 3D.

# /etc/X11/xorg.conf (xorg X Window System server configuration file)
# This file was generated by dexconf, the Debian X Configuration tool, using
# values from the debconf database.
# Edit this file with caution, and see the /etc/X11/xorg.conf manual page.
# (Type “man /etc/X11/xorg.conf” at the shell prompt.)
# This file is automatically updated on xserver-xorg package upgrades *only*
# if it has not been modified since the last upgrade of the xserver-xorg
# package.
# 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 “Files”
FontPath “/usr/share/X11/fonts/misc”
FontPath “/usr/share/X11/fonts/cyrillic”
FontPath “/usr/share/X11/fonts/100dpi/:unscaled”
FontPath “/usr/share/X11/fonts/75dpi/:unscaled”
FontPath “/usr/share/X11/fonts/Type1”
FontPath “/usr/share/X11/fonts/CID”
FontPath “/usr/share/X11/fonts/100dpi”
FontPath “/usr/share/X11/fonts/75dpi”
# paths to defoma fonts
FontPath “/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType”
FontPath “/var/lib/defoma/x-ttcidfont-conf.d/dirs/CID”

Section “Module”
Load “GLcore”
Load “i2c”
Load “bitmap”
Load “ddc”
Load “dri”
Load “extmod”
Load “freetype”
Load “glx”
Load “int10”
Load “type1”
Load “vbe”
Load “v4l”

Section “InputDevice”
Identifier “Generic Keyboard”
Driver “kbd”
Option “CoreKeyboard”
Option “XkbRules” “xorg”
Option “XkbModel” “pc105”
Option “XkbLayout” “gb”

Section “InputDevice”
Identifier “Configured Mouse”
Driver “mouse”
Option “CorePointer”
Option “Device” “/dev/input/mice”
Option “Protocol” “ImPS/2”
Option “Emulate3Buttons” “true”
Option “ZAxisMapping” “4 5”

Section “Device”
Identifier “MergedFB Device”
BoardName “ATI Technologies, Inc. Radeon 9200 SE (RV280)”
Driver “radeon”
BusID “PCI:1:0:0”
Option “DynamicClocks” “on”
Option “MergedFB” “true”
Option “CRT2Position” “LeftOf”
Screen 0

Section “Monitor”
Identifier “SyncMasterR”
Option “DPMS”

Section “Screen”
Identifier “MergedFB Screen”
Device “MergedFB Device”
Monitor “SyncMasterR”
DefaultDepth 24
SubSection “Display”
Depth 24
Modes “1280×1024” “1152×864” “1024×768” “832×624” “800×600” “720×400” “640×480”

Section “ServerLayout”
Identifier “Default Layout”
Screen “MergedFB Screen”
InputDevice “Generic Keyboard”
InputDevice “Configured Mouse”

Section “DRI”
Mode 0666

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    2 Responses to 3D on dual-head ATi Radeon 9200 SE on Ubuntu Breezy

    1. thecrane says:

      If this works, you will be my favourite person on the internets! 🙂

    2. Roman says:

      Yes,MergedFB works BUT !! if U have LCD which is for example 1024×768 and eternal monitor (used on notebooks), U will have to switch the resolution on ext. monitor to same as on the notebook’s desktop to prevent scrolling on the notebook’s desktop on virtual rosolution.. Which is really f***g annoying..

      Example: I want 1280×1024 on ext, I’ll have to swtich on nb to 1280×1024 virtual (1024×768 physical – so add extra 256+256 bits)…

      Does anyone have solution on this? Emerged and 2 different resolution and frequencies?

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