x11 MergedFB is now working in my X300 ATI RADEON

[Daniel Jesus Valencia Sanchez]

Hi all,

I was so frustrated that I got those hard locks in my box when trying to 
use two monitors in MergedFB, that I searched everywhere (including the 
archives of this list) and couldn't find anything to solve it.  A little 
of RTFM taught me of a few options that I could tweak, and *FINALLY* I 
made it work properly (well, cuasi-properly, for the performance is a 
little degraded).  So, for the information of anyone that could care 
(like the french guy), here it goes...

The option that saved my life is:
    Option      "NoAccel"                     "true"
in Section "Device"


My complete xorg.conf is:


Section "Module"
    Load        "dbe"      # Double buffer extension

    SubSection  "extmod"
      Option    "omit xfree86-dga"   # don't initialise the DGA extension
    EndSubSection

    Load        "type1"
#    Load        "speedo"
    Load        "freetype"
#    Load        "xtt"

    Load       "glx"
EndSection

Section "Files"
    RgbPath    "/usr/X11R6/lib/X11/rgb"

    FontPath   "/usr/X11R6/lib/X11/fonts/misc/"
    FontPath   "/usr/X11R6/lib/X11/fonts/TTF/"
    FontPath   "/usr/X11R6/lib/X11/fonts/Type1/"
#    FontPath   "/usr/X11R6/lib/X11/fonts/CID/"
    FontPath   "/usr/X11R6/lib/X11/fonts/75dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/100dpi/"
    FontPath   "/usr/X11R6/lib/X11/fonts/local/"
#    FontPath   "/usr/X11R6/lib/X11/fonts/Speedo/"
#    FontPath   "/usr/X11R6/lib/X11/fonts/TrueType/"
#    FontPath   "/usr/X11R6/lib/X11/fonts/freefont/"

    ModulePath "/usr/X11R6/lib/modules"
EndSection

Section "InputDevice"
    Identifier    "Keyboard1"
    Driver    "kbd"

    Option "AutoRepeat" "250 30"

    Option "XkbRules"    "xorg"
    Option "XkbModel"    "pc105"
    Option "XkbLayout"    "us"
EndSection

Section "InputDevice"
    Identifier    "Mouse1"
    Driver    "mouse"
    Option "Protocol"    "Auto"    # Auto detect
    Option "Device"      "/dev/sysmouse"

    Option "ZAxisMapping"   "4 5 6 7"
EndSection

Section "Monitor"
    Identifier  "Sceptre"
    HorizSync   15-80
    VertRefresh 50-90
EndSection

Section "Device"
    Identifier  "Diamond"
    Driver      "radeon"
    Option      "MergedFB"                    "true"
    Option      "CRT2Position"                "RightOf"
    Option      "NoAccel"                     "true"
    Option      "MetaModes"                   "1280x1024-1280x1024"
#    Option      "RenderAccel"                 "false"
    Option      "MergedXineramaCRT2IsScreen0" "true"
EndSection

Section "Screen"
    Identifier  "My Screen"
    Device      "Diamond"
    Monitor     "Sceptre"
    DefaultDepth 24

    Subsection "Display"
        Depth       24
        Modes       "1280x1024"
        ViewPort    0 0
        Virtual     2560 1024
    EndSubsectiOn
EndSection

Section "ServerLayout"
    Identifier  "Simple Layout"

    Screen "My Screen"
    InputDevice "Mouse1" "CorePointer"
    InputDevice "Keyboard1" "CoreKeyboard"
EndSection


======================

Greet'z

- Daniel