[ubuntu-ar] Driver ati libre (radeon)

[Mauricio Notti]

Hola a todos,

sigo intentando reemplazar los drivers propietarios de ATI (fglrx) por
la alternativa libre (radeon). Mi placa (según lspci) es una Mobility
Radeon X300, que al parecer estaría dentro de las placas para los
cuales la aceleración 2D y 3D debería funcionar bien, según leo en
http://www.thinkwiki.org/wiki/ATI_Mobility_Radeon_X300 : «The X.org
radeon driver works well and support 2D acceleration and some other
functionality such as basic power amangement. In conjunction with the
r300 DRI driver, radeon also provides 3D acceleration (the latter is
not yet stable)».

Seguí este tutorial
https://help.ubuntu.com/community/RadeonDriver#head-de8fa92c38d23a0a45d2ac513a4e5bb85ac9e919
pero no tuve suerte. El rendimiento es *muy* malo, las ventanas tardan
segundos en maximizar, se mueven lentísimo y cosas por el estilo. Todo
esto en Ubuntu 7.10 con la siguiente configuración (ver xorg.conf más
abajo).

¿Alguna idea?

¡Gracias de antemano!

Section "InputDevice"
        Identifier      "Generic Keyboard"
        Driver          "kbd"
        Option          "CoreKeyboard"
        Option          "XkbRules"      "xorg"
        Option          "XkbModel"      "pc105"
        Option          "XkbLayout"     "us"
        Option          "XkbOptions"    "lv3:ralt_switch"
EndSection

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

Section "InputDevice"
        Identifier      "Synaptics Touchpad"
        Driver          "synaptics"
        Option          "SendCoreEvents"        "true"
        Option          "Device"        "/dev/psaux"
        Option          "Protocol"      "auto-dev"
        Option          "HorizEdgeScroll"       "0"
EndSection

Section "Device"
        Identifier      "ATI Technologies Inc M22 [Mobility Radeon X300]"
        Driver            "ati"
        Busid               "PCI:1:0:0"
  Option          "XAANoOffscreenPixmaps"   # The "XAANoOffscreenPixmaps" option
                                            # maybe necessary for AIGLX desktop
                                            # acceleration, you can try
                                            # disabling it and it should work
                                            # fine (maybe quicker) for the
                                            # newest versions of ubuntu.
EndSection

Section "Monitor"
        Identifier      "Generic Monitor"
        Option          "DPMS"
        Horizsync       30-70
        Vertrefresh     50-160
EndSection

Section "Screen"
        Identifier      "Default Screen"
        Device          "ATI Technologies Inc M22 [Mobility Radeon X300]"
        Monitor         "Generic Monitor"
        Defaultdepth    24
        SubSection "Display"
                Modes           "1280x800"
        EndSubSection
EndSection

Section "DRI"
        Mode 0666
EndSection

Section "Extensions"
        Option "Composite" "Enable"
EndSection

Section "ServerLayout"
       Option          "AIGLX"         "true"

        Identifier      "Default Layout"
        Screen      "Default Screen"

        Inputdevice     "Generic Keyboard"
        Inputdevice     "Configured Mouse"
        Inputdevice     "Synaptics Touchpad"
EndSection