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Thread: 9.04 / Mac Mini PPC 1.42 / RV280 / bad 3D performance

  1. #1
    Join Date
    May 2009
    Beans
    14
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    (solved) 9.04 / Mac Mini PPC 1.42 / RV280 / bad 3D performance

    Hello,

    I have installed U9.04, all went very well... except when running an OpenGL app.

    As the screensavers were horribly slow too (and with a strange blue background) I tried glxgear and with the default small window I hardly reach 100 FPS.

    It seems that the Radeon 9200/RV280 should reach 2000 FPS (http://www.free3d.org/).

    So is there a special driver to install ?

    my xorg.conf extract :
    Section "Device"
    Identifier "ATI Technologies Inc RV280 [Radeon 9200]"
    Driver "ati"
    BusID "PCI:0:16:0"
    Option "UseFBDev" "false"
    Option "AGPMode" "4"
    Option "AGPFastWrite" "true"
    EndSection
    I tried to modify AGPFastWrite, UseFBDev,... no effect.

    thanks in advance !
    Last edited by Shazz.ng; May 17th, 2009 at 04:29 PM. Reason: solved

  2. #2
    Join Date
    Jun 2005
    Location
    Louisville, KY
    Beans
    70
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Re: 9.04 / Mac Mini PPC 1.42 / RV280 / bad 3D performance

    try Option "BusType" "PCI" as per https://wiki.ubuntu.com/PowerPCKnownIssues

  3. #3
    Join Date
    May 2009
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    14
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Re: 9.04 / Mac Mini PPC 1.42 / RV280 / bad 3D performance

    Eh eh it looks it is a little more than "broken Desktop effects " !

    So that's 5x better, about 500 FPs now, no more blue bakckground, but very glitchy (if you move the mouse, a window, whatever, it goes from 80 FPS to 1000 FPs if the gears are hidden) and unstable.

    But far from 2000 FPs.... I tried some screensavers in fullscreen and that's still very slow.

    Can I tweak something ? Or I won't do better ?

    # xorg.conf (X.Org 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 xorg.conf manual page.
    # (Type "man 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.
    #
    # Note that some configuration settings that could be done previously
    # in this file, now are automatically configured by the server and settings
    # here are ignored.
    #
    # 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"
    EndSection


    Section "Module"
    Load "GLcore"
    Load "i2c"
    Load "bitmap"
    Load "ddc"
    Load "dri"
    Load "extmod"
    Load "freetype"
    Load "glx"
    Load "int10"
    Load "type1"
    Load "vbe"
    EndSection


    Section "Device"
    Identifier "ATI Technologies, Inc. Radeon 9200 (RV280)"
    Driver "ati"
    BusID "PCI:0:16:0"
    Option "UseFBDev" "false"
    Option "AGPMode" "4"
    Option "AGPFastWrite" "true"
    Option "BusType" "PCI"
    EndSection

    Section "Monitor"
    Identifier "Configured Monitor"
    EndSection

    Section "Screen"
    Identifier "Default Screen"
    Monitor "Configured Monitor"
    Device "ATI Technologies, Inc. Radeon 9200 (RV280)"
    DefaultDepth 24
    SubSection "Display"
    Depth 1
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection
    SubSection "Display"
    Depth 4
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection
    SubSection "Display"
    Depth 8
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection
    SubSection "Display"
    Depth 15
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection
    SubSection "Display"
    Depth 16
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection
    SubSection "Display"
    Depth 24
    Modes "1280x1024" "1272x1017" "1024x768" "880x660" "800x600" "760x608" "720x400" "640x480"
    EndSubSection

    EndSection

  4. #4
    Join Date
    May 2009
    Beans
    14
    Distro
    Ubuntu 9.04 Jaunty Jackalope

    Re: 9.04 / Mac Mini PPC 1.42 / RV280 / bad 3D performance

    I have upgraded the kernel to 2.6.29.-3 and it works really better... 1300 FPS now...

    I guess it could be more but should be enough for the moment !

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