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Thread: iMac g3 with Rage 128 gives frame buffer error (2011)

  1. #31
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
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    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    Yes use the cvt command. You will just get a different output from me. Run it for the resolutions you want.
    Last edited by rsavage; December 31st, 2011 at 08:50 PM. Reason: spelling

  2. #32
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    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    so i put it to the 800 600 resolution but it didn't do anything

  3. #33
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
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    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    To be honest, I can't explain an xorg.conf file any better than in the lubuntu instructions. It is something you are going to have to experiment with. If you want me to tell you why the 800x600 resolution is not working then you'll have to supply the xorg.conf you are using and Xorg.0.log. I suspect you are using a different mode name to that referenced in the screen section.

  4. #34
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
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    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    Quote Originally Posted by rsavage View Post
    To be honest, I can't explain an xorg.conf file any better than in the lubuntu instructions.
    Well, not true as I've made some more additions.

    r128 owners maybe interested in this bug https://bugs.launchpad.net/ubuntu/+s...28/+bug/133119 . It explains a lot of the commented out options in the xorg.conf that narcisgarcia provided in post #1 of this thread. You can try adding them to your xorg.conf.

  5. #35
    rsavage is offline Iced Almond Soy Ubuntu, No Foam
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    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    I've been doing a bit more digging into this - trying to get my head around all the different components at work here. There is a good explanation on around the 6th post in this gentoo thread http://forums.gentoo.org/viewtopic-t...6-start-0.html .

    That seems to suggest there was a problem in 2008 with AIGLX and Rage 128/Mach 64 cards. So I looked up the AIGLX documentation at Fedora http://fedoraproject.org/wiki/RenderingProject/aiglx and that still has the cards listed as not working.

    So maybe the thing to do is add

    Code:
    Section "ServerFlags"
    Option  "AIGLX" "off"
    EndSection
     
    Section "Extensions"
    Option "Composite" "Disable"
    EndSection
    to the xorg.conf as suggested at the bottom of the Fedora page?

    We really need somebody with an r128 card to have a good experiment with all these options and report back.

    I still can't work out how the framebuffers interact with all this. Do you need to manually set the framebuffer resolution to match the Xorg resolution? Also, the powerpcFAQ suggests in the tweak section that the UseFBDev option slows 3D performance for radeon cards https://wiki.ubuntu.com/PowerPCFAQ#A...eryl.2C_Compiz . This seems to contadict other advice regarding this option for the r128. Does this option impact the working of AIGLX???
    Last edited by rsavage; January 1st, 2012 at 05:54 PM.

  6. #36

    Re: iMac g3 with Rage 128 gives frame buffer error (2011)

    A domain name has changed for Lapipaplena. Please update the link for:
    http://wiki.gilug.org/index.php/Appl...350-ubuntu1104
    Narcis Garcia

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