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Thread: [SOLVED] xorg.conf problems with old imac

  1. #1
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    [SOLVED] xorg.conf problems with old imac

    In my last thread I figured out how to get the imac to the command prompt. But I have run into a brick wall with the xorg.conf. With the stock xorg.conf it ends up with a black screen.
    So I went on a search of the forums and found a xorg.conf. The computer ends up with a blue screen telling me the x server isnt configured and that the failsafe failed if I click Yes.
    Here is an xorg.conf I have that at least leads to the blue screen.




    Code:
    Section "Device"
    	Identifier	"ATI Technologies Inc Rage 128 Pro Ultra TR"
    	Driver		"ati"
            BusID           "PCI:0:18:0"
    	Option		"UseFBDev"		"true"
    EndSection
    
    
    Section "Monitor"
    	Identifier	"iMac"
    	Option		"DPMS"
    	HorizSync	58-62
             VertRefresh	75-117
    
    EndSection
    
    Section "Screen"
    	Identifier	"Default Screen"
    	Device		"ATI Technologies Inc Rage 128 Pro Ultra TR"
    	Monitor		"iMac"
    	DefaultDepth	24
    	SubSection "Display"
    		Modes	"800x600" "640x480"
    	EndSubSection
    EndSection
    Would anyone have a working setup for one of these old 266 iMacs, or a clue as to how to get this working? I have reinstalled xorg and xubuntu desktop. I have tried dpkg-reconfigure xserver-xorg with and without the -phigh. I have a working cli system, but cant get to the desktop.
    I trust Microsoft as far as I could comfortably spit a dead rat

    I'm in my third year at a Lutheran seminary!

  2. #2
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    Re: xorg.conf problems with old imac

    PowerMac G5 Debian Squeeze - MacOSX Leopard / Lenovo 3000 N200 Debian Wheezy
    PowerPCFAQ, PowerPCKnownIssues, Booting the Installer on PowerPC, Yaboot - How to configure the PPC Bootloader

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    Re: xorg.conf problems with old imac

    Quote Originally Posted by tiresia View Post
    Thanks for the link, now it goes to a blank screen when it should show the login and the power button goes orange. I can actually sign in and hit ctl + alt + f1 and get to a command line. But I still have no desktop.
    I trust Microsoft as far as I could comfortably spit a dead rat

    I'm in my third year at a Lutheran seminary!

  4. #4
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    Re: xorg.conf problems with old imac

    Try
    Code:
    Option		"UseFBDev"		"false"

  5. #5
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    Re: xorg.conf problems with old imac

    Thanks for the suggestion, but it didnt work. I then went and lowered the VertRefresh to 50-60 then 50-70 and I have a desktop. Its only 640x480, but at least its progress.

    This xorg.conf is the current one.

    Code:
    Section "Device"
    	Identifier	"ATI Technologies Inc Rage 128 Pro Ultra TR"
    	Driver		"ati"
            BusID           "PCI:0:18:0"
    	Option		"UseFBDev"		"false"
    EndSection
    
    
    Section "Monitor"
    	Identifier	"iMac"
    	Option		"DPMS"
    	HorizSync	58-60
             VertRefresh	50-70
    
    EndSection
    
    Section "Screen"
    	Identifier	"Default Screen"
    	Device		"ATI Technologies Inc Rage 128 Pro Ultra TR"
    	Monitor		"iMac"
    	DefaultDepth	24
    	SubSection "Display"
    		Modes	"1027x768" "800x600" "640x480"
    	EndSubSection
    EndSection
    I trust Microsoft as far as I could comfortably spit a dead rat

    I'm in my third year at a Lutheran seminary!

  6. #6
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    Re: xorg.conf problems with old imac

    Of course it should be 1024
    Quote Originally Posted by Kilz View Post
    Modes "1024x768" "800x600" "640x480"
    Why don't you try with the values from the link I gave you?
    PowerMac G5 Debian Squeeze - MacOSX Leopard / Lenovo 3000 N200 Debian Wheezy
    PowerPCFAQ, PowerPCKnownIssues, Booting the Installer on PowerPC, Yaboot - How to configure the PPC Bootloader

  7. #7
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    Re: xorg.conf problems with old imac

    Thank you very much for this information. I had the same problem. 'startx' or 'start(anyx)' crashed my system (Power Mac G4 466 DA) too. Now I'm happy. Thanks again.

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    Re: xorg.conf problems with old imac

    Quote Originally Posted by tiresia View Post
    Of course it should be 1024


    Why don't you try with the values from the link I gave you?
    The values in the link you gave dont work. They leave me with a blank screen and a orange start button. I will edit the 1024, but I cant even get into 800x600. I have a feeling there is some driver not loading.
    I trust Microsoft as far as I could comfortably spit a dead rat

    I'm in my third year at a Lutheran seminary!

  9. #9
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    Re: xorg.conf problems with old imac

    The reason for the black screen lies in the hardware: the screen won't sync on anything but 60 kHz horizontal frequency. The values in your first post are the correct ones:
    Code:
    HorizSync 59-61
    VertRefresh 75-117
    Put those values into the xorg.conf that gives you black screen, and it should work. I have a 333 Mhz iMac that is working with 1024x768 resolution in Ubuntu 6.06.

    Risto

  10. #10
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    Re: xorg.conf problems with old imac

    Quote Originally Posted by ristosu View Post
    The reason for the black screen lies in the hardware: the screen won't sync on anything but 60 kHz horizontal frequency. The values in your first post are the correct ones:
    Code:
    HorizSync 59-61
    VertRefresh 75-117
    Put those values into the xorg.conf that gives you black screen, and it should work. I have a 333 Mhz iMac that is working with 1024x768 resolution in Ubuntu 6.06.

    Risto
    Thanks , Ill try that, but can you please post or attach the xorg.conf for that machine?
    I trust Microsoft as far as I could comfortably spit a dead rat

    I'm in my third year at a Lutheran seminary!

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