[SOLVED] Issues with ATI Radeon and Xorg.conf

Mr. Swillis · 2008-11-20 03:04:46

Hello,

I've always been an nVidia user and recently setup a system that now has an ATI card in it. My xorg.conf file that I've always saved and used isn't producing the good results it does with nvidia cards. All I've done at this point is change the driver from "nvidia" to "fglrx". I can get a graphical login, but have a couple of issues.

1) Default resolution is higher than my monitor supports. It's trying to do 1920x1080, but I'm using a 19inch LCD that maxes at 1280x1024. I can change this in the ATI Config application *after* logging in, but resets to the higher res after logging out.

2) Probably the more bothersome of the two issues. 3D Rendering is quite poor (like 150 fps in glxgears), so I assum theres like a module or something I need to add to xorg.conf to get this thing working all the way. Here's my example xorg.conf file that I most likely picked up from something like Knoppix or Ubuntu that automagically configures it:

Section "Files"
EndSection

Section "InputDevice"
    Identifier    "Generic Keyboard"
    Driver        "kbd"
    Option        "CoreKeyboard"
    Option        "XkbRules"    "xorg"
    Option        "XkbModel"    "pc105"
    Option        "XkbLayout"    "us"
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"
    Driver        "wacom"
    Identifier    "stylus"
    Option        "Device"    "/dev/input/wacom"
    Option        "Type"    "stylus"
    Option        "ForceDevice"    "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
    Driver        "wacom"
    Identifier    "eraser"
    Option        "Device"    "/dev/input/wacom"
    Option        "Type"    "eraser"
    Option        "ForceDevice"    "ISDV4"# Tablet PC ONLY
EndSection

Section "InputDevice"
    Driver        "wacom"
    Identifier    "cursor"
    Option        "Device"    "/dev/input/wacom"
    Option        "Type"    "cursor"
    Option        "ForceDevice"    "ISDV4"# Tablet PC ONLY
EndSection

Section "Device"
    Identifier    "ATI Radeon 9600"
    Driver        "fglrx"
    Busid        "PCI:1:0:0"
    Option        "AddARGBVisuals"    "True"
    Option        "AddARGBGLXVisuals"    "True"
    Option        "NoLogo"    "True"
EndSection

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

Section "Screen"
    Identifier    "Default Screen"
    Device        "ATI Radeon 9600"
    Monitor        "Generic Monitor"
    Defaultdepth    24
EndSection

Section "ServerLayout"
    Identifier    "Default Layout"
  screen "Default Screen"
    Inputdevice    "Generic Keyboard"
    Inputdevice    "Configured Mouse"
    
    # Uncomment if you have a wacom tablet
    #    InputDevice     "stylus"    "SendCoreEvents"
    #    InputDevice     "cursor"    "SendCoreEvents"
    #    InputDevice     "eraser"    "SendCoreEvents"
EndSection
Section "Module"
    Load        "glx"
EndSection

If anyone could post me a working example xorg.conf for an ATI card or point out what I need to add, it would be greatly appreciated.

Thanks!

Swill

Last edited by Mr. Swillis (2008-11-20 04:21:16)

Mr. Swillis · 2008-11-20 04:20:49

Figured it out. Went to the ArchLinux ATI Wiki and found that I needed this:

Section "DRI"
Mode 0666
EndSection

That did the trick!

Swill

Arch Linux

#1 2008-11-20 03:04:46

[SOLVED] Issues with ATI Radeon and Xorg.conf

#2 2008-11-20 04:20:49

Re: [SOLVED] Issues with ATI Radeon and Xorg.conf

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