xorg and radeon, widescreen

[Paul Schmehl]

--On Tuesday, April 08, 2008 11:29:34 +0100 Max Russell 
<thedossone at googlemail.com> wrote:

> I'm having issues with my X1350, video7 flatscreen and xorg.conf - the
> relevant sections of my xorg follow:
>
> Section "ServerLayout"
>     Identifier     "X.org Configured"
>     Screen      0  "Screen0" 0 0
>     InputDevice    "Mouse0" "CorePointer"
>     InputDevice    "Keyboard0" "CoreKeyboard"
> EndSection
>
> Section "Files"
>     RgbPath      "/usr/local/share/X11/rgb"
>     ModulePath   "/usr/local/lib/xorg/modules"
>     FontPath     "/usr/local/lib/X11/fonts/misc/"
>     FontPath     "/usr/local/lib/X11/fonts/TTF/"
>     FontPath     "/usr/local/lib/X11/fonts/OTF"
>     FontPath     "/usr/local/lib/X11/fonts/Type1/"
>     FontPath     "/usr/local/lib/X11/fonts/100dpi/"
>     FontPath     "/usr/local/lib/X11/fonts/75dpi/"
>     FontPath     "/usr/local/lib/X11/fonts/URW/"
> EndSection
>
> Section "Module"
>     Load  "GLcore"
>     Load  "dbe"
>     Load  "dri"
>     Load  "extmod"
>     Load  "glx"
>     Load  "record"
>     Load  "xtrap"
>     Load  "freetype"
>     Load  "type1"
> EndSection
>
> Section "Monitor"
>     Identifier   "Monitor0"
>     VendorName   "VideoSeven"
>     ModelName    "R19W01"
>     Modeline "1440x900_60.00"  106.47  1440 1520 1672 1904  900 901 904 932
> -HSync +Vsync
> EndSection
>
> Section "Device"
>         ### Available Driver options are:-
>         ### Values: <i>: integer, <f>: float, <bool>: "True"/"False",
>         ### <string>: "String", <freq>: "<f> Hz/kHz/MHz"
>         ### [arg]: arg optional
>         #Option     "ShadowFB"               # [<bool>]
>         #Option     "DefaultRefresh"         # [<bool>]
>         #Option     "ModeSetClearScreen"     # [<bool>]
>     Identifier  "Card0"
>     Driver      "vesa"
>     VendorName  "ATI Technologies Inc"
>     BoardName   "RV515 [Radeon X1300]"
>     BusID       "PCI:2:0:0"
> EndSection
>
> Section "Screen"
>     Identifier "Screen0"
>     Device     "Card0"
>     Monitor    "Monitor0"
>     DefaultDepth 24
>     SubSection "Display"
>         Viewport   0 0
>         Depth     1
>     EndSubSection
>     SubSection "Display"
>         Viewport   0 0
>         Depth     4
>     EndSubSection
>     SubSection "Display"
>         Viewport   0 0
>         Depth     8
>     EndSubSection
>     SubSection "Display"
>         Viewport   0 0
>         Depth     15
>     EndSubSection
>     SubSection "Display"
>         Viewport   0 0
>         Depth     16
>     EndSubSection
>     SubSection "Display"
>         Viewport   0 0
>         Depth     24
>         Modes "1440x900_60"
>     EndSubSection
> EndSection
>
> this fails to start x with the /var/log entry reading -
> (WW) RADEON: No matching Device section for instance (BusID PCI:2:0:1) found
> (EE) No devices detected.
>
> Fatal server error:
> no screens found
>
> It has been suggested to me that I comment out the BusID entry, however I am
> unsure as to why this should work?

No.  Change the driver from vesa to radeonhd, and make sure the radeonhd drive 
is installed and loaded.

x11-drivers/xf86-video-radeonhd

I'm running dual widescreens with that driver, and it works well, except 
acceleration isn't working yet.
# grep radeonhd /var/log/Xorg.0.log
(II) LoadModule: "radeonhd"
(II) Loading /usr/local/lib/xorg/modules/drivers//radeonhd_drv.so
(II) Module radeonhd: vendor="AMD GPG"

-- 
Paul Schmehl (pauls at utdallas.edu)
Senior Information Security Analyst
The University of Texas at Dallas
http://www.utdallas.edu/ir/security/