Display -- ATI Radeon 9000, 1280x768 LCD display

By default, Xubuntu uses a VESA driver. This can be seen in /etc/X11/xorg.conf under `Section Device', `Driver = vesa'.

Xubuntu provides a way to re-configure the driver `sudo dpkg-reconfigure xserver-xorg'. This decides that the Muramasa requires the ATI driver and has a 1280x768 display. Unfortunately, despite the lack of warning to be found in /var/log/Xorg.0.log, the resulting configuration file does not work.

What I did was use the `Driver ``radeon'' ' driver under Section `Device'. Under Section ``Screen'' I then manually added ``1280x768'' to the ``Modes'' lines. No other modes work. Under Section ``monitor'' I place `Displaysize 158 95'. However. this worked only a few times before it mysteriously stopped working. Remove or comment out the DRI option in the `modules' section of xorg.conf. Here is my complete xorg.conf.

# /etc/X11/xorg.conf (xorg 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 /etc/X11/xorg.conf manual page.

# (Type "man /etc/X11/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.

#

# 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/100dpi"

 FontPath "/usr/share/X11/fonts/75dpi"

 # path to defoma fonts

 FontPath "/var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType"

EndSection

Section "Module"

 Load "i2c"

 Load "bitmap"

 Load "ddc"

 # Load "dri" # possibly some error in Xorg 7.0 results in this failing intermittently

 Load "extmod"

 Load "freetype"

 Load "glx"

 Load "int10"

 Load "type1"

 Load "vbe"

EndSection

Section "InputDevice"

 Identifier "Generic Keyboard"

 Driver "kbd"

 Option "CoreKeyboard"

 Option "XkbRules" "xorg"

 Option "XkbModel" "pc105"

 Option "XkbLayout" "jp"

 Option "XkbVariant" "jp106"

EndSection

Section "InputDevice"

 Identifier "Configured Mouse"

 Driver "mouse"

 Option "CorePointer"

 Option "Device" "/dev/input/mice"

 Option "Protocol" "ExplorerPS/2"

 Option "ZAxisMapping" "4 5"

 Option "Emulate3Buttons" "true"

EndSection

Section "Device"

 Identifier "ATI Technologies, Inc. Radeon Mobility M6 LY [Radeon Mobility 9000]"

 Driver "radeon"

 BusID "PCI:1:0:0"

EndSection

Section "Monitor"

 Identifier "Generic Monitor"

 Option "DPMS"

 HorizSync 28-33

 VertRefresh 43-72

 DisplaySize 158 95

EndSection

Section "Screen"

 Identifier "Default Screen"

 Device "ATI Technologies, Inc. Radeon Mobility M6 LY [Radeon Mobility 9000]"

 Monitor "Generic Monitor"

 DefaultDepth 24

 SubSection "Display"

 Depth 1

 Modes "1280x768"

 EndSubSection

 SubSection "Display"

 Depth 4

 Modes "1280x768"

 EndSubSection

 SubSection "Display"

 Depth 8

 Modes "1280x768"

 EndSubSection

 SubSection "Display"

 Depth 15

 Modes "1280x768"

 EndSubSection

 SubSection "Display"

 Depth 16

 Modes "1280x768"

 EndSubSection

 SubSection "Display"

 Depth 24

 Modes "1280x768"

EndSubSection

EndSection

Section "ServerLayout"

 Identifier "Default Layout"

 Screen "Default Screen"

 InputDevice "Generic Keyboard"

 InputDevice "Configured Mouse"

 EndSection

 Section "DRI"

 Mode 0666

EndSection

I tried to download ATI's own drivers, the `fglrx' package. Unfortunately, this driver failed to open a screen, complaining that no devices were detected, despite detecting that PCI:1:0:0 was the correct bus. Adding `fglrx' to the end of /etc/modules did not help.