ubuntu9.04 10.04 解像度 変更

参考：
http://www.umacamelife.net/linuxnote1/reso.htm

http://deppari783.blog7.fc2.com/blog-entry-19.html

あともう一つあったけど、わからなくなった。

ubuntuを解像度古いPCにインストールすると、解像度がおかしくなるという現象が結構あるらしい。

このままやるとやばいことになるかも。

# xorg.conf (X.Org 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 xorg.conf manual page.
# (Type "man 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 "InputDevice"
Identifier "Generic Keyboard"
Driver "kbd"
Option "XkbRules" "xorg"
Option "XkbModel" "jp106"
Option "XkbLayout" "jp,jp"
Option "XkbVariant" "106,"
Option "XkbOptions" "grp:alt_shift_toggle,grp_led:scroll"
EndSection

Section "InputDevice"
Identifier "Configured Mouse"
Driver "mouse"
Option "CorePointer"
EndSection

Section "Device"
Identifier "Configured Video Device"
Boardname "SiS Real256E"
Busid "PCI:1:0:0"
Driver "sis"
Screen 0
Vendorname "SiS"
EndSection

Section "Monitor"
Identifier "Configured Monitor"
Vendorname "Generic LCD Display"
Modelname "LCD Panel 1024x768"
Horizsync 31.5-64.0
Vertrefresh 56.0 - 65.0
modeline "640x480@60" 25.2 640 656 752 800 480 490 492 525 -vsync -hsync
modeline "800x600@56" 36.0 800 824 896 1024 600 601 603 625 +hsync +vsync
modeline "800x600@60" 40.0 800 840 968 1056 600 601 605 628 +hsync +vsync
modeline "1024x768@60" 65.0 1024 1048 1184 1344 768 771 777 806 -vsync -hsync
modeline "1280x960@60" 102.1 1280 1360 1496 1712 960 961 964 994 -hsync +vsync
modeline "1280x1024@60" 108.0 1280 1328 1440 1688 1024 1025 1028 1066 +hsync +vsync
Gamma 1.0
EndSection

Section "Screen"
Identifier "Default Screen"
Monitor "Configured Monitor"
Device "Configured Video Device"
Defaultdepth 32
SubSection "Display"
Depth 32
Virtual 1024 768
Modes "1280x1024@60" "1280x960@60" "1024x768@60" "800x600@60" "800x600@56" "640x480@60"
EndSubSection
EndSection

Section "ServerLayout"
Identifier "Default Layout"
screen 0 "Default Screen" 0 0
EndSection
Section "Module"
Load "glx"
Load "GLcore"
Load "v4l"
EndSection
Section "ServerFlags"
EndSection

を適当に/home/username/xorgnew.confとでもして、
(画面の色を32ビットにした。Defaultdepth 32,Depth 32)
(http://www.umacamelife.net/linuxnote1/reso.htmでは16bitにしている)
まず、/etc/X11/xorg.confをバックアップしておく。
sudo mv xorg.conf xorg.conf.back
その後、
sudo cp /home/th4/xorgnew.conf /etc/X11/xorg.conf
でxorg.confに上書き。