转自：http://bbs.pcbeta.com/viewthread.php?tid=273220
Envy可以傻瓜式安装ATI 和NVIDIA显卡官方驱动
网址http://www.albertomilone.com/nvidia_scripts1.html
以下是我在8。04的安装ATI的体验
如果已经装过XGL则
1，sudo apt-get remove xserver-xgl
2，sudo apt-get remove xorg-driver-fglrx
3，sudo rm -f /usr/src/fglrx-kernel*.deb
之后重启电脑，如果重启电脑之后无法进入图形界面，则修改/etc/X11/xorg.conf,将Device的Driver这一行删掉或注视掉。
要是刚刚安装好的ubuntu就可以直接安装envy，不要作以上的命令
安装envy
1,sudo apt-get install envyng-gtk
2,sudo apt-get install envyng-qt
3,sudo apt-get install envyng-core
等envy安装好了，进入应用程序－系统工具－EnvyNG
打开程序，这里要你输入管理员密码，输入之后打开程序
我用的是ATI，选Install the ATI driver (Automatic Hardware Detection)
自动安装，安装好了之后不要点是那样会重新启动，
注意不要让系统重启
这时打开终端，输入
sudo gedit /etc/X11/xorg.conf
要确定在"Device"部分有Driver"fglrx"，并对照下面进行修改
Section "Device"
Identifier "ATI Technologies Inc R480 [Radeon X850XT Platinum (PCIE)]"
Driver "fglrx"
Option "VideoOverlay" "on"
Option "OpenGLOverlay" "off"
Option "AIGLX" "true"
BusID "PCI:1:0:0"
EndSection
在如下其他的setion要是没有的话就添加代码，要是Sction "Module"没有的话，就整个添加，
Section "Module"
Load "dri"
Load "v4l"
Load "dbe"
Load "glx"
EndSection
Section "Extensions"
Option "Composite" "Enable"
EndSection
Section "DRI"
Mode 0666
EndSection
修改好，就保存退出，重启电脑
看看是安装好了。打开 系统－首选项－外观－视觉效果，选扩展，保存退出。
可以试试效果，按住win+tab看看是不是跟vista一样的立体感
要是安装好了输入
sudo gedit /etc/xdg/compiz/compiz-manager
添加红色的代码要是没有的话
# Ubuntu specifc compiz-manager configuration file
# goes into /etc/xdg/compiz/compiz-manager
# works with git://anongit.compiz-fusion.org/fusion/misc/compiz-manager
COMPIZ_BIN_PATH="/usr/bin/"
PLUGIN_PATH="/usr/lib/compiz/"
COMPIZ_NAME="compiz.real"
SKIP_CHECKS="yes"
保存退出，重启，就可以使用了。
最后更新和安装Compiz及Compiz fusion
代码:
sudo apt-get install compiz compiz-gnome
sudo apt-get install compizconfig-settings-manager
sudo apt-get install compiz-fusion-*
这样就可以在打开compiz来设置更多的立体效果：系统－首选项-Advanced Desktop D S
Thursday, March 26, 2009
Wednesday, March 25, 2009
COMMAND AND CONQUER
Ever had a video clip you
wanted to reduce in size
and add to a slideshow for a
presentation? Or, maybe convert
into another format so that you
could play it? Today, I will show
you how to do both of those
things using the command-line
tool 'ffmpeg'. I will also introduce
you to the 'mogrify' command,
which is an image-editing tool
contained in the imagemagick
package. It allows you to do many
things, but I will cover the basics –
mostly the resizing of images (e.g.
for thumbnails or other small
images).
To use these tools, you will need
to install ffmpeg and
imagemagick through either
Synaptic Package Manager or
Add/Remove Applications, or, in
the spirit of this article, through
the command-line with:
sudo apt-get install ffmpeg
imagemagick
It's safe to run the install
command – if you're unsure whether
or not you've already installed it –
since apt-get will not overwrite the
existing program, but merely inform
you that it's already installed. Also, it
will ask you for your password (since
you're using sudo), and, if you're new
to this, you may be surprised that it
does not show anything when you
enter your password. This is normal,
just type your password and hit the
enter key.
For this article I will be converting
a short clip from "Freedom
Downtime" which I used in a
presentation. ffmpeg offers a lot of
options (which you can read about in
detail in the roughly 13-page-long
manpage – by using the command
"man ffmpeg"), but the option I use
most frequently is the option to
convert files. The format for such a
command is:
ffmpeg -i inputfile.filetype
outputfile.filetype
That command would just convert
the input file to whatever output file
you specified in 'output.filetype'
– without changing the size
(since, if the size is not specified,
ffmpeg defaults to the size of the
source). However, to convert
"Freedom Downtime" (starting
size of 640x480) to a smaller clip
(say 320x240), the command
would look like this:
ffmpeg -i freedom\
downtime.mpg -s 320x240
freedom\ downtime\ resized.mpg
Of course, you could also
change the format of the file at
the same time by changing the
file extension. This shouldn't
take too long (obviously
depending on the size of the
clip). My clip was a few minutes
long, and took maybe 30
seconds to convert on my laptop.
Mogrify is a very handy tool,
especially if you find yourself
posting a lot of pictures on web
forums that don't allow uploads
of images exceeding a certain
size, or do not allow linking to
large images for previews in
posts. I use mogrify mainly for
making thumbnails of images,
but it can do many more things,
such as adding text, adding
effects (charcoal, colorized, etc.)
and much more (it's all outlined,
once again, in the manpage,
reached with "man mogrify").
Mogrify supports resize
arguments in either percentages
or pixel values. So, for example, if
you have a 1280x800 pixel image
which you want to resize to
640x400, you can do so with
either:
mogrify -resize 50 in.jpg
out.jpg
or:
mogrify -resize 640x400 in.jpg
out.jpg
or even just:
mogrify -resize 50% in.jpg
out.jpg
However, if the pixel
measurements and the aspectratio
you supply are different, it
could result in a smaller image
than expected, as it will scale to
the nearest values that are still in
proportion. Mogrify also has a
thumbnail argument, which does
roughly the same as the resize
option, yet it removes any
unnecessary comments, etc. from
the file header to reduce image size.
So using that tool the command
would be:
mogrify -thumbnail 50 in.jpg
out.jpg
You can also use it to convert
images using the “-format”
argument. So,
mogrify -format jpg *.png
will convert all the .png files in the
current directory into .jpg format
(names will be the same).
As you can see, contrary to
common belief, command-line tools
can help with graphical projects, and
often do it more quickly or more
effectively than a GUI program with
confusing menus and/or different
layouts in newer versions. The
command will (usually) stay the
same, and arguments are very rarely
changed. And so, command-line tools
are much more universal – which is
why users on ubuntuforums.org
usually supply commands instead of
GUI methods for solutions, since the
commands apply to Kubuntu,
Xubuntu and Ubuntu, as well as
you've found this useful, and
next time you need to convert a
video or an image, you'll
remember mogrify and ffmpeg.
After all, practice makes perfect.
From Full Circle
wanted to reduce in size
and add to a slideshow for a
presentation? Or, maybe convert
into another format so that you
could play it? Today, I will show
you how to do both of those
things using the command-line
tool 'ffmpeg'. I will also introduce
you to the 'mogrify' command,
which is an image-editing tool
contained in the imagemagick
package. It allows you to do many
things, but I will cover the basics –
mostly the resizing of images (e.g.
for thumbnails or other small
images).
To use these tools, you will need
to install ffmpeg and
imagemagick through either
Synaptic Package Manager or
Add/Remove Applications, or, in
the spirit of this article, through
the command-line with:
sudo apt-get install ffmpeg
imagemagick
It's safe to run the install
command – if you're unsure whether
or not you've already installed it –
since apt-get will not overwrite the
existing program, but merely inform
you that it's already installed. Also, it
will ask you for your password (since
you're using sudo), and, if you're new
to this, you may be surprised that it
does not show anything when you
enter your password. This is normal,
just type your password and hit the
enter key.
For this article I will be converting
a short clip from "Freedom
Downtime" which I used in a
presentation. ffmpeg offers a lot of
options (which you can read about in
detail in the roughly 13-page-long
manpage – by using the command
"man ffmpeg"), but the option I use
most frequently is the option to
convert files. The format for such a
command is:
ffmpeg -i inputfile.filetype
outputfile.filetype
That command would just convert
the input file to whatever output file
you specified in 'output.filetype'
– without changing the size
(since, if the size is not specified,
ffmpeg defaults to the size of the
source). However, to convert
"Freedom Downtime" (starting
size of 640x480) to a smaller clip
(say 320x240), the command
would look like this:
ffmpeg -i freedom\
downtime.mpg -s 320x240
freedom\ downtime\ resized.mpg
Of course, you could also
change the format of the file at
the same time by changing the
file extension. This shouldn't
take too long (obviously
depending on the size of the
clip). My clip was a few minutes
long, and took maybe 30
seconds to convert on my laptop.
Mogrify is a very handy tool,
especially if you find yourself
posting a lot of pictures on web
forums that don't allow uploads
of images exceeding a certain
size, or do not allow linking to
large images for previews in
posts. I use mogrify mainly for
making thumbnails of images,
but it can do many more things,
such as adding text, adding
effects (charcoal, colorized, etc.)
and much more (it's all outlined,
once again, in the manpage,
reached with "man mogrify").
Mogrify supports resize
arguments in either percentages
or pixel values. So, for example, if
you have a 1280x800 pixel image
which you want to resize to
640x400, you can do so with
either:
mogrify -resize 50 in.jpg
out.jpg
or:
mogrify -resize 640x400 in.jpg
out.jpg
or even just:
mogrify -resize 50% in.jpg
out.jpg
However, if the pixel
measurements and the aspectratio
you supply are different, it
could result in a smaller image
than expected, as it will scale to
the nearest values that are still in
proportion. Mogrify also has a
thumbnail argument, which does
roughly the same as the resize
option, yet it removes any
unnecessary comments, etc. from
the file header to reduce image size.
So using that tool the command
would be:
mogrify -thumbnail 50 in.jpg
out.jpg
You can also use it to convert
images using the “-format”
argument. So,
mogrify -format jpg *.png
will convert all the .png files in the
current directory into .jpg format
(names will be the same).
As you can see, contrary to
common belief, command-line tools
can help with graphical projects, and
often do it more quickly or more
effectively than a GUI program with
confusing menus and/or different
layouts in newer versions. The
command will (usually) stay the
same, and arguments are very rarely
changed. And so, command-line tools
are much more universal – which is
why users on ubuntuforums.org
usually supply commands instead of
GUI methods for solutions, since the
commands apply to Kubuntu,
Xubuntu and Ubuntu, as well as
you've found this useful, and
next time you need to convert a
video or an image, you'll
remember mogrify and ffmpeg.
After all, practice makes perfect.
From Full Circle
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