how to dual monitor in ati mobility

[lunaluna]

i have an ati mobility radeon and want to connect a second monitor...
i've never done this so i don't know where to start
also how to configure the options on the second monitor?

any help much appreciated

[skrribble]

i have configured dual monitors with my ati mobility x600 two different ways:

1. Currently I use the open source driver "ati". then i get the second monitor to work using xrandr. http://www.thinkwiki.org/wiki/Xorg_RandR_1.2 . that is a pretty useful link to use xrandr.

2. I have also used the proprietary driver "fglrx". I havent used this in about six months, but i always had trouble getting it to work using aticonfig or their catalyst control center. It may have gotten much better since then though.

Also, a word of advice, you may not be able to get dual monitors working with compiz. A lot of ati mobilitys only support 2048 pixels wide. That is the case with my x600.

[lunaluna]

i have configured dual monitors with my ati mobility x600 two different ways:

1. Currently I use the open source driver "ati". then i get the second monitor to work using xrandr. http://www.thinkwiki.org/wiki/Xorg_RandR_1.2 . that is a pretty useful link to use xrandr.

2. I have also used the proprietary driver "fglrx". I havent used this in about six months, but i always had trouble getting it to work using aticonfig or their catalyst control center. It may have gotten much better since then though.

Also, a word of advice, you may not be able to get dual monitors working with compiz. A lot of ati mobilitys only support 2048 pixels wide. That is the case with my x600.

well i use proprietary drivers which have improved a lot...
so probably i must use aticonfig to get it working but i don't know how to do it... properly

[skrribble]

http://wiki.cchtml.com/index.php/Configuring

that was the wiki that i always used to configure the driver.
By the way, what video card do you have, this might help with further questions.

[argail1980]

You can try to edit /etc/X11/xorg.conf, that's how I got my x1400 to talk to a second monitor. but until now this is only a cloned output, not a second desktop. works perfect for presentations.
But how exactly to do it depends on your current configuration, I cannot just post my xorg.conf.

Maybe you post your's, we'll have a look then

[skrribble]

also, try installing the catalyst control center with
sudo apt-get install fglrx-controland try configuring the driver from there. the control panel should be under applications> accesories or maybe applications>system tools. I can't remember or the top of my head.