Change to Debian 7.1 from CentOS 6.4 And caught display resolution problem

Recently, I have started to use CentOS (6.4), although I used ubuntu 10.4 - 12.4LTS previously.

I had felt that ubuntu OS is not match as server OS. Since the development policy of ubuntu and frequently a lot of updates are not suitable the server such as providing a long term services.
I tried to change from ubuntu to CentOS, but I could not use CentOS well, because of differ a package installation system.

From the above reason, I will try to use Debian OS as a home application server.

I tried to install the Debian 7.1 on the ASUS K53TK. The Debian is installed successfully, but except ATM RADEON 7670M driver.

From a teacher "Google", he answered me http://packages.debian.org/search?keywords=firmware-linux-nonfree site.

I got a "wheezy (stable)"'s firmware-linux-nonfree package, and intalled it by dpkg.
Then my monitor is displayed as 1366x768 that is highest resolution on my machine (asus k53tk), though the monitor displayed only XGA (1024x768).