Solve Centos ATI Video Card installation, "LCD signal out of range"

Solve Centos ATI Video Card installation, "LCD signal out of range"

Centso ATI graphics card Driver Installation

Centos 32-bit 6.4 Final

ATI graphics card version: Radeon HD 7400 Series

Since I installed my centos video card for a long time, the resolution is very low and cannot be adjusted. Today I want to solve this problem completely and find some information to finally solve it.

Reference 1: http://www.cnblogs.com/fsjohnhuang/p/3906340.html

1. First, delete the previously installed driver.

[tuzhuke@localhost ~]$ cd /usr/share/ati/[root@localhost ~]# sh amd-uninstall.sh

2. Follow the steps in reference 1 to install

1)

rpm --import http://elrepo.org/RPM-GPG-KEY-elrepo.org

2)

rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpmyum -y install yum-plugin-fastestmirror

3)

yum -y install kmod-fglrx

4) restart the system

* ***** At this time, if you restart the system directly, the screen may not be able to enter the system, black screen, or floral screen because of the high screen resolution. The screen display signal is out of the range ******

If you do not have access to the system, the solution is as follows: Use grup to enter the single mode. For more information, see article 2 http://www.it165.net/ OS /html/201404/8068.htm:

1. restart the system.

2. Press "e" to go to detailed settings.

3. move the cursor over the kernel.

4. Click "e" to enter the editing page.

5. The following page is displayed.

6. Enter single and press Enter.

7. Press "B ".

8. Enter the singleton maintenance mode as follows. Now in this mode, you can change the password again. You can edit the file with incorrect configuration and restart the system.

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Modify xorg. conf in the/etc/X11 folder in the command line.

[root@localhost X11]# cp xorg.conf xorg.conf.bak[root@localhost X11]# cp xorg.conf.fglrx-0 xorg.conf

The first step is to back up the xorg. conf file and recover it from problems later.

Second, copy and rename the configuration file of fglrx

Restart the computer. The computer starts normally. The video card is installed successfully.

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After the video card driver is installed, modify the xorg. conf file in the/etc/X11 folder before it is started. This may prevent "signal out of range ".