Laptop Linux Sound System Installation

Laptop Linux sound system installation
Laptops generally do not use a plug-in sound card, but a built-in sound system, so it is often impossible to set the sound system in accordance with the desktop method. Many people install Linux system on their laptops, but cannot make it sound, so they cannot use various multimedia software.

　　Below, the Linux editor of Brotherhood takes a 4000CDT laptop as an example to introduce how to install the sound system on the laptop. The processor of this machine is PII233, and the instruction manual points out that its sound system is compatible with SBPro (Sound BlasterPro) and WSS (Windows Sound System). The simplified Chinese version of Turbo Linux 6.0 is installed on the notebook.

　　The author used the method of configuring the sound system provided by Turbo Linux 6.0 without success. Therefore, here we adopt the method of compiling sound support into the kernel. The steps are as follows:

　　start the computer, register with root, and after entering Linux, execute the command:

　　#cd/usr/src/linux (enter the Linux kernel source directory)

　　# startx (start X Window)

　　Start the virtual terminal (Chinese terminal) by clicking, and perform the following operations:

　　In the /usr/src/linux directory, execute the command: # make xconfig

　　, etc. After the kernel configuration menu screen appears, click Sound to enter the sound system configuration, find The following options:

　　y/m/n OSS sound modules

　　y/m/n Microsoft Sound System Support

　　In the y/m/n selection preceding the line, select Click y. Find the following lines and modify the preceding values ​​to match your computer's configuration.

　　530 MSS/WSS I/O base 530, 604, E80 or F40

　　5 MSS/WSS IRQ 7, 9, 10 or 11

　　1 MSS/WSS DMA 0, 1 or 3

　　-1 MSS/WSS secand DMA (if possible) 0,

　　The values ​​above 1 or 3 can be obtained by the following methods:

　　* Obtained from the random manual of the notebook computer, if you have not modified them, you can use the default values ​​(initial values).

　　*If the machine is installed with Windows operating system at the same time, it can be found from the system.

　　After the modification is completed, click the Main Menu button to return to the main menu, and then click Save and Exit and OK to end the kernel configuration.

　　Execute the following commands to build a new kernel:

　　# make dep# make clean (clear old files)

　　# make bzImage (build a compressed kernel image)

　　# cp /boot/vmlinuz /boot/

　　vmlinuz.old (back up old kernel files)

　　# cp ./arch/i386/boot/bzImage /boot/vmlinuz (copy the new kernel to the boot directory)

　　Modify the lilo configuration file with an editor:

　　# vi /etc/lilo.conf

　　Add the following lines to the file:

　　image=/ boot/vmlinuz.old (old kernel)

　　lable=old (label)

　　root=/dev/hdax (your system root disk name)

　　read-only

　　saves the modified file, exits vi and executes the command:

　　#/sbin/lilo (rebuild lilo)

　　# reboot (reboot the Linux system)

　　After the system starts , enter X Window to test whether the sound system is normal. If it is not normal, you should check whether the above steps are correct, especially whether the I/O port, DMA and IRQ settings are correct.

　　It should be pointed out here that although the manual states that it is compatible with the Sound Blaster Pro system, when configuring the kernel options, you cannot choose 100% Sound Blaster Pro, that is, you cannot choose a 100% Sound Blaster card compatible sound system, but MS Windows Sound system (MSS/WSS), otherwise, cannot succeed.