reinstall sound driver

I believe that the operation of the Win7 flagship 64-bit system download the friend must be a few? Although the WIN8 system has gradually become perfect, but we still reluctant to give up the experience is a good Win7 flagship version. But do you have some difficult problems to solve when you operate Win7 flagship computer? If so, let's write it down and tell the little one that we can all discuss the solution together. This is not, small weave today received a friend message, said is his own Wi

Originally in 2.6, the kernel was equipped with ALSA sound card driver, and there was sound when the system was installed. The driver was 1.0.11. Sound is there, but the built-in speakers come out, the external will not sound, dep

Many people in the use of computers, may be due to improper operation of the sound card driver uninstall, but the sound card driver installation is a difficult problem. Today, small knitting to share win7 sound card driver how to

Originally in 2.6 in the kernel is with ALSA sound card driver, loading system is also a sound, drive is 1.0.11. Sound is there, but the built-in speakers out of the outside, the outside is not a sound, depressed. Look at the Internet, it is said to update the

If we use the Win7 64-bit flagship system computer to play without sound, volume adjustment and stereo are good to do. The following is a small compilation of system city to teach you how to solve this problem. The reason for this is that the sound card driver is installed incorrectly. Because the sound card used to h

How to Set an update Sound Card Driver, Update with driver genie I use Windows 7. The sound card driver comes from the main board. Some drivers only need to be installed, and some need to be typed in two. The methods are similar. Download the

First we need to load a driver life software, this through Baidu, Google search for a very many green download address, we now start to start the software until the installation is finished to focus on the demonstration, to everyone intuitive learning, reference. Let's start the driver life software, we first see the drive life of our hardware detection, and its own drive library update (Figure 1).

The first step: Open Device Manager, check the sound, video and game controller, there is no yellow exclamation mark. Open method: Right-click My computer → properties → hardware → device Manager. The second step: if there is a yellow exclamation mark, you have a problem with the sound card, and then you go to uninstall, first click the "Computer" right button to find management Then find the Device M

The first step, you can do a simple check. For example, audio power, wiring is normal, chassis front or rear interface is normal. If everything is OK, you can proceed to the next step. In the second step, open Device Manager and view the sound, video, and game controllers directory. Typically, you will find that the device is not displaying properly. As shown below, Realtek high Definition audio Normal, but the ATI HDMI Audio column is marked with a

one important concept in ASOC: Kcontrol, unfamiliar readers need to browse through my previous article: Linux ALSA sound card driver Four: control device creation. Typically, a kcontrol represents a mixer (mixer), or a MUX (multi-channel switch), or a volume controller, and so on. As we know from the above article, defining a kcontrol is primarily about defining a snd_kcontrol_new structure, which, for the

Section 8 Chapters make the Development Board sound, buzzer driveExperienceCreate a makefile file under the directoryRun the make clean command to make sure that you compile some of the generated project files, execute the Make command, and recompile the driver. Copy the compiled generated Buzzer.ko kernel image file, adb push buzzer.ko/fpga/moudlesThen insert the kernel image file into the system, Insmod B

Numid = 9, iface = mixer, name = 'sound processing filter' ; Type = enumerated, access = RW ------, values = 1, items = 4 ; Item #0 'Flat' ; Item #1 'minimum1' ; Item #2 'minimum2' ; Item #3 'maximum' : Values = 0 L sound card test ** Playback [Root @ embedsky/mnt] # aplay sound_check.wav Playing wave 'sound_check.wav ': signed 16 Bit little endian, rate 44100Hz, stereo ** Recording Playback command Areco

The first step: Open Device Manager, check the sound, video and game controller, there is no yellow exclamation mark. Open method: Right-click My computer → properties → hardware → device Manager. The second step: if there is a yellow exclamation mark, your sound card has a problem, and then you go to uninstall, first click the "Computer" right button to find management. Then locate the Dev

The eighth chapter introduces the experiment: Buzzer driver, let the development board make sound.This paper introduces the principle of buzzer and realizes a complete buzzer driver, which can control the opening and closing of buzzer.The buzzer is also called PWM pulse width modulation, the basic principle is to control the buzzer by the pulse to open and stop. A buzzer is a hardware device on a developmen

In this section we mainly study buzzer driver, buzzer is also called PWM pulse width modulation, the basic principle is to control the buzzer by pulse to open and stop. A buzzer is a hardware device on a development Board that can control the sound emitted by a buzzer by writing a specific value to the register. This section describes the principle of buzzer implementation and implements a complete buzzer

Just started to install server2012, the drive has not been installed to think is the driver of the problem, later on the internet to find a bit to understand why, because the server does not turn on the Wireless LAN function, and sound card services, the following simple way to introduce the solution to you:Wireless network card resolution method:The first step, go to "Server Manager"--〉 "Add roles and feat

reference counter. The Unload function is blocked, and the behavior is that a rmmod command will stop there and never return to the operating prompt of the system, and the workaround is to replace the original unload function with an empty unload function. In the third section, the driving principle of buzzer is to control the opening and stopping of buzzer by pulse, which is called PWM.This chapter is a buzzer driver, the buzzer

Through the study of this chapter I learned the following knowledge:First, the knowledge of buzzer: Buzzer is also known as PWM (pulse width modulation), the basic principle is to control the buzzer by pulse to open and close, the output pin of the timer and the transistor of the buzzer connected, this circuit transistor is PNP, when the pin is high, the transistor is in saturation, circuit conduction, Current flow through the buzzer, at this time the buzzer audible, conversely, when the pin is

Article Title: Experience in installing the Alsa sound card driver in Linux. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. I. Linux kernel source (the core source code of the system) Enter ls-a/usr/src/linux on the terminal or console to check whether there are any suc

1. Control the buzzer sound by writing a specific value to the register.2, in the encounter can not uninstall the Linux driver by directly modifying the linux drive corresponding memory address to remove the Linux Drive to avoid restarting the machine trouble. 3, through different source code files to store different function codes to facilitate the classification and management of code.4, Main.c is The ma