Device Driver Manager Debian Xfce

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MX Linux is a cooperative venture between the antiX and former MEPIS Linux communities (hence the name MX). One can expect the best of both worlds is put into MX Linux. MX Linux is a mid-weight operating system having Xfce as the desktop environment. The latest release MX Linux 17 has been released on Friday 15h December 17, 2017.

Sound playback, recording, and mixing in Debian is generally by provided by ALSA and a sound server. These sound-related services can, for the most part, be run in parallel without conflicts, and interconnected.

For a list of sound applications, see MultimediaDownload total conquest offline mod.

  • ALSA - Advanced Linux Sound Architecture is a part of the Linux kernel that provides a low-level interface (API) for sound card device drivers.

  • PulseAudio - Provides a more advanced application interface and can glue ALSA, jackd, phonon together

  • JACK - professional sound server that provides real-time, low-latency connections for audio and MIDI between applications

  • phonon - KDE's sound server

  • BluetoothUser - how to setup Bluetooth audio devices

  • MIDI - communication protocol to connect electronic musical instruments, computers, and audio devices

  • SoundFormats - information about various audio file formats/codecs

  • OSS (Legacy) - used to be the default sound subsystem before Linux 2.4

Troubleshooting

No sound: go through these steps while audio is playing in an application (music player, web browser..):

  • Check proper connection of the output jack
  • Check that your amplifier/speakers are powered on and working

  • Check that the audio playback program is unmuted/volume is raised, from inside the application, and in the system audio mixer (eg. PulseAudio volume control or alsamixer.

  • Check that your soundcard is visible, enabled, and is selected as default in the Configuration tab of the audio mixer Smith wesson 5906 serial number date of manufacture.

  • Disable any other output devices like HDMI, only enable the desired output

  • Check that your soundcard is detected by ALSA: aplay -l

    • Check that a driver/module is loaded for your sound card using lspci -knn

    • If not, identify your soundcard's PCI ID ([XXXX:XXXX]) and paste the ID here to determine if a driver is available in Debian.

    • Check if your soundcard requires an additional Firmware.

  • Check whether you can play sound as Root/add your user to the audiogroup

Firmware

Wiki pages

A list of all pages related to Sound playback and recording:

Portal refactoring/merging in progress below this point

CategorySound

Translation(s) : English - Français - Italiano

This page aims to give a rough overview of the various subsystems used in linux to manage devices. It will hopefully give you enough of the big picture to better understand the man pages and documentation for the specific subsystems. It won't tell you how to create devices or have scripts run when new devices are added.

There is a hierarchy to the various systems. It looks something like this:

  • Kernel & Modules

    • sysfs
    • hotplug
      • udev
      • hal
    • /dev

Kernel

Kernel and kernel modules drive the devices.

-sysfs

Sysfs is a virtual file system provided by the 2.6 Linux kernel. Sysfs exports information about devices and drivers from the kernel device model to userspace, and is also used for configuration.
See http://en.wikipedia.org/wiki/Sysfs

Udev and hal use sysfs to do their work.

--hotplug

The kernel calls the /sbin/hotplug script when it sees new hardware passing several arguments. The scripts load kernel modules and user scripts when new hardware is seen.

---udev

New with the 2.6 kernel, udev automates the creation and removal of devices in /dev. udev replaces the devfs of the 2.4 kernel.

From the udev man page. As part of the hotplug subsystem, udev is executed if a kernel device is added or removed from the system. On device creation, udev reads the sysfs directory of the given device to collect device attributes. These attributes may be used as keys to determine a unique name for the device.

---hal

From the /usr/share/doc/hal/NEWS.gz.

HAL is a hardware abstraction layer and aims to provide a live list of devices present in the system at any point in time. HAL tries to understand both physical devices (such as PCI, USB) and the device classes (such as input, net and block) physical devices have, and allows merging of information from so called device info files specific to a device.

HAL provides a network API through D-BUS for querying devices and notifying when things change. Finally, HAL provides some monitoring (in an unintrusive way) of devices; presently ethernet link detection and volume mounts are monitored.

This, and more, is all described in the HAL specification.

-/dev

Entries in /dev give access to the devices the kernel drives. Entries here can be made by hand using command line utilities, or by an automated utility such as DevFS or udev.

CategoryHardware