Solution (ACL269 Sound Card): Upgrade alsa to version 1.0.23. Note: (1) Compile alsa dependent package: ncurses-devgettextxmltolibasound2-devlinux-headerslibncursesw5-dev (2) package to be compiled: alsa-driver-1.0.23alsa-lib-1.0.
Solution for disworking headphones in Ubuntu 10.04 (ACL269 sound card)
Purpose:
Upgrade alsa to version 1.0.23.
Note:
(1) Compile the packages on which alsa depends:
Ncurses-dev gettext xmlto libasound2-dev linux-headers libncursesw5-dev
(2) packages to be compiled:
Alsa-driver-1.0.23
Alsa-lib-1.0.23
Alsa-utils-1.0.23
(3) Stop alsa before compilation.
Sudo/sbin/alsa-utils stop
(4) run the program after compilation and installation:
Sudo alsaconf
(5) If you need to switch between the external speaker and headphones, you also need to add in/etc/modprobe. d/alsa-base.conf:
Options snd-hda-intel model = auto