This might be fixed in the upstream 3.12-rc4 kernel, thanks to this committ:
author Takashi Iwai committer Takashi Iwai commit 4a4370442c996be0fd08234a167c8a127c2488bb tree 274101ba9518fd1f295f90e9db45ae64df8825cc parent dfc2cd7c284aa2dc88b5edbdd08645517a747d37 ALSA: hda - Fix GPIO for Acer Aspire 3830TG Acer Aspire 3830TG seems requiring GPIO bit 0 as the primary mute control. When a machine is booted after Windows 8, the GPIO pin is turned off and it results in the silent output. This patch adds the manual fixup of GPIO bit 0 for this model. Reported-by: Christopher Cc: stable Signed-off-by: Takashi Iwai A PPA of the 3.12-rc4 kernel can be found at http://kernel.ubuntu.com /~kernel-ppa/mainline/ and instructions on how to install and uninstall it are available at https://wiki.ubuntu.com/Kernel/MainlineBuilds -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1160737 Title: [Aspire 3830TG, Conexant CX20588, Speaker, Internal] No sound at all To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1160737/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
