[2545A25, Conexant CX20582 (Pebble), Speaker, Internal] No sound at all through speakers on Lenovo Edge 11
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
alsa-driver (Ubuntu) |
Expired
|
Undecided
|
Unassigned |
Bug Description
Sound through speakers of my Lenovo Edge 11 laptop doesn't work in Ubuntu 14.04 nor 12.04 nor 15.10 (LiveCD); I think it last worked in 10.04 or maybe even only in 8.04.
This was tested on a clean installation of 14.04 (64bit) onto a USB stick, with all upgrades; but it neither works in my normal installation (14.04 32bit) which was upgraded over the years. I also tried it on a LiveCD boot of 15.10 (64bit), and speakers don't work there either.
The hardware appears to be fine though, because after booting, I sometimes hear the short "drum roll" when the login screen comes up, but no sound afterwards.
Headphones work fine; microphone appears to work fine as well (at least the input level in Gnome mixer shows that it gets input).
I had already started to debug the speaker problem some months ago and it looked like a problem with power saving mode for the sound chip. If you have any hints how to debug this for real, I'm open for suggestions. Also, is there any more info I can provide?
ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: alsa-base 1.0.25+
ProcVersionSign
Uname: Linux 3.13.0-71-generic x86_64
ApportVersion: 2.14.1-0ubuntu3.19
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/pcmC0D0c: oliver 1650 F...m pulseaudio
CurrentDesktop: Unity
Date: Sun Dec 13 22:42:48 2015
InstallationDate: Installed on 2015-12-13 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417)
PackageArchitec
SourcePackage: alsa-driver
Symptom: audio
Symptom_
Symptom_Card: Built-in Audio - HDA ATI SB
Symptom_
USER PID ACCESS COMMAND
/dev/snd/
/dev/snd/
/dev/snd/pcmC0D0c: oliver 1650 F...m pulseaudio
Symptom_Jack: Speaker, Internal
Symptom_Type: No sound at all
Title: [2545A25, Conexant CX20582 (Pebble), Speaker, Internal] No sound at all
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 01/10/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 87ET35WW (1.09 )
dmi.board.name: 2545A25
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.
dmi.modalias: dmi:bvnLENOVO:
dmi.product.name: 2545A25
dmi.product.
dmi.sys.vendor: LENOVO
you have to file upstream report if it is a regression
https:/ /git.kernel. org/cgit/ linux/kernel/ git/tiwai/ sound.git/ commit/ sound/pci/ hda?id= 6027277e77df2d2 893d906c42f5c9f 9abcb731e0