No sound - seeking ideas
Hi all:
I've newly bought a laptop (details at end) & installed Jessie 8.2.
All's well except that I have no sound. I've done quite a lot of online
research but got nowhere. I'm looking for ANY other practical ideas,
please.
What I've done:
1. Checked alsamixer & pavucontrol - I can't find anything muted.
alsamixer shows 'Speakers' as muted at the start of each session.
Increasing the volume on 'Speakers' (third from left) makes no
difference.
The only sound I have achieved at all is when (using alsamixer) I raise
the levels of 'Mic Boost' high, when I get 'white noise'. This,
however, suggests to me that the speakers are functional.
I even tried these:
'The Steve Litt Diagnostic Tools' from
http://www.troubleshooters.com/linux/sound/downloads/
unmute_all.sh just hangs after printing its headphones warning.
2. Checked drivers / kernel modules. These seem to me to be a. correct
& b. working. pavumeter shows appropriately fluctuating signal levels
when I play a track through aplay or through vlc.
3. Torn my hair / crossed my fingers / lost sleep / read a lot - much
of it outdated (I wish people would date online troubleshooting guides
etc BEFORE, near the end, it suggests I add (e.g.) etch-backports to
sources.list).
I've provided all the relevant information I can think of below - of
course I'd be happy to provide anything else that would help.
If anyone has any ideas, please let me know :) I follow the
linux.debian.user usenet group on pan regularly, but do not otherwise
receive e-mails. You're welcome to e-mail me with any suggestions.
Regards
Daud2
=======================================================================================
All the Hardware/Driver/System Info I can think of:
=======================================================================================
daud@debian:~$ cat /etc/debian_version
8.2
daud@debian:~$ uname -a
Linux debian 3.16.0-4-amd64 #1 SMP Debian 3.16.7-ckt17-1 (2015-09-26)
x86_64 GNU/Linux
daud@debian:~$ gnome-session --version
gnome-session 3.14.0
daud@debian:~$ pulseaudio --version
pulseaudio 5.0
daud@debian:~$ cat /proc/cpuinfo | grep 'model name'
model name : Intel Core i7-6700HQ CPU @ 2.60GHz
daud@debian:~$ lspci -nnk |grep udio
00:1f.3 Audio device [0403]: Intel Corporation Sunrise Point-H HD Audio
[8086:a170] (rev 31)
daud@debian:~$ cat /proc/asound/cards
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0xdf420000 irq 145
daud@debian:~$ aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: PCH [HDA Intel PCH], device 0: ALC269VC Analog [ALC269VC Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 0: PCH [HDA Intel PCH], device 3: HDMI 0 [HDMI 0]
Subdevices: 1/1
Subdevice #0: subdevice #0
daud@debian:~$ cat /proc/asound/modules
0 snd_hda_intel
daud@debian:~$ cat /proc/asound/version
Advanced Linux Sound Architecture Driver Version k3.16.0-4-amd64
daud@debian:~$ lsmod | grep snd
snd_hda_codec_hdmi 45118 1
snd_hda_codec_realtek 67127 1
snd_hda_codec_generic 63181 1 snd_hda_codec_realtek
snd_hda_intel 26327 6
snd_hda_controller 26646 1 snd_hda_intel
snd_hda_codec 104500 5
snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel,snd_hda_controller
snd_hwdep 13148 1 snd_hda_codec
snd_pcm 88662 4
snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_controller
snd_timer 26614 1 snd_pcm
snd 65244 20
snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
soundcore 13026 2 snd,snd_hda_codec
daud@debian:~$ aplay "/home/daud/test.mp3"
Playing raw data '/home/daud/Downloads/test.mp3' : Unsigned 8 bit, Rate
8000 Hz, Mono
daud@debian:~$ aplay "/home/daud/ReminderFox.wav"
Playing WAVE '/home/daud/FilesToSave/ReminderFox.wav' : Signed 16 bit
Little Endian, Rate 16000 Hz, Mono
HARDWARE (Manufacturer's List) ( www.pcspecialist.co.uk )
Chassis & Display Cosmos Series: 17.3" Matte Full HD LED Widescreen
(1920x1080)
Processor (CPU) Intel Core™ i7 Quad Core Processor 6700HQ (2.6GHz,
3.5GHz Turbo)
Memory (RAM) 8GB Kingston SODIMM DDR3 1600MHz (1 x 8GB)
Graphics Card NVIDIA GeForce GTX 950M - 2.0GB DDR3 Video RAM - DirectX®
12
Memory - Hard Disk 1TB WD BLUE 2.5" WD10JPVX, SATA 6 Gb/s, 8MB CACHE
(5400 rpm)
mSATA/M.2 SSD Drive 128GB M.2 2280, SATA 6Gb/s (510MB/R, 310MB/W)
DVD/BLU-RAY Drive 8x SATA DVD±R/RW/Dual Layer (+ 24x CD-RW)
Memory Card Reader Internal 9 in 1 Card Reader (MMC/RSMMC/SD: Mini, XC &
HC/MS: Pro & Duo)
Sound Card Via 2 Channel High Definition Audio + MIC/Headphone Jack
Bluetooth & Wireless GIGABIT LAN & WIRELESS INTEL N-7265 M.2 (300Mbps,
802.11BGN) + BLUETOOTH
USB Options 3 x USB 3.0 PORTS + 1 x USB 2.0 PORT AS STANDARD
Audio Chipset Via™ High Definition Audio Channels 2 channel HD
Audio Connections Microphone-in and headphone-out Speakers
Built in two speakers Integrated Microphone Yes
Reply to: