View Full Version : [kubuntu] Sound on both sides, speakers and headphones

June 30th, 2010, 10:04 PM
Hello friends!

I have searched all they can about this topic in the forum and I think I've tried many of them ...

I have the latest drivers ALSA: 1.0.23

My laptop is an Acer Aspire 8943G Ethos

My Device (ALC670)

drekion @ drekion-laptop: ~ $ aplay-l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC670 Analog [ALC670 Analog]
Gadgets: 1 / 1
Gadget # 0: subdevice # 0
card 0: Intel [HDA Intel], device 1: ALC670 Digital [ALC670 Digital]
Gadgets: 1 / 1
Gadget # 0: subdevice # 0
Card 1: Generic [Generic HD-Audio], device 3: ATI HDMI [ATI HDMI]
Gadgets: 1 / 1
Gadget # 0: subdevice # 0
drekion @ drekion-laptop: ~ $

Following occurs:

The 5.1 works perfectly but when I connect the headphones several speakers are turned off and stays in 2.1 and is also heard in the headphones ...

I tried to edit / etc / modprobe.d / alsa-base.conf

and I have the following: "options snd-hda-intel model = auto"

Also I tried with "acer", "acer-aspire", "acer-aspire-8940g"

Any ideas?

The driver disk of Win7 says this "Realtek Audio Codec ALC669X"

Solution: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/656625

July 19th, 2010, 09:55 PM
i have exactly the same problem with kernel 2.6.34 (alsa drivers from kernel) on gentoo. did not find the solution yet either.

August 10th, 2010, 03:03 PM
I have the solution!

In model we will write this "lenovo-101e",

with this the headphones works fine and the speakers are turn off automatic

August 24th, 2010, 01:15 AM
I have also problems with my Acer Aspire 8943G ( no Ethos). It is only sound in left front and left rear speaker. No sound in headphone when jack is plugged in (but still sound in left speakers). I have not been able to get any reaction form the mic or mic-jack either. Have not tried the line-in jack.

Kernel is 2.6.32-24-generic #41-Ubuntu SMP Thu Aug 19 01:38:40 UTC 2010 x86_64 GNU/Linux.

aplay -l
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: HDA Generic [HDA Generic]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 1: Generic [HD-Audio Generic], device 3: ATI HDMI [ATI HDMI]
Subdevices: 0/1
Subdevice #0: subdevice #0

aplay -L
Playback/recording through the PulseAudio sound server
HDA Intel, HDA Generic
Front speakers
HDA Intel, HDA Generic
4.0 Surround output to Front and Rear speakers
HDA Intel, HDA Generic
4.1 Surround output to Front, Rear and Subwoofer speakers
HDA Intel, HDA Generic
5.0 Surround output to Front, Center and Rear speakers
HDA Intel, HDA Generic
5.1 Surround output to Front, Center, Rear and Subwoofer speakers
HDA Intel, HDA Generic
7.1 Surround output to Front, Center, Side, Rear and Woofer speakers
HD-Audio Generic, ATI HDMI
HDMI Audio Output

I have not tried to use the sound on the HDMI port.

Form dmesg
[ 11.514953] HDA Intel 0000:00:1b.0: PCI INT A -> GSI 22 (level, low) -> IRQ 22
[ 11.515019] HDA Intel 0000:00:1b.0: setting latency timer to 64
[ 11.671042] HDA Intel 0000:01:00.1: PCI INT B -> GSI 17 (level, low) -> IRQ 17
[ 11.671094] HDA Intel 0000:01:00.1: setting latency timer to 64
[ 14.444396] hda-intel: IRQ timing workaround is activated for card #1. Suggest a bigger bdl_pos_adj.
[ 4522.406817] hda-intel: IRQ timing workaround is activated for card #0. Suggest a bigger bdl_pos_adj.

When i open volume control. I only see left and right channels, no surround channels.

My windows 7 is overwritten and I am not able to see what what the name of the sound driver, but AlsaMixer v1.0.22 reporting Realtek ID 670 as the chip.

Is there anybody out there having an idea what to do. Have tried a lot of options in alsa-base.conf, also what suggested in this tread, but nothing seems to help.

August 24th, 2010, 01:50 AM
May be the solution:

At least i have sound in all speakers and headphones works.
Still I have to make the Mic's work, but it will an other day.

December 1st, 2010, 10:33 PM
The solution is here: