node 0x17 is the analog mixer silmilar to ac97 analog mixer
you lost the mic playback volume controls and 12 dB gain of hardware
PCM playback volume
@Raymond
Thank you very much for the clarification.
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I've updated the driver for both Ubuntu 12.04 and 12.10. There is no
click noise anymore.
** Patch added: patch for Ubuntu 12.10 - Quantal Quetzal (updated)
https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/886975/+attachment/3446519/+files/lenovo_conexant.patch
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** Package changed: linux (Ubuntu) = alsa-driver (Ubuntu)
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Title:
Lenovo sound chip Conexant CX20549 Venice doesn't work correctly.
To manage
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v3.7 kernel[0] (Not a kernel in the daily directory) and install both
the linux-image and linux-image-extra .deb packages.
If this bug is fixed in the
I really appreciate your working on this.
Unfortunately the computer with the problem is owned by a friend in another
town.
I don't often see him and certainly don't want to upset his stability. If
no one else can
do this then I would consider driving to him and trying the fix. I was
just
I've also noted it uses directly a node 0x19 (Audio Output Analog)
instead of a node 0x17 (Audio Mixer), but I don't know if it's necessary
and has to do with sound quality. I guess that sound going through the
node 0x17 is hardware mixed and through the 0x19 is post-mixed by a
software driver. As
patch for Ubuntu 12.10 - Quantal Quetzal Edit (6.0 KiB, t
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Title:
Lenovo sound chip Conexant CX20549 Venice doesn't work correctly.
To manage
refer to your patch
can r61i use dock station or port replicator?
there is mic at sep (dock mic) but no dock line out in the codec info
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Title:
if the driver implement auto mic selection. those mic capture switch is
meaningless
Node 0x1a [Audio Input] wcaps 0x100d0b: Stereo Amp-In R/L
Control: name=Dock Mic Capture Volume, index=0, device=0
ControlAmp: chs=3, dir=In, idx=2, ofs=0
Control: name=Dock Mic Capture Switch, index=0,
** Changed in: alsa-driver (Ubuntu)
Status: Incomplete = Confirmed
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Title:
Lenovo sound chip Conexant CX20549 Venice doesn't work
I've updated the driver for Ubuntu 12.04 Lucid too. I don't have that
version so would anybody test it? Download from here:
https://launchpad.net/~c4pp4/+archive/test/+files/lenovo-conexant-
dkms_12.11.28.1_all.deb
and of course you have to remove all the previous workarounds for crackling
I'm testing a new version of the driver, now there is no workaround
needed to eliminate the crackling sound. If you wanna help me and give
me a feedback please use the package for Ubuntu 12.10 Quantal from here:
https://launchpad.net/~c4pp4/+archive/test/+files/lenovo-conexant-
I've updated the driver, now it supports the Ubuntu 12.10 - Quantal Quetzal.
https://launchpad.net/~c4pp4/+archive/ppa
Crackling (popping) sound issues still remain so please follow the
instructions in the post #40 (issue when rebooting the computer), the
post #41 (issue when on battery power)
According to this post https://lists.launchpad.net/ubuntu-audio-
dev/msg00290.html the script eliminating crackling sound when suspending
the computer is considered as obsolete. I don't think so. I'm attaching
the script file here.
- save the script to your home folder
- copy the script to the
- crackling (popping) sound when idle - workaround:
sudo touch /etc/pm/power.d/intel-audio-powersave
- to remove the workaround
sudo rm /etc/pm/power.d/intel-audio-powersave
- the command creates an empty file and overrides (disables) the script
/usr/lib/pm-utils/power.d/intel-audio-powersave
Anyone have a clue when a fix might make it into an update or a
release? My friend doesn't want to do a patch but prefers to wait for
an official fix.
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Please read carefully!
I've changed the way of providing the sound driver. Now I'm using the
DKMS framework so there is no need to wait for my updates. Your system
will be always updated with the correct sound driver.
I've created a package called 'lenovo-conexant-dkms'. It's a repack of
the
Patched Linux Kernel Ubuntu 12.04 LTS - Precise Pangolin:
https://launchpad.net/~c4pp4/+archive/ppa
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Title:
Lenovo sound chip Conexant CX20549
Just a note to my last paragraph: It's necessary to uninstall the alsa-
hda-dkms package after updating to my ppa kernel version.
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Title:
Lenovo
@Brad Figg
Thank you. The alsa-hda-dkms package has the same behavior as I
previously (#35) wrote about Precise version. Microphone OK, headphones
OK, volume slider with unamplified part BAD (there is still sound
muted).
I've also noted it uses directly a node 0x19 (Audio Output Analog)
instead
I've been informed that it is unlikely the patch will be accepted
upstream due to use of an old model. Can people affected by this issue
take a look at: https://wiki.ubuntu.com/Audio/UpgradingAlsa/DKMS and see
if that dkms package will address this issue for them?
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I've tried the latest daily live of Precise and headphones works. So
there is only (probably) problem with sound muted between 0 and
unapmlified part of volume slider now.
Anyway I've updated oneiric ppa.
Jan-Pieter Jacobs (jpjacobs) wrote on 2011-12-17: #32
Hi, I also had the same problem.
@ Eugene Savelov
Thanks. There are trying to use a new way of autoconfig and it seems it's not
ok yet.
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Title:
Lenovo sound chip Conexant
@ Brad Figg
1. Yes, I've tested it and it's resolving my issue.
2. No.
Thanks.
** Changed in: linux (Ubuntu)
Status: Incomplete = Confirmed
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Hi, I also had the same problem. I can confirm that the 3.0.0.14-generic
kernel fixes (more or less) the microphone problem. Testing with skype,
the sound was a bit crackly.
Another thing to notice is that apparently the volume does not scale
linearly as would be expected when upping/downing the
Summary:
Stable kernel 3.0.0-14 is BAD (still issue #2 and regression with
headphones)
Brad Figg kernel 3.0.0-15 is OK
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Title:
Lenovo sound
I also confirm that with Brag Figg's 3.0.0-15 kernel headphones work
correctly, and microphone issue is resolved
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Title:
Lenovo sound chip
yes I confirm on Lenovo R61i internal microphone is working with
3.0.0-14-generic kernel. previously I had to use the modified kernel
from this bugreport. But as a side note, I noticed that output from
earphones connected to the audio-out connector are not working with
this kernel
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You
@c4pp4,
1. I have put up test kernels at: http://people.canonical.com/~bradf/lp886975/
These are the latest Oneiric kernel plus your patch. Please test and make
sure
they resolve your issue.
2. Have you tried to submit your patch upstream to get it into the main
kernel tree?
**
I've just upgraded the official oneiric kernel from 3.0.0-13 to 3.0.0-14 and
found out that there is a change causing the microphone working finally
correctly.
I've searched what happened and here is a possible answer:
Patched Linux Kernel Ubuntu 11.10 - Oneiric Ocelot:
https://launchpad.net/~c4pp4/+archive/ppa
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Title:
Lenovo sound chip Conexant CX20549 Venice
** Description changed:
Computer: IBM Lenovo Thinkpad R61i
Card: HDA Intel
Sound chip: Conexant CX20549 (Venice)
Device: 00:1b.0 Audio device [0403]: Intel Corporation 82801H (ICH8 Family)
HD Audio Controller [8086:284b] (rev 03)
Subsystem: Lenovo ThinkPad T61 [17aa:20ac]
System:
@c4pp4
Is this a new issue, or do you happen to know if this issue existed in
prior releases?
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Title:
Lenovo sound chip Conexant CX20549 Venice
@ Joseph Salisbury
The issue #1 (microphone) is known from the time when this computer
model comes to market in 2008, the patch I made is from 3/2009. The
issue #2 (about unamplified part) is a new from Oneiric but the patch is
solving it in its old state, so I have reported the new bug and
** Summary changed:
- Lenovo Conexant CX20549 Venice doesn't work correctly.
+ Lenovo sound chip Conexant CX20549 Venice doesn't work correctly.
** Description changed:
Computer: IBM Lenovo Thinkpad R61i
Card: HDA Intel
- Chip: Conexant CX20549 (Venice)
+ Sound chip: Conexant CX20549
** Tags added: patch
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Title:
Lenovo sound chip Conexant CX20549 Venice doesn't work correctly.
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