Linux ALSA patch for better sound support

Discussions about Linux installation and configuration on Samsung laptops
chris
Newbie
Newbie
Posts: 2
Joined: 10/05/2009, 17:12

Linux ALSA patch for better sound support

Postby chris » 10/05/2009, 17:13

The sound hardware in the NC10 does not work perfectly under Linux. Some recent distributions work better than others, but there are still some issues.

I made a patch to (almost) fully support the NC10 audio hardware:
http://users.skynet.be/chrisp/linux/sam ... linux.html

You might need a little bit of kernel configuration / compiling experience. Feedback is welcomed .
Last edited by chris on 10/05/2009, 17:16, edited 1 time in total.

User avatar
voRia
Administrator
Administrator
Posts: 1378
Joined: 12/02/2009, 18:08
Location: Italy
Contact:

RE: Linux ALSA patch for better sound support

Postby voRia » 10/05/2009, 17:24

Thank you!
I will test it as soon as I can! :)
Image
Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!

User avatar
voRia
Administrator
Administrator
Posts: 1378
Joined: 12/02/2009, 18:08
Location: Italy
Contact:

RE: Linux ALSA patch for better sound support

Postby voRia » 10/05/2009, 18:18

Just tried it against alsa-driver-1.0.20, it works great!
I'm uploading right now a new package on my repository, here is the changelog:

Code: Select all

alsa-driver (1.0.20~ppa1~nc10~jaunty) jaunty; urgency=low

  * Updated alsa sources to version 1.0.20.
  * Applied 'alsa20090509-add-nc10-support.patch' (thanks to Chris Pockelé)


Thank you again!
Image
Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!

chris
Newbie
Newbie
Posts: 2
Joined: 10/05/2009, 17:12

RE: Linux ALSA patch for better sound support

Postby chris » 11/05/2009, 21:32

That's nice.
I just updated the patch, according to comments from the ALSA maintainers (see alsa-devel maling list for details).
I don't think it's necessary to make a new package though. Biggest change is the names of the "Mic Boost" settings.

User avatar
voRia
Administrator
Administrator
Posts: 1378
Joined: 12/02/2009, 18:08
Location: Italy
Contact:

RE: Linux ALSA patch for better sound support

Postby voRia » 17/05/2009, 22:00

I've seen your patch has been merged in the official alsa development tree.
Thanks again for your awesome work!

The only problem (not regarding your patch in any way) is that at the moment there are no good solutions for using it on ubuntu jaunty. For me, any newer alsa driver than the 1.0.18 kills pulseaudio (0.9.14) after a while I'm listening to music or watching a video. And I can't get the newer pulseaudio to work as I want (well, I did not tried too hard, get bored of it before :P).
For anyone interested, this is the reason why on my repository the latest 'alsa-modules' is 1.0.18 yet. However, I'm providing alsa 1.0.20 packages from daily snapshots on my testing repository.

Just for curiosity, what distro and pulseaudio version are you using to get clean and stable sound on your NC10?
Last edited by voRia on 17/05/2009, 22:01, edited 1 time in total.
Image
Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!

nero23666
Newbie
Newbie
Posts: 9
Joined: 24/06/2009, 16:37

RE: Linux ALSA patch for better sound support

Postby nero23666 » 08/07/2009, 7:15

There was a sound lib update a few days ago. Now my sound doesnt work anymore. I found several sollutions for it but none of them worked for me (i have the n110). does anyone have on right way or has it to be tested with every single way in order to have one proper way.
i have alsa packages and pulse packages installed, so i dont really know what is used right now.
i would appreciate if anyne could help me.

zinaf
Newbie
Newbie
Posts: 14
Joined: 16/02/2009, 22:34

RE: Linux ALSA patch for better sound support

Postby zinaf » 11/07/2009, 18:36

I can confirm the what nero23666 posted. after the update there were some substantial changes. now skype does not work and the options are different. I have not played much around with it but from first attempt nothing seemed to work.
:(
'nero23666' pid='1579' dateline='1247033754' wrote:There was a sound lib update a few days ago. Now my sound doesnt work anymore. I found several sollutions for it but none of them worked for me (i have the n110). does anyone have on right way or has it to be tested with every single way in order to have one proper way.
i have alsa packages and pulse packages installed, so i dont really know what is used right now.
i would appreciate if anyne could help me.

User avatar
voRia
Administrator
Administrator
Posts: 1378
Joined: 12/02/2009, 18:08
Location: Italy
Contact:

RE: Linux ALSA patch for better sound support

Postby voRia » 12/07/2009, 23:43

Are you using kernel 2.6.30 from my repository?
It' causing a lot of problems lately, sometimes I get kernel panics with it (mostly during shutdown process), and I'm considering to remove it definitely from the repository.

At the moment I'm using the latest kernel from karmic repository (2.6.31-2), taken directly from here. It already contains newer alsa modules (so, no need to install any extra 'alsa-modules' package to get full support for NC10's sound card) and a newer 'ath5k' module with rfkill support already in (so, no need to install 'linux-backports-modules' anymore). Also, it's far more stable than the 2.6.30* from my repository (I'm testing it for some days now, no problems at all until now). Give it a shot.

Please note that it ships with KMS enabled by default, causing problems with screen backlight control.
You can disable it by creating a new .conf file in /etc/modprobe.d/ (for example, '/etc/modprobe.d/kms.conf') containing this line:

Code: Select all

options i915 modeset=0

or, alternatively, by adding the option 'nomodeset' to the kernel command line.

Let me know if the new kernel solves your problem.

PS: The webcam support is broken yet, even in this new kernel.
Last edited by voRia on 13/07/2009, 21:36, edited 1 time in total.
Image
Please consider a little donation to keep the 'Linux On My Samsung' project up and running. Thank you!


Return to “Linux On My Samsung”

Who is online

Users browsing this forum: Bing [Bot] and 3 guests