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  1. Jan 24, 2010
  3. Jan 23, 2010
  5. Dec 26, 2009
  7. Dec 22, 2009
  9. Dec 09, 2009
  11. Dec 08, 2009
    • Justin P. Mattock's avatar
      ALSA: hda - iMac 9,1 sound patch. · 4b7e1803
      Justin P. Mattock authored 
      This is an updated patch for the Apple iMac 9,1 model to add sound.
Original patch posted here:
http://article.gmane.org/gmane.linux.alsa.devel/61361/match=



I have been using this patch for a while now
and have to say it works vary well, except for a few minor 
things:

	With the iMac 24-inch 3.06GHz Intel Core 2 Duo
	everything seems to be working as it should,
        although I have not looked into the microphone
	(never really use one, nor have any apps to test,
	my guess is it doesn't work, or I never figured out how
	to get it to work).

	With the iMac 24-inch 2.66GHz Intel Core 2 Duo
	everything is the same as with the above machine 
	except I'm hearing a light scratchy/distortion noise
	come out of the speakers when using headphones(above machine
	does not do this).

Other than that the sound level is great(especially with good Dj headphones).

Signed-off-by: default avatarJustin P. Mattock <justinmattock@gmail.com>
Tested-by: default avatarJustin P. Mattock <justinmattock@gmail.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      4b7e1803
  13. Nov 18, 2009
  15. Nov 16, 2009
  17. Nov 05, 2009
  19. Nov 02, 2009
  21. Nov 01, 2009
    • Stas Sergeev's avatar
      ALSA: snd-pcsp: add nopcm mode · bcc2c6b7
      Stas Sergeev authored 
      
Currently, if the high-res timers are unavailable, snd-pcsp does not
initialize. People who choose it over pcspkr, loose their console beeps
in that case and get annoyed.
With this patch, the console beeps remain regardless of the high-res
timers. Additionally, the "nopcm" modparam is added to forcibly
disable the PCM capabilities of the driver.

Signed-off-by: default avatarStas Sergeev <stsp@aknet.ru>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      bcc2c6b7
  23. Oct 13, 2009
  25. Oct 05, 2009
  27. Sep 30, 2009
  29. Sep 29, 2009
  31. Sep 21, 2009
  33. Sep 07, 2009
    • Takashi Iwai's avatar
      ALSA: dummy - Fake buffer allocations · a68c4d11
      Takashi Iwai authored 
      
Instead of allocating the real buffers, use a fake buffer and ignore
read/write in the dummy driver so that we can save the resources.
For mmap, a single page (unique to the direction, though) is reused
to all buffers.

When the app requires to read/write the real buffers, pass fake_buffer=0
module option at loading time.  This will get back to the old behavior.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      a68c4d11
  35. Sep 06, 2009
  37. Sep 03, 2009
  39. Sep 01, 2009
  41. Aug 27, 2009
    • Takashi Iwai's avatar
      ALSA: Add debug module option · 36ce99c1
      Takashi Iwai authored 
      
Add debug module option to snd core.
This controls the debug print level.  When CONFIG_SND_DEBUG_VERBOSE
is set, you can suppress the debug messages by giving or changing this
parameter to a lower value.  debug=0 means no debug messsages.
As default, it's set to the verbose level 2.

Since this option can be changed dynamically via sysfs file, you can
suppress the verbose debug messages on the fly, which wasn't possible
before.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      36ce99c1
  43. Aug 25, 2009
  45. Jul 28, 2009
  47. Jul 23, 2009
  49. Jul 06, 2009
  51. Jun 30, 2009
  53. Jun 24, 2009
  55. Jun 21, 2009
  57. Jun 12, 2009
  59. Jun 11, 2009
  61. Jun 08, 2009
  63. Jun 05, 2009
  65. Jun 02, 2009
    • Hector Martin's avatar
      ALSA: hda - Acer Aspire 8930G support · 3b315d70
      Hector Martin authored 
      
Short story: this laptop has 5.1 built-in speakers which you *really*
want to use (the not-so-"sub" woofer is what makes the audio above
average for a laptop), so 6-channel support is important (plus a decent
asound.conf to upmix stereo). It also has the 3 typical jacks that ought
to have a selectable mode. And it's based on ALC889, which sucks.

Rationale/explanations:

The const_channel_count stuff was added because, for a laptop like this,
you always have 6 channels available (internal speakers) but still need
to set the mode for the 3 external jacks. Therefore, the device always
needs to be in 6-channel mode but there still needs to be a mixer
control for the jack mode. You could use line/mic-in at the same time as
the 6 internal speakers, for example. You might be tempted to make it
even smarter by dynamically switching the max channel count when
headphones are plugged in (therefore muting the internal speakers and
reducing the physical channel count to the jack channel mode), but as a
user I consider this to be harmful because I want the audio to blow up
to 6 channels / upmixed as soon as I unplug the headphones, and having
opened the device while in 2-channel mode would prevent this from
working (and always making 6-channel mode available doesn't do any harm).

The hardware needs EAPD turned on and the DACs routed to the internal
speaker pins, so the patch adds those verbs.

The ALC889 CLFE and subsequent (side/aux, here unused) DACs do NOT work
by default, at least here. I wasted much time trying to talk to
Realtek/pshou about this, but they just kept sending me useless updates
to patch_realtek.c that did nothing relevant. In the end I gave up and
brute forced the issue by trying to flip every bit in the proprietary
coefficient registers, and eventually found the two magic registers that
need to be cleared to enable all DACs. I have only heard Acer users
complain, but that might be because ALC889 is pretty new and using 5.1
(and noticing the missing center/lfe channels) might not be that common.
If this is a generalized issue with all ALC889 systems then those verbs
should probably be moved to a common verb array.

The internal mic is untested and probably doesn't work.

These settings will probably work for other Acer Gemstone laptops with
the same 5.1 speaker config. When identified, those should be added to
the PCI subsystem ID list.

Signed-off-by: default avatarHector Martin <hector@marcansoft.com>
Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      3b315d70
  67. May 27, 2009
    • Takashi Iwai's avatar
      ALSA: Enable PCM hw_ptr_jiffies check only in xrun_debug mode · c87d9732
      Takashi Iwai authored 
      
The PCM hw_ptr jiffies check results sometimes in problems when a
hardware doesn't give smooth hw_ptr updates.  So far, au88x0 and some
other drivers appear not working due to this strict check.
However, this check is a nice debug tool, and the capability should be
still kept.

Hence, we disable this check now as default unless the user enables it
by setting the xrun_debug mode to the specific stream via a proc file.

Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
      c87d9732
  69. May 25, 2009
  71. May 24, 2009