Messages in this thread | | | Date | Fri, 13 Jan 2012 13:44:03 -0600 (CST) | From | Joseph Parmelee <> | Subject | Sound broken in 3.2.0 and 3.2.1 |
| |
Hello:
I have built standard kernels 3.2.0 and 3.2.1 and their respective modules. Both exhibit no sound with the following sound modules installed:
snd_pcm_oss snd_mixer_oss snd_hda_codec_realtek snd_hda_intel snd_hda_codec snd_pcm snd_timer snd soundcore snd_page_alloc
Kernels 3.1.8 works as expected with the same set of modules (for 3.1.8) installed.
What appears to be happening is that the available controls are not being properly elucidated in 3.2.x. For example both aumix and gamix show that the PCM control is missing; it appears normally in 3.1.x using the same set of driver modules. This is causing the immediate problem as this control is set to zero on bootup and cannot be accessed thereafter. Sound appears to play normally through the alsa driver in mplayer for example, and the internal mplayer volume control appears to work normally, but there is no sound.
The controls elucidated differ as follows (taken from gamix) for the same hardware (intel hda with realtek alc662 codec):
3.1.x:
1 - PCM 2 - Headphone 3 - Rear Mic 4 - Front Mic 5 - Line 6 - Auto-mute Mode 7 - Capture 8 - Capture 1 9 - Input Source 10 - Input Source 1 11 - IEC958 12 - Master
3.2.x:
1 - Master 2 - Channel Mode 3 - Front 4 - Surround 5 - Center 6 - LFE 7 - Headphone 8 - Rear Mic 9 - Line 10 - Auto-mute Mode 11 - Capture 12 - Capture 1 13 - Input Source 14 - Input Source 1 15 - IEC958
Yours,
Joseph Parmelee Wild Bear Systems
| |