Headphones don't work for aluminum iMac
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
ALSA driver |
New
|
Unknown
|
|||
Mactel Support |
New
|
Undecided
|
Unassigned |
Bug Description
Hello!
For the most part, the Jaunty beta is working very nicely on my intel iMac. This aluminum 20" imac reports 7,1 using dmidecode. Under 8.04 and 8.1 as well, I have been able to hear lower quality sounds through the built-in speakers using either of these additions to alsa-base.conf:
options snd-hda-intel model=mbp3
or
options snd-hda-intel model=imac24.
Unfortunately, the sound quality seems impaired, and I haven't been able to get the headphones to work at all. Using the default alsa-base.conf gives very low amplitude headphone output that requires a lot of amplification to hear; no internal speaker output is heard with the default.
Here's the output from aplay -l:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC885 Analog [ALC885 Analog]
Subdevices: 0/1
Subdevice #0: subdevice #0
card 0: Intel [HDA Intel], device 1: ALC885 Digital [ALC885 Digital]
Subdevices: 1/1
Subdevice #0: subdevice #0
cat /proc/asound/cards:
0 [Intel ]: HDA-Intel - HDA Intel
I have also attached the output from dmidecode.
Please let me know if I can furnish any other information or assist in the resolution of this sound problem.
Aloha,
-Jeff Mings
Changed in alsa-driver: | |
status: | Unknown → New |
Addition:
I have used alsamixer, which is another great old-school terminal app :), to ensure that all relevant channels are turned up and not muted. I've looked through a lot of postings and tried many different possibilities on Heron, Ibix and Jaunty Jackalope beta.