Jaunty Alpha 5, Hardy: Sound level low, poor sound quality on Macbook Pro
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Won't Fix
|
Undecided
|
Unassigned | ||
Bug Description
One of the reasons for purchasing a Macbook has been its very good speakers, using OS X they sound louder than any other notebook I've owned, good bass, low noise. Using Ubuntu on the same system, I get a somewhat "metallic" distortion, and the maximum output level is way below the one on OS X. Alsa appears to work, pommed controls the Fn keys, but I only get 3 usable steps in the sound mixer (80,90 and 100%), below those it's almost muted.
Kernel 2.6.24-16-generic, all available updates installed.
lspci -v:
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
Subsystem: Apple Computer Inc. Unknown device 00a0
Flags: bus master, fast devsel, latency 0, IRQ 19
Memory at 9b500000 (64-bit, non-prefetchable) [size=16K]
Please run the alsa-info.sh debugging script noted on the DebuggingSoundP roblems wiki page, and attach the debugging output (in /tmp) to this bug.