Created attachment 412994 [details] alsa-info for MacBook Pro 13" 5,5 Description of problem: On MacBook Pro 13" (5,5) summer 2009 edition the front speaker is muted by default. Modifying this (unmute + setting volume to 0dB fixes it). This report is for the built in speakers. Version-Release number of selected component (if applicable): alsa-lib-1.0.23-1.fc13.x86_64 How reproducible: always Actual results: No sound without modifying mixer (alsamixer -c 0) Expected results: Sound by default Additional info: See attachments.
Created attachment 412995 [details] Before
Created attachment 412996 [details] After
*** Bug 590906 has been marked as a duplicate of this bug. ***
If I can help a quick fix it to add the following lines to /etc/rc.local amixer -c 0 set 'Surround Speaker' 115 unmute amixer -c 0 set 'Front Speaker' 115 unmute amixer -c 0 set 'Surround Speaker Playback Volum' 115 unmute ... This is what i did on my Macbook Pro 5.4 :) Luca
This bug appears to have been reported against 'rawhide' during the Fedora 14 development cycle. Changing version to '14'. More information and reason for this action is here: http://fedoraproject.org/wiki/BugZappers/HouseKeeping
The workaround from Luca didn't work for me *** This bug has been marked as a duplicate of bug 580703 ***
> amixer -c 0 set 'Surround Speaker' 115 unmute ...did the trick on my MacBookPro5,5. > amixer -c 0 set 'Front Speaker' 115 unmute The "Front Speaker" command unmutes some very strange speaker, it sounds kinda "metallic", with no bass, so I turned it off again. Together with the "Surround Speaker" it sounds a bit better, but overall sound experience is still awful compared to what I have under MacOSX. But at least it's "working" now! > amixer -c 0 set 'Surround Speaker Playback Volum' 115 unmute The "Surround Speaker Playback Volum" command did nothing here. Thanks, Luca! $ lspci | grep Audio 00:08.0 Audio device: nVidia Corporation MCP79 High Definition Audio (rev b1)