Ok, I looked again what volume meters are muted default when I booted with Ubuntu 10.04.3 live CD. I only doed following: 1. After the desktop presented my screen, I opened GNOME Terminal, and ran amixer >sound1.txt command to store original mixer values with a text file. 2. I launch Sound preference tool, and uncheck only the mute check box, not increased volume meters. 3. I ran again with amixer >sound2.txt command to generate new changed volume meters with an another text file. 4. I ran diff -u sound1.txt sound2.txt command to generate a diff style output what volume meters status are changed from off to on after I unchecked the mute checkbox in Sound preference tool.
I attaching the sound1.txt, sound2.txt, and sound-volumes-differences.txt files. To easyest your work, I copyed diff output: --- sound1.txt 2011-10-02 09:27:14.057861934 +0200 +++ sound2.txt 2011-10-02 09:28:24.398364608 +0200 @@ -42,25 +42,25 @@ Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: - Front Left: Playback 0 [0%] [-46.50dB] [off] - Front Right: Playback 0 [0%] [-46.50dB] [off] + Front Left: Playback 0 [0%] [-46.50dB] [on] + Front Right: Playback 0 [0%] [-46.50dB] [on] Simple mixer control 'Center',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 31 - Mono: Playback 0 [0%] [-46.50dB] [off] + Mono: Playback 0 [0%] [-46.50dB] [on] Simple mixer control 'LFE',0 Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum Playback channels: Mono Limits: Playback 0 - 31 - Mono: Playback 0 [0%] [-46.50dB] [off] + Mono: Playback 0 [0%] [-46.50dB] [on] Simple mixer control 'Side',0 Capabilities: pvolume pswitch penum Playback channels: Front Left - Front Right Limits: Playback 0 - 31 Mono: - Front Left: Playback 0 [0%] [-46.50dB] [off] - Front Right: Playback 0 [0%] [-46.50dB] [off] + Front Left: Playback 0 [0%] [-46.50dB] [on] + Front Right: Playback 0 [0%] [-46.50dB] [on] Simple mixer control 'Line',0 Capabilities: pvolume pswitch penum Playback channels: Front Left - Front Right After I done this three file generation, I reboot with live CD, and look in terminal what volume meter status change resulting sound turning on this sound card resulting I hear sound again. When I ran amixer set 'LFE',0 on command, I hear sound again, because my machine only have connected two speakers. I experienced very similar issues with an other machine with Ubuntu 10.04.3 live CD, with an Intel N10 soundcard related, see Bug 867287 bugreport with following link: https://bugs.launchpad.net/bugs/862287 With the Intel N10 sound card related little different volume meters are muted by default, but amixer set 'LFE',0 on command result sound turning on too if two speakers are connected this other sound card. I try making a patch with merging this two bugreport fix with one patch. When I done this fix, generating a custom live CD and testing two machines the patch. I attaching future this bugreport the patch, or the other bugreport? What type fix you are accept future? Attila ** Attachment added: "sound1.txt" https://bugs.launchpad.net/bugs/564472/+attachment/2494976/+files/sound1.txt ** Attachment added: "sound2.txt" https://bugs.launchpad.net/bugs/564472/+attachment/2494977/+files/sound2.txt ** Attachment added: "sound-volumes-differences.txt" https://bugs.launchpad.net/bugs/564472/+attachment/2494978/+files/sound-volumes-differences.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/564472 Title: When I booting with Lucid Beta2 live CD, my soundcard is muted with first time To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-utils/+bug/564472/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs