I'm bitten by this the bug too. As I'm unsure which package is responsible for this bug so I just post a comment here and hope for the best :-)
Laptop Asus A2500l Ubuntu 9.04 00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] AC'97 Sound Controller (rev a0) The problem starts when booting with the system the master volume is muted. When I unmute the master volume with alsamixer/gnomemixer plugin only the right speaker produces sound. Checking the master and pcm slides shows them all at >0% for both channels and unmuted But still the left channel is muted. The fix is to mute and disconnect the channels for both master and pcm. Then slide all the sliders from 100% to 0% to 100% to 50% and unmute the channels. Then both speakers work. Don't know which details I could provide to pin down this bug but I'm happy to provide them. -- it's just sounding one speaker. the right one, what do i got to do to fix it? https://bugs.launchpad.net/bugs/332278 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs