Yep, the noise issue is definitely still there. I can unload and reload the module, and on some loads it's rather less noticeable, but always crackly at least for some volume slider settings (more on that later). On about 50% of the loads, it's a persistently loud crackly hissing noise with a period of a couple of seconds (it gets quieter and louder).
I do consistently get the "better" (not crackly) noise scenario by switching to mbp3. I don't remember any more if mbp3 used to be even better, but probably not. At any rate, the current mbp3 is tolerable but not great. Regardless of which module I load, or how lucky I get with the random factors mentioned above, the noise level fluctuates depending on the volume slider. On mbp5, with all other sliders maximized, the noise peaks for Master volume are: 8, 17, 27, 36, 45, 55, 64, 73, 83, 92. The noise volume does not substantially depend on the slider setting (i.e. music is acceptable when it's loud, but useless when it's quiet). On mbp3, there is just a faint hint of crackling at those same settings, but the crackling is much much quieter. The white noise background seems to be about the same, maybe slightly quieter on mbp3. What other information could I get to help debug this? -- Poor support for MacBook Pro 5,1: noise, no jack sense, no in-line headset microphones, broken volume control https://bugs.launchpad.net/bugs/488103 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
