shadowfoxx and Vijay, more playing around and I agree the VREF of 50 is the way to go. More good news, I have a way to make this persistent even with a reboot :). Obviously the end solution is to submit a patch to ALSA, which I will do eventually but thankfully there is an early patching system available which we can take advantage of, you can read about it at http://kernel.org/pub/linux/kernel/people/tiwai/docs/HD-Audio.html#_early_patching
But here is the goods as you have to use hda-verb and sysfs to poke around to get the necessary values. Cut and paste the following into a new file '/lib/firmware/hda-init.fw'. ----snip---- [codec] 0x10ec0262 0x17aa3837 0 [verb] 0x19 0x707 0x21 ----snip---- then modify your /etc/modprobe.d/alsa-base.conf file to add the following to the 'options snd-hda-intel' line 'patch=hda-init.fw'. So you should now have something like: options snd-hda-intel power_save=10 power_save_controller=N model=lenovo-3000 patch=hda-init.fw This will allow the VREF_50 to survive the reboot, works for me :). For some reason the input source keeps switching back to Mic and I have to change it to Int Mic using alsamixer each boot but I suspect this is fixable. -- Internal microphone not working on intel-hda (Realtek ALC262) in gutsy (and intrepid and ...) https://bugs.launchpad.net/bugs/141445 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
