Update to comment #15 above. PROGRESS and some SUCCESS !!
Downloaded the hda-verb utility from here : ftp://ftp.suse.com/pub/people/tiwai/misc/hda-verb-0.4.tar.gz Extracted and compiled it. Issuing this command enables sound on my main speakers : > sudo ./hda-verb /dev/snd/hwC0D3 0x01 SET_GPIO_DATA 0x01 and issuing this command sets the sound to a really low level > sudo ./hda-verb /dev/snd/hwC0D3 0x01 SET_GPIO_DATA 0x00 >From what I can tell in the docs, this is related to the EAPD control ( External Amplifier Power Down ). Now I just have to figure out why the driver sets that bit to the wrong state. (Sorry for spreading this over multiple posts. There does not seem to be a way to edit / update an existing post). -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1041322 Title: Very low sound on HP p7-1227c To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1041322/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
