Thank you Daniel, here are the results :
options snd-hda-intel probe_mask=1 → doesn't work options snd-hda-intel model=acer probe_mask=1 → it works ! (wtf, I was absolutely sure that I have tested this before !) But, this time, sound is TOO high : 5% on the gnome applet seems already quite high (equivalent to 60-70% on Jaunty) options snd-hda-intel model=acer → same as above (I nearly awoke all my family when I tested without headphones !) options snd-hda-intel model=will probe_mask=1 → it works, and it provide more reasonable sound (let's say 50% with this equal 10% with model=acer) And, one more test : options snd-hda-intel model=will → same as above, so probe_mask=1 is indeed useless. That's all for now, thank you for your help ! -- [Regression] 0x1025007f needs position_fix whitelist entry https://bugs.launchpad.net/bugs/418627 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