I’m having the same problem using 9.10 or the new 10.04 on an Acer Aspire One and both versions cause the same hiss problem when headphones are connected.
I followed the links posted by mastervivi and the information led me to a fix for the problem. The chipset of course is revealed by the head -n 1 /proc/asound/card0/codec* command will be Realtek ALC272. Using the HD-Audio-Models.txt found here: http://www.mjmwired.net/kernel/Documentation/sound/alsa/HD-Audio- Models.txt You will see a list of options to use for the options snd-had-intel model= line. On the line 67, under the ALC267/268, the Acer Aspire One is listed, but this is the wrong chipset. On the line 92, under the ALC662/663/272, the ACER Aspire One is not listed. I tried the first two options with no real success. Using one kills the headphone but does solve the hiss issue. I eventually tried “asus-mode1” in the options line and it appears to be working properly now. I have some more testing to see if the mic and recording abilities are working properly. I would be interested in any comment or feedback to see if this helps others. -- [9.10]Audio hiss coming from netbook speakers when using headphones https://bugs.launchpad.net/bugs/480929 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
