No sound on a Lenovo Y410 in hardy

[hellmet]

There is no sound on my Lenovo Y410 3000 series laptop. After fiddling with the computer using tips from this thread, http://ubuntuforums.org/showthread.php?t=611153&highlight=y410&page=2 ,
I was able to get sound through the speakers. But, headphone jack sensing doesn't work. So, the speakers continue to work even after the headphones have been plugged in. Tried it on Feisty and Gutsy. Yet to try Hardy.

[Adam Niedling (krychek)]

Headphone sensing doesn't work with my fujitsu laptop either.

Is there a test page for your laptop here: https://wiki.ubuntu.com/LaptopTestingTeam/Lenovo_IBM ?
Make one if there isn't and you feel like it. :)

I'm setting this bug incomplete because you need to follow these instructions:
https://wiki.ubuntu.com/DebuggingSoundProblems

[Pedro Villavicencio (pedro)]

We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!.

[Chow Loong Jin (hyperair)]

I'm confirming this bug because I have noticed that I cannot get sound on a fresh installation on Lenovo Y410. However, with the following modprobe option, I can get sound, but without headphone jack support.

option snd-hda-intel model=fujitsu

The problem here (I believe) is that the snd-hda-intel driver in ALSA Drivers 1.0.16, which is included in Ubuntu Hardy's kernels by default lacks support for the specific variant of Realtek ALC262 used by Lenovo 3000 Y410. Hence, auto-detection of the codec fails and sound doesn't work by default.

Support for Lenovo Y410 had been added in ALSA Drivers 1.0.17, and I have tested it using this script: http://ubuntuforums.org/showthread.php?t=820959

Related bug: Bug #252482

[Chow Loong Jin (hyperair)]

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It might be worth noting that the ALSA Backports PPA (http://launchpad.net/~alsa-backports/+archive)
fixes the issue for me, though only for the kernel that's in hardy-updates and hardy-security, not
in hardy-backports

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Hyperair
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[Chow Loong Jin (hyperair)]

This bug is fixed in Intrepid, with the 2.6.27 kernel.
  status fixreleased
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Chow Loong Jin