Touchpad does not work because of buggy controller implementation of the AUX loop command

[Colin Ian King]

A class of netbook and notebook laptops seem to have controllers that do not correctly implement the AUX loop command and this causes touchpad detection to fail.

This is fixed with upstream commit 1c7827ae70e7c8456e08f7bb9ef2238d27814cbe which is including in the Lucid kernel.

[Colin Ian King (colin-king)]

SRU justification:

Impact: Laptops touchpads do not get detected and hence do not work if they have a buggy implementation of the AUX loop command.

Fix: see attached patch (backport of upstream commit 1c7827ae70e7c8456e08f7bb9ef2238d27814cbe)

Testcase: With the patch, the AUX IRQ delivery test is bypassed and the touchpad works.

[Colin Ian King (colin-king)]

Applied:

http://kernel.ubuntu.com/git?p=ubuntu/ubuntu-karmic.git;a=commit;h=a36ea9e4ead28b3836ba4bd3abaab39fdf16f423

[Stefan Bader (smb)]

This was in 2.6.32, so its long released for Lucid.

[Martin Pitt (pitti)]

Accepted linux into karmic-proposed, the package will build now and be available in a few hours. Please test and give feedback here. See https://wiki.ubuntu.com/Testing/EnableProposed for documentation how to enable and use -proposed. Thank you in advance!

[Launchpad Janitor (janitor)]

This bug was fixed in the package linux - 2.6.31-21.59

---------------
linux (2.6.31-21.59) karmic-proposed; urgency=low

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