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Bug 85775 - Kernel 2.6.11 disables tapping on Alps touchpads
Summary: Kernel 2.6.11 disables tapping on Alps touchpads
Status: RESOLVED DUPLICATE of bug 84657
Alias: None
Product: Gentoo Linux
Classification: Unclassified
Component: [OLD] Core system (show other bugs)
Hardware: x86 Linux
: High normal (vote)
Assignee: Gentoo Kernel Bug Wranglers and Kernel Maintainers
Depends on:
Reported: 2005-03-18 07:39 UTC by Stuart Shelton
Modified: 2005-07-17 13:06 UTC (History)
0 users

See Also:
Package list:
Runtime testing required: ---


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Description Stuart Shelton 2005-03-18 07:39:10 UTC
On laptops with Alps touchpads, tapping is disabled in Linux 2.6.11 (and gentoo-dev-sources-2.6.11-r4).

There is a patch which apparently addresses this (aimed at Mandrake's kernels) available from

Could someone who understands how this works take a look at this patch, and if it's sensible add it to Gentoo's custom patches?


Comment 1 Daniel Drake (RETIRED) gentoo-dev 2005-03-18 09:23:01 UTC
Actually, hardware tapping is enabled in gentoo-dev-sources-2.6.11-r4
Does it not work for you?

We include this patch:

*** This bug has been marked as a duplicate of 84657 ***
Comment 2 Stuart Shelton 2005-03-19 05:34:25 UTC
Sorry, but I'm going to reopen this bug: Bug 84657 says that this problem was fixed in gentoo-dev-sources-2.6.11-r4, yet it was this kernel for which I reported the problem!

As far as I can tell, on my Sony Z1 laptop with Alps touchpad, this issue is still causing problems even in 2.6.11-r4.

The symptoms are:
* Tapping and Double-tapping not working at all (have to use buttons)
* Even when using buttons, selecting text is broken on console

To elaborate this 2nd point:

Even holding down the hardware left-button, moving the cursor too fast whilst selecting text or pausing for too long causes the driver to think that I've released and re-pressed the button, restarting the selection from the current location.  This is not a hardware thing, since all previous kernels work fine.  This only applies to (fb) consoles, rather than anything on X.
Comment 3 Daniel Drake (RETIRED) gentoo-dev 2005-03-19 07:51:11 UTC
Lets keep it on the same bug

*** This bug has been marked as a duplicate of 84657 ***