On November 2, 2014 3:09:51 AM EST, Takashi Iwai <tiwai(a)suse.de> wrote:
At Sat, 01 Nov 2014 10:31:31 +0300,
Matwey V. Kornilov wrote:
01.11.2014 04:51, Atri Bhattacharya пишет:
> I can help with that: Kernel 3.17 enables my laptop's (Lenovo Flex
> touchpad to be recognised while 3.16
doesn't. This is an ALPS v7
> which got added by way of this commit
and so missed 3.16.x series. With 13.2, therefore, my touchpad does not
work (it is recognised as PS/2 mouse and that is even worse!), but I
upgraded to 3.17.1 from Kernel:Stable and it works now. This is not an
exotic device either: most recent Lenovo laptops in the Yoga and Flex
series come with this or a synaptic touchpad whose support also only
got added to Kernel 3.17.
Could you open the ticket in our bugzilla, the commit seems to able
be easily backported to 3.12 kernel.
It's no single commit but a large amount of commit series, so not that
trivial. Look at the commits around the suggested one above.
I'm not personally impacted by the decision, but it seems with factory/tumbleweed
likely to have thousands of users testing the 3.17 kernel, upgrading kernels post release
is a more realistic option than bin previous releases.
(As of summer 2014, factory was reported to have 6,000 users, announcing the
factory/tumbleweed integration I assume will only increase that. We may know real numbers
in a couple weeks.)
In this case it seems recent Lenovo laptop support is either going to take significant
backporting or updating to 3.17.
Neither option seems good to me, but one of them is least bad. If that can be figured out
then the answer will hopefully become obvious.
Sent from my Android phone with K-9 Mail. Please excuse my brevity.
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