Re: Problems with Elantech touchpad in 3.18-rc2

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On Fri 2014-10-31 09:24:36, Dmitry Torokhov wrote:
> On Thu, Oct 30, 2014 at 12:25:06PM -0700, Dmitry Torokhov wrote:
> > On Thu, Oct 30, 2014 at 12:06:03PM -0700, Linus Torvalds wrote:
> > > On Thu, Oct 30, 2014 at 11:03 AM, Dmitry Torokhov
> > > <dmitry.torokhov@xxxxxxxxx> wrote:
> > > >
> > > > Linus, any guidance here? Can we live with such regression?
> > > 
> > > No. If people are already finding machines with problems, that means
> > > that there will be a lot of them once distributions move to that
> > > kernel.
> > 
> > My only argument here is that failure is much less severe than with MUX
> > case: when in legacy mode the worst that is happening is that advanced
> > features (multi-touch, two-finger scroilling, etc) do not work so the
> > experience is similar to Windows box with no venrod drivers installed.
> > Whereas when active MUX does not work but we are tying to use it your
> > device is completely hosed.
> 
> So I slept on it and I decided that we should indeed revert the patch,
> since it causes more grief to people with good hardware than I
> expected. We should not punish owners of good hardware because some
> vendors can't write their firmware.

You can still add "for anything manufactured in 2015+, assume it does
not need MUX" and add a whitelist entry for any machine with external
ps/2 ports that still needs it... I guess there would be very little
of them made in 2015+.
									Pavel
-- 
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(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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