On Fri, Oct 31, 2014 at 06:30:40PM +0100, Pavel Machek wrote: > 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+. No, that Clevo W650SH that Roel has is a Haswell and is fairly recent and has no external PS/2 ports and still wants to be in active MUX mode. So we'll have to continue with the blacklist I'm afraid. -- Dmitry -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
