Hi Roel, On Thu, Oct 30, 2014 at 06:14:09PM +0100, Roel Aaij wrote: > Dear kernel input developers, > > While trying out 3.18-rc2, I noticed that the Elantech touchpad on my > laptop didn't work as intended anymore. Mouse movement and tapping one > finger worked, but scrolling and two finger tapping did not. X.org also > didn't recognise the touchpad as a synaptics touchpad anymore. > > After googling around I found that i8042.nomux=0 brought it back to normal. > > My laptop is a Clevo model W650SH with a keyboard and a touchpad attached, > and no touchschreen. Some output of dmesg is listed at the bottom, and the > result of dmidecode is attached. Argh, so quick search shows that there might be quite a few clones of W650SH floating around, and I wonder if any of W650SF/W650SJ/W670SJQ/ W650SR/W650SZ exhibit the same behavior. We might need to revert the nomux back to the original setting, although I really do not want to do this: in my opinion it is better to have touchpad revert to basic mode on affected laptops and work on re-enabling MUX on them instead of having touchpad/keyboard completely hosed from the get-go. Linus, any guidance here? Can we live with such regression? Thanks. -- 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