On 5 April 2016 at 22:49, Ben Hutchings <[email protected]> wrote: > Control: reassign -1 src:linux 3.16.7-ckt25-1 > Control: tag -1 moreinfo > > On Mon, 2016-04-04 at 22:11 +0300, Juho wrote: >> Package: general >> Severity: important >> >> After running "apt-get update && apt-get dist-upgrade" on 2016-04-03 >> touchpad of IdeaPad Yoga 13 stopped working. Both touch plate and >> buttons are not working. >> This laptop also has a touch screen and it is still working without >> problems. >> I'm not sure which package included this 8.4 update might be the faulty >> one. > [...] > > Most likely the kernel. However, I can't see any obviously relevant > changes. What does this command show: > > ls -l /sys/class/input/mouse*/device/device/driver
I have such a Yoga, for me it's the older yoga-13, pre-highdpi pro version. $ sudo modprobe -r psmouse $ sudo modprobe psmouse Makes it "work" again. I have no idea what happens during the boot, or how come post-boot psmouse module loading results in working behaviour. Possibly something is racy in the kernel and initializes differently "post-boot". It broke around 3.13 following upstream kernels for me or some such. And bisecting this using master/vanilla/.0 kernels ended up being fruitless, at least for me. So i'm reloading psmouse on my IdeaPad.... -- Regards, Dimitri.
