On Wed, May 24, 2017 at 09:25:00PM -0700, Andy Lutomirski wrote: > On Wed, May 24, 2017 at 3:26 PM, Jiri Kosina <jikos@xxxxxxxxxx> wrote: > > On Wed, 24 May 2017, Andy Lutomirski wrote: > > > >> I just build from Linus' tree from Saturday (ef82f1ad), and touchpad > >> input is busted on my laptop. The device is still there and evtest > >> still shows events, but something is wrong and libinput either thinks > >> I'm not moving at all or I'm trying to teleport to the edge of the > >> screen. > >> > >> Is this a known problem or should I try to track it down? > > > > Did this work properly in 4.11? > > I confess to not having tested 4.11, for 4.11-rc7 works. > > > > > Is this G11 based chipset? (IOW, is this device driven by wacom driver?). > > If so, 6f107fab8 and/or 60a2218698 might be potential candidates. > > I don't think so. > > On a good kernel, I see: > > /dev/input/event10: DLL0704:01 06CB:76AE Touchpad > > That thing is here, and the driver is hid-multitouch: > > /sys/devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-8/i2c-DLL0704:01/0018:06CB:76AE.0001/input/input13 > > On 4.12-rc, I see a SynPC/2 Synaptics Touchpad instead, attached to > i8042/serio1. > > The culprit appears to be: > > i2c_designware.1: controller timed out > i2c_hid i2c-DLL0704:01: hid_descr_cmd failed > > I'm wondering whether something like > 9143059fafd4eebed2d43ffb5455178d4010e60a could be involved. You need the following, I think: https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git/commit/?h=i2c/for-current&id=e2c824924cdb41528932c550647406ad81336b18 -- 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
