On Thu, Mar 17, 2016 at 11:43 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: > On Thu, Mar 17, 2016 at 1:06 AM, Mika Westerberg > <mika.westerberg@xxxxxxxxxxxxxxx> wrote: >> On Wed, Mar 16, 2016 at 02:59:48PM -0700, Andy Lutomirski wrote: >>> [add i2c-designware maintainers] >>> >>> On Wed, Mar 16, 2016 at 1:47 AM, Benjamin Tissoires <btissoir@xxxxxxxxxx> wrote: >>> > Hi Andy, >>> > >>> > On Mar 15 2016 or thereabouts, Andy Lutomirski wrote: >>> >> Hi- >>> >> >>> >> In 4.5 and several 4.5 rcs, I see occasional stuck taps (I think) on >>> >> my XPS 13 9350's touchpad. The effect is that trying to left-click >>> >> ends up middle-clicking. I think it's a kernel issue and not a >>> >> hardware or libinput issue, but I'm not 100% sure. I don't think I >>> >> had this issue in 4.4. >>> >> >>> >> I've attached what I think is an evtest issue of my fixing the issue >>> >> by pressing three fingers down in sequence and then releasing them. >>> >> After doing that, left-clicks worked. >>> > >>> > I think I already have been reported the issue here: >>> > https://bugs.freedesktop.org/show_bug.cgi?id=93948 >>> > >>> > The result was that it was more likely an I2C transport bug than a >>> > hid-multitouch one (see comment #8 in the fdo bug). >>> > >>> > You can try to run hid-recorder when you see the problems, and then >>> > parse the output (or just send it to me). There is huge chances that >>> > there will be no events from I2C sending the release. >>> > >>> > And again, I am not sure how we could end up debugging this in the >>> > i2c-designware driver :( >>> > >>> >>> Does this ring a bell? >> >> i2c-designware usually prints errors to dmesg if it fails to transfer >> messages. Can you include dmesg of the failure as well? > > Nothing shows up at all. All I have is: > > input: DLL0704:01 06CB:76AE Touchpad as > /devices/pci0000:00/0000:00:15.1/i2c_designware.1/i2c-7/i2c-DLL0704:01/0018:06CB:76AE.0001/input/input12 What is the fw id? I have a 9343 with the same touchpad and have not noticed an issue. This is the dmesg output for my touchpad. [ 5.216319] psmouse serio1: synaptics: Touchpad model: 1, fw: 8.1, id: 0x1e2b1, caps: 0xd00123/0x840300/0x12e800/0x0, board id: 3038, fw id: 1832324 If we have the same firmware version then we can eliminate that as a factor. > -- > 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 -- 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
