On Sun, Jun 26, 2016 at 4:37 PM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: > On Fri, Apr 22, 2016 at 9:37 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: >> Adding Mario. >> >> On Fri, Mar 18, 2016 at 11:53 AM, Andrew Duggan <andrew.duggan@xxxxxxxxx> wrote: >>> On Fri, Mar 18, 2016 at 10:42 AM, Andy Lutomirski <luto@xxxxxxxxxxxxxx> wrote: >>>> On Thu, Mar 17, 2016 at 1:24 PM, Andrew Duggan <andrew.duggan@xxxxxxxxx> wrote: >>>>> 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 >>>> >>>> Mine is shinier and newer, apparently. >>>> >>>> psmouse serio1: synaptics: Touchpad model: 1, fw: 8.2, id: 0x1e2a1, >>>> caps: 0xf00223/0x840300/0x12e800/0x0, board id: 3038, fw id: 2011643 >>> >>> It looks like you actually have a slightly newer revision of the >>> module (76AE vs my 76AD). So I can't quite do a direct comparison. >>> However, the 9350 system listed in the bug does have my exact module. >>> Which is why we think it might be a problem with the embedded I2C >>> chipset in the 9350. > > I don't know if this was a change in Fedora 24 or a change in the BIOS > 1.4.3, but this problem has gotten *much* worse. It seems to trigger > every 30 seconds or so for me now. > After fiddling for a bit, this seems to be somehow related to palm detection or typing detection. I can't seem to trigger it with just pointer movements, but if I type (with my palms necessarily near the touchpad), it triggers quickly. hid-recorder output attached. I don't know how to decode it sort of playing it back with hid-replay, and that doesn't seem terribly helpful. It's plausible that this is a userspace bug, and the hid-recorder output should make it clear either way. --Andy
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