Launchpad has imported 9 comments from the remote bug at https://bugzilla.kernel.org/show_bug.cgi?id=196719.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2017-08-21T13:09:18+00:00 johannes.w.seitz wrote: After updating to Kernel Version 4.12.7 and again with 4.12.8 two finger scrolling stops working every time my Thinkpad T431s wakes from suspend. With kernel version 4.12.6 and 4.9.44 (LTS) everything works, so I suppose it's an issue with the kernel/driver. The Trackpad is listed as "SynPS/2 Synaptics" when I do a `libinput list-devices`. I'm using the standard pre-compiled, current kernel package from Arch x64 (package `linux`). Do you need anything else from me? Any log files that would be helpful? Thanks! Johannes Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/0 ------------------------------------------------------------------------ On 2017-08-21T13:14:18+00:00 johannes.w.seitz wrote: Correction: The latest mainline kernel that worked for me was 4.11.9 and *not* 4.12.6. Sorry! Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/1 ------------------------------------------------------------------------ On 2017-08-21T19:56:47+00:00 thomas wrote: I have the same problem with a Thinkpad T440s. What's interesting is that scrolling still works, but now requires 3 fingers instead of 2. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/2 ------------------------------------------------------------------------ On 2017-08-22T09:25:18+00:00 johannes.w.seitz wrote: Created attachment 258041 attachment-22902-0.html I just tried to reproduce this. Same here! It works with three fingers instead of two. This is so weird! On 21 August 2017 at 21:56, <bugzilla-dae...@bugzilla.kernel.org> wrote: > https://bugzilla.kernel.org/show_bug.cgi?id=196719 > > Thomas Bächler (tho...@archlinux.org) changed: > > What |Removed |Added > ------------------------------------------------------------ > ---------------- > CC| |tho...@archlinux.org > > --- Comment #2 from Thomas Bächler (tho...@archlinux.org) --- > I have the same problem with a Thinkpad T440s. What's interesting is that > scrolling still works, but now requires 3 fingers instead of 2. > > -- > You are receiving this mail because: > You are on the CC list for the bug. > You reported the bug. Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/3 ------------------------------------------------------------------------ On 2017-08-23T18:49:39+00:00 dmitry.torokhov wrote: Is it still shown as "SynPS/2 Synaptics" in 4.12 or became "Synaptics TM3289-002" or similar? I.e. did it switch over to RMI from PS/2? Can you try vanilla 4.12? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/4 ------------------------------------------------------------------------ On 2017-08-26T13:46:29+00:00 johannes.w.seitz wrote: It did not change, it's still listed as follows: Device: SynPS/2 Synaptics TouchPad Kernel: /dev/input/event15 Group: 7 Seat: seat0, default Size: 97x67mm Capabilities: pointer Tap-to-click: disabled Tap-and-drag: enabled Tap drag lock: disabled Left-handed: disabled Nat.scrolling: disabled Middle emulation: disabled Calibration: n/a Scroll methods: *two-finger edge Click methods: *button-areas clickfinger Disable-w-typing: enabled Accel profiles: none Rotation: n/a Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/5 ------------------------------------------------------------------------ On 2017-08-28T21:21:44+00:00 dmitry.torokhov wrote: Here are the changes that went into Synaptics PS/2 driver: git log --oneline v4.11.9..v4.12.7 -- drivers/input/mouse/synaptics.c 2fef826e45c6 Input: synaptics - tell users to report when they should be using rmi-smbus f4101ff87daf Input: synaptics - warn the users when there is a better mode f4947d79a708 Input: synaptics - keep PS/2 around when RMI4_SMB is not enabled 2755551188d2 Input: synaptics - clear device info before filling in f6c4442bfa08 Input: synaptics - use u8 instead of unsigned char 212baf03a30a Input: synaptics - do not abuse -1 as return value 991d29fe02a7 Input: synaptics - use BIT() and GENMASK() macros 2c6ecbba90d4 Input: synaptics - add synaptics_query_int() e839ffab0289 Input: synaptics - add support for Intertouch devices 6c53694fb222 Input: synaptics - split device info into a separate structure 996b9eedd061 Input: synaptics - do not mix logical and bitwise operations The one I'd looked closer at is "991d29fe02a7 Input: synaptics - use BIT() and GENMASK() macros"> Can you try reverting them one by one and see which one is at fault? Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/6 ------------------------------------------------------------------------ On 2017-11-15T09:19:01+00:00 kai.heng.feng wrote: There's another report at Launchpad [1]. The bisection result says e839ffab028981ac77f650faf8c84f16e1719738 is the first bad commit. [1] https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478 Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/50 ------------------------------------------------------------------------ On 2018-07-02T17:56:34+00:00 f_bugzilla wrote: This bug is still present on 4.15.0 (Ubuntu 18.04). I haven't tested mainline yet. I am working around the issue with the kernel parameter "psmouse.synaptics_intertouch=0", so that also seems to confirm that the offending commit is e839ffab0289 (CC'ing Benjamin). Reply at: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1722478/comments/61 ** Changed in: linux Status: Unknown => Confirmed ** Changed in: linux Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1722478 Title: Two-finger scrolling no longer works after resuming from suspend To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/1722478/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
