[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #30 from Greg Reichow --- See video attached. This was using the lowclip patch I mentioned with accel @ 0. For reference, the physical trackpad distance covered in the video is about 90mm in 3 seconds. So roughly 30mm/sec. I roughly measured the distance covered on the screen, it is about 110mm-120mm. https://www.dropbox.com/s/g32jmah45so38ck/IMG_6781.MOV?dl=0 I then did another video with far faster movements, see below: https://www.dropbox.com/s/9yytyaydw26u5xt/IMG_6782.MOV?dl=0 Even with these movements at a significantly higher speed, I am still only covering about 50-75% of the screen width. Greg -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #29 from Peter Hutterer --- https://github.com/whot/libinput/tree/wip/evemu-v3 is the closest I have so far. It's still WIP so the output format isn't stable. Run with: sudo ./build/libinput-record --with-libinput /dev/input/eventX (for the touchpad device). That will print the evdev events along with the libinput events. It's not evemu in that I don't have the python wrappers to process the data but that'll come eventually. I tested the lowclip patch - the base speed is too slow for my liking but I can accept how this could be a preference. The acceleration is still too fast with the pointer shooting off as soon as I move a bit faster than the speed in the video from comment #26 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 --- Comment #5 from Daniel van Vugt --- I'm not too concerned. The bugs are all linked and with enough detail to judge if and when this can be closed post-1.10.2 without further work. Fingers crossed. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 --- Comment #4 from Peter Hutterer --- If you can't reproduce it yourself, please don't upstream bugs until you've verified it happens with vanilla upstream. For all we know this is a side-effect of the other two bugs and has already been fixed. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 --- Comment #3 from Daniel van Vugt --- I'm not someone experiencing the crash myself. But we can easily wait to see what happens in Ubuntu 18.04 once libinput 1.10.2 arrives there. That said, an almost-amusing way to reproduce the crash is described here: https://launchpad.net/bugs/1754487 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105409] Touchpad deadzone on Razer Blade Stealth
https://bugs.freedesktop.org/show_bug.cgi?id=105409 --- Comment #1 from Dave --- Created attachment 137922 --> https://bugs.freedesktop.org/attachment.cgi?id=137922&action=edit evemu-describe output Also attached, the evemu-describe output -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105409] Touchpad deadzone on Razer Blade Stealth
https://bugs.freedesktop.org/show_bug.cgi?id=105409 Bug ID: 105409 Summary: Touchpad deadzone on Razer Blade Stealth Product: Wayland Version: unspecified Hardware: x86-64 (AMD64) OS: Linux (All) Status: NEW Severity: normal Priority: medium Component: libinput Assignee: wayland-bugs@lists.freedesktop.org Reporter: therav...@gmail.com Created attachment 137921 --> https://bugs.freedesktop.org/attachment.cgi?id=137921&action=edit libinput-debug-events I've noticed with the touchpad on the late-2017 Razer Blade Stealth (with the i7-8550U), there's a deadzone slightly off-center. Running kernel: 4.16.0-041600rc4-generic libinput: built from master at cd966460 The touchpad works fine in Windows, however does not work under Ubuntu (tested 17.10 and 18.04) or Fedora 27. It also occurs on both Wayland and X, and with both the Synaptics drivers and libinput. The issue appears less significant when using libinput, but still constant. If a finger enters this zone, it will register the following in the logs: > touch 0 from BUTTON_STATE_AREA, event BUTTON_EVENT_UP to BUTTON_STATE_NONE Occasionally, when a finger is held in that zone, the cursor will seemingly vibrate. The device information is: Device: 1A586753:00 06CB:8323 Touchpad Kernel: /dev/input/event16 Group:9 Seat: seat0, default Size: 102x60mm Capabilities: pointer gesture 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 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 Peter Hutterer changed: What|Removed |Added CC||peter.hutte...@who-t.net Status|NEW |NEEDINFO --- Comment #2 from Peter Hutterer --- I'll need an evemu recording for this, it's likely some tap state/palm detection confusion again. And a verification that it's happening on git master (or at least 1.10.2), thanks. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105108] Lenovo Yoga 11S touchpad is jittery
https://bugs.freedesktop.org/show_bug.cgi?id=105108 Peter Hutterer changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #25 from Peter Hutterer --- thanks for testing, merged and pushed commit ea7498ef971350454db9c78b9ba160e7d6bb455b Author: Peter Hutterer <> Date: Wed Feb 21 13:41:31 2018 +1000 touchpad: use the fuzz value (if any) for the hysteresis margin commit 1b64888a2248af2a287365598cf520e4e2be33fd Author: Peter Hutterer <> Date: Fri Feb 23 11:44:23 2018 +1000 touchpad: enable hysteresis based on a 0 fuzz value commit 1523d8bb2e066bec297f7a03ce4a0d8cada8f383 Author: Peter Hutterer <> Date: Mon Mar 5 13:17:43 2018 +1000 Extract and reset the abs fuzz value for the x/y axes -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 104828] Wobbly AlpsPS/2 ALPS DualPoint TouchPad
https://bugs.freedesktop.org/show_bug.cgi?id=104828 Bug 104828 depends on bug 105108, which changed state. Bug 105108 Summary: Lenovo Yoga 11S touchpad is jittery https://bugs.freedesktop.org/show_bug.cgi?id=105108 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105108] Lenovo Yoga 11S touchpad is jittery
https://bugs.freedesktop.org/show_bug.cgi?id=105108 Bug 105108 depends on bug 105303, which changed state. Bug 105303 Summary: Kernel absfuzz handling is inconsistent https://bugs.freedesktop.org/show_bug.cgi?id=105303 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 104828] Wobbly AlpsPS/2 ALPS DualPoint TouchPad
https://bugs.freedesktop.org/show_bug.cgi?id=104828 Bug 104828 depends on bug 105303, which changed state. Bug 105303 Summary: Kernel absfuzz handling is inconsistent https://bugs.freedesktop.org/show_bug.cgi?id=105303 What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105303] Kernel absfuzz handling is inconsistent
https://bugs.freedesktop.org/show_bug.cgi?id=105303 Peter Hutterer changed: What|Removed |Added Status|NEW |RESOLVED Resolution|--- |FIXED --- Comment #2 from Peter Hutterer --- commit 1523d8bb2e066bec297f7a03ce4a0d8cada8f383 Author: Peter Hutterer <> Date: Mon Mar 5 13:17:43 2018 +1000 Extract and reset the abs fuzz value for the x/y axes -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #28 from Greg Reichow --- Couple comments to answer above: 1. Not using a Hi-dpi display. Reported resolution is 1680 x 1050. 2. Exact machine is a 2011 MacBook Pro 8,2 3. Agree the earlier patch was too fast. I also found I did not like the exponential acceleration from my first patch and have since switched full time to the last patch I submitted (lowclip_patch) which has a simple linear accel curve yet starts slower to enable precision at low speeds. For reference, my comfortable setting is 0. 4. I will try to get some similar video with the slow finger movement and share back with you. Is there a utility you have that records both physical input speed and also resulting cursor speed on screen? I wonder if something is not happening further up the stack from libinput and causing the differences in resulting pointer movement? (As I keep going through the libinput code and do not understand why we are seeing such different results from similar input speeds as you have shown above.) -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 --- Comment #1 from Daniel van Vugt --- This is happening in libinput 1.10.1 and 1.10.0 so far. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 Bug ID: 105407 Summary: Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed. Product: Wayland Version: unspecified Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: libinput Assignee: wayland-bugs@lists.freedesktop.org Reporter: daniel.van.v...@canonical.com Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed. Sounds like it might be something fixed in libinput 1.10.2 but those fixes seem to describe different assertions to this one. https://launchpad.net/bugs/1751086 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105407] Xorg assertion failure: Xorg: ../src/evdev-mt-touchpad-tap.c:1002: tp_tap_handle_state: Assertion `tp->tap.nfingers_down > 0' failed.
https://bugs.freedesktop.org/show_bug.cgi?id=105407 Daniel van Vugt changed: What|Removed |Added See Also||https://launchpad.net/bugs/ ||1751086 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #27 from Nate Graham --- > [1] having said that, I'm now wondering what's going on there, because if I move 10mm, it moves by ~10mm on the screen, not 3.7 And that, I think, is exactly the bug we're trying to get to the bottom of. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 105265] Disable speed-based thumb detection on semi-mt devices
https://bugs.freedesktop.org/show_bug.cgi?id=105265 --- Comment #3 from Peter Hutterer --- *** Bug 104889 has been marked as a duplicate of this bug. *** -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #26 from Peter Hutterer --- And here's the thing - libinput's acceleration works in physical distances. So the hw shouldn't really matter because a speed of 10mm/s is always that, regardless of the hardware. As long as touchpad-edge-detector and you agree on the ranges/dimensions on the hardware, there shouldn't be much difference. That acceleration in the attachment is actually a slowdown, we multiply the calculated input speed by a magic constant (0.37) so that a physical delta of 10mm should end up in a delta of 3.7mm [1], give or take with the changing screen resolution. Greg's patch just slows things down even further and a -0.75 should then make this even slower. The question was directed at anyone btw, sorry, should've made that clear. If you have a compositor that doesn't support hidpi, you'd see a slowdown because with twice the pixel density (which libinput knows nothing about) your delta is half as fast - but that's something the compositor has to take care of (mutter already does). It would be good if you could attach an evemu recording from a finger movement. Close your eyes, put your finger down and move from left to right at about 20mm/s - hard to guess I know but it's basically a medium movement. Then I can try to reproduce this here, maybe, hopefully. For reference: here's a video of me moving the finger and the corresponding cursor movement in the libinput debug-gui: https://photos.app.goo.gl/BTED3UdQwYqw5iW22 [1] having said that, I'm now wondering what's going on there, because if I move 10mm, it moves by ~10mm on the screen, not 3.7 -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #25 from Nate Graham --- Funny, I notice a MASSIVE difference (all Mac touchpads feel the same; there's no moderl/year difference in touchpad feel). I'm the kind of person who wants a touchpad so good that I don't feel the urge to use a mouse, so maybe I'm just picky. But I really really really do notice the difference. With Greg's patch, I have to use a -0.75 accel value, and it feels perfect. But there may be hardware-specific factors at play. My touchpad hardware is definitely not the highest quality in the world. I'm not married to Greg's patch per se; my issue with libinput's default acceleration curve is pretty simple to articulate: it accelerates too much at slow and slow-medium speeds. Check out the graph attached at https://bugs.freedesktop.org/attachment.cgi?id=136584: Up to 50 mm/s, the default acceleration is faster than with Greg's patch, and there's a very abrupt cliff where the acceleration increases. Aside from technical matters, I'm just not sure what the justification is for accelerating small movements that much. It makes precise control very difficult. I do not have a HiDPI screen (didn't know it was directed at me, sorry). Regular old 1920x1080 @ 13". Not sure it's relevant now since I'm using KDE Plasma with KWin, not GNOME with Mutter. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #24 from Peter Hutterer --- I do, a 2015 macbook air. And while I admit there are differences, I don't think they're that big. And that's the biggest puzzle, I can switch between the air and the t440 and notice a bit of a difference but it's not massive. Whereas the patch above that makes things useful for you makes the cursor absolutely uncontrollable - and with that I don't mean "i don't like it" but "i cannot hit a 200x200 size target with it" as soon as I'm going beyond crawling speed. So, *something* is off and I still have not yet identified what it is. Again: "please confirm that you do *not* have a hidpi screen" -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too fast with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 Nate Graham changed: What|Removed |Added Summary|Acceleration still too slow |Acceleration still too fast |with slow and slow-medium |with slow and slow-medium |finger movements|finger movements -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too slow with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 --- Comment #23 from Nate Graham --- Peter, do you happen to have access to a Mac running macOS? IMHO that's the benchmark of A+ touchpad experience. Yes, a lot of this is the good hardware, but a lot of it is also the acceleration curve; I continue to find libinput unusable with the default curve, but a joy using Greg's that patch mimics the macOS acceleration curve. With this, I have been able to finally switch from synaptics and use libinput full-time. -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 101139] Acceleration still too slow with slow and slow-medium finger movements
https://bugs.freedesktop.org/show_bug.cgi?id=101139 Nate Graham changed: What|Removed |Added Summary|Acceleration still too slow |Acceleration still too slow |with medium finger |with slow and slow-medium |movements |finger movements -- You are receiving this mail because: You are the assignee for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 774065] Entry completion drop-down is misplaced on external monitor when on Wayland
https://bugzilla.gnome.org/show_bug.cgi?id=774065 --- Comment #13 from Guillaume Ayoub --- (In reply to Guillaume Ayoub from comment #12) > I've updated to Gtk+-3.22.28 (with Gnome libs 3.27.92), the bug is fixed for > me. Applying the patch even breaks my current installation. Forget that, sorry for the noise. I was using Xorg instead of Wayland. So, as said before, it's broken with the patch on Xorg and broken without the patch on Wayland. -- You are receiving this mail because: You are on the CC list for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
[Wayland-bugs] [Bug 774065] Entry completion drop-down is misplaced on external monitor when on Wayland
https://bugzilla.gnome.org/show_bug.cgi?id=774065 --- Comment #12 from Guillaume Ayoub --- I've updated to Gtk+-3.22.28 (with Gnome libs 3.27.92), the bug is fixed for me. Applying the patch even breaks my current installation. -- You are receiving this mail because: You are on the CC list for the bug.___ wayland-bugs mailing list wayland-bugs@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/wayland-bugs
