[Bug 1897553] Re: Palm detect pressure is too easy to trigger so that the cursor stalled
@sil2100 hello Lukasz, May I know who can help to create deb and upload to queue? Thanks, -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897553 Title: Palm detect pressure is too easy to trigger so that the cursor stalled To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1897553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1897553] Re: Palm detect pressure is too easy to trigger so that the cursor stalled
Sponsored for both groovy and focal. ** Also affects: libinput (Ubuntu Focal) Importance: Undecided Status: New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897553 Title: Palm detect pressure is too easy to trigger so that the cursor stalled To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1897553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1897553] Re: Palm detect pressure is too easy to trigger so that the cursor stalled
Upload debdiff. ** Changed in: libinput (Ubuntu) Status: New => In Progress ** Changed in: libinput (Ubuntu) Assignee: (unassigned) => Kai-Chuan Hsieh (kchsieh) ** Patch added: "debdiff for the new version" https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1897553/+attachment/5414916/+files/libinput_1.15.5-1ubuntu1.debdiff ** Description changed: [Impact] - * ALPS new i2c touchpads have capabilities for reporting ABS_PRESSURE and ABS_MT_PRESSURE event, - However, it is very easy to over the default palm detect by pressure threshold 130. When - the threshold is achieved, the cursor will be stalled, and not be able to keep following the - finger's movement. + * ALPS new i2c touchpads have capabilities for reporting ABS_PRESSURE and +ABS_MT_PRESSURE event, However, it is very easy to over the default +palm detect by pressure threshold 130. When the threshold is achieved, +the cursor will be stalled, and not be able to keep following the +finger's movement. [Test Case] * For touchpad vid 0488, and have pressure capabilities. - The pressure capability can be easily obtain by evtest tool, check the ABS event type. There - should be ABS_PRESSURE and ABS_MT_PRESSURE event. + The pressure capability can be easily obtain by evtest tool, there +should be ABS_PRESSURE and ABS_MT_PRESSURE event in ABS event type. Test step: Install libinput-tools 1. $ sudo apt install libinput-tools 2. $ sudo libinput measure touchpad-pressure - 3. Generally move the finger, the pressure max should not exceed the palm pressure detect - threshold + 3. Generally move the finger, the pressure max should not exceed the + palm pressure detect threshold [Regression Potential] * It only impacts ALPS i2c models * It won't impact the touchpad without capability to report pressure event. - * For those touchpad with pressure capability will make the palm detect pressure be less - sensitive. However, ALPS said its firmware can support firmware labeling palm detection, so it is - okay that the palm detect pressure become less sensitive. + * For those touchpad with pressure capability will make the palm detect +pressure be less sensitive. However, ALPS said its firmware can support +firmware labeling palm detection, so it is okay that the palm detect +pressure become less sensitive. [Other Info] * The upstream commit has merged https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/505 ** Tags added: oem-priority originate-from-1891472 somerville ** Tags added: originate-from-1891979 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897553 Title: Palm detect pressure is too easy to trigger so that the cursor stalled To manage notifications about this bug go to: https://bugs.launchpad.net/oem-priority/+bug/1897553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1897553] Re: Palm detect pressure is too easy to trigger so that the cursor stalled
** Description changed: [Impact] * ALPS new i2c touchpads have capabilities for reporting ABS_PRESSURE and ABS_MT_PRESSURE event, However, it is very easy to over the default palm detect by pressure threshold 130. When the threshold is achieved, the cursor will be stalled, and not be able to keep following the finger's movement. [Test Case] - * For touchpad with vid is 0488, and have pressure capabilities. + * For touchpad vid 0488, and have pressure capabilities. The pressure capability can be easily obtain by evtest tool, check the ABS event type. There should be ABS_PRESSURE and ABS_MT_PRESSURE event. Test step: Install libinput-tools 1. $ sudo apt install libinput-tools 2. $ sudo libinput measure touchpad-pressure 3. Generally move the finger, the pressure max should not exceed the palm pressure detect threshold [Regression Potential] * It only impacts ALPS i2c models * It won't impact the touchpad without capability to report pressure event. * For those touchpad with pressure capability will make the palm detect pressure be less sensitive. However, most firmware can support firmware labeling palm detection, so it is okay that the palm detect pressure become less sensitive. [Other Info] * The upstream commit has merged https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/505 ** Description changed: [Impact] * ALPS new i2c touchpads have capabilities for reporting ABS_PRESSURE and ABS_MT_PRESSURE event, However, it is very easy to over the default palm detect by pressure threshold 130. When the threshold is achieved, the cursor will be stalled, and not be able to keep following the finger's movement. [Test Case] * For touchpad vid 0488, and have pressure capabilities. The pressure capability can be easily obtain by evtest tool, check the ABS event type. There should be ABS_PRESSURE and ABS_MT_PRESSURE event. Test step: Install libinput-tools 1. $ sudo apt install libinput-tools 2. $ sudo libinput measure touchpad-pressure 3. Generally move the finger, the pressure max should not exceed the palm pressure detect threshold [Regression Potential] * It only impacts ALPS i2c models * It won't impact the touchpad without capability to report pressure event. * For those touchpad with pressure capability will make the palm detect pressure be less - sensitive. However, most firmware can support firmware labeling palm detection, so it is + sensitive. However, ALPS said its firmware can support firmware labeling palm detection, so it is okay that the palm detect pressure become less sensitive. [Other Info] * The upstream commit has merged https://gitlab.freedesktop.org/libinput/libinput/-/merge_requests/505 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1897553 Title: Palm detect pressure is too easy to trigger so that the cursor stalled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libinput/+bug/1897553/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
