No LSB modules are available. Distributor ID: Ubuntu Description: Ubuntu 25.04 Release: 25.04 Codename: plucky
Hi guys, Maybe a solution already exist in kernel. A patch has been commit to kernel this year.looking at https://patchwork.ozlabs.org/project/linux-i2c/patch/[email protected] Use follow code i test my kernel(6.14.0,download use apt source) at past 20 days, I found this issue has disappeared, But if i switch to ubuntu official kernel(6.14.0-15-generic) see it again. static const struct acpi_device_id i2c_acpi_force_100khz_device_ids[] = { /* * When a 400KHz freq is used on this model of ELAN touchpad in Linux, * excessive smoothing (similar to when the touchpad's firmware detects * a noisy signal) is sometimes applied. As some devices' (e.g, Lenovo * V15 G4) ACPI tables specify a 400KHz frequency for this device and * some I2C busses (e.g, Designware I2C) default to a 400KHz freq, * force the speed to 100KHz as a workaround. * * For future investigation: This problem may be related to the default * HCNT/LCNT values given by some busses' drivers, because they are not * specified in the aforementioned devices' ACPI tables, and because * the device works without issues on Windows at what is expected to be * a 400KHz frequency. The root cause of the issue is not known. */ { "ELAN06FA", 0 }, + { "DLL0945", 0 }, {} }; -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2067657 Title: Cursor response to touchpad sporadically becomes laggy To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/2067657/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
