Bug 16041
| Summary: | Multitouch support not available for Synaptics touchpads | ||
|---|---|---|---|
| Product: | Drivers | Reporter: | RussianNeuroMancer (russianneuromancer) |
| Component: | Input Devices | Assignee: | drivers_input-devices |
| Status: | RESOLVED CODE_FIX | ||
| Severity: | normal | CC: | alex.hunziker, dmitry.torokhov, hokasch, rydberg |
| Priority: | P1 | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Kernel Version: | Subsystem: | ||
| Regression: | No | Bisected commit-id: | |
Unfortunately Synaptics is not willing to disclose their multitouch protocol yet, si you either have to wait or try to reverse-engineer the protocol yourself by observing behavior of Windows driver. Maybe try set up KVM and Windowes as a guest and pass-through PS/2 stream form the guest directly to the PS/2 port via serio_raw driver... Fixed in 2.6.38. |
Multitouch support not work on Lenovo Y550 Laptop. # evtest /dev/input/event11 Input driver version is 1.0.0 Input device ID: bus 0x11 vendor 0x2 product 0x7 version 0x1b1 Input device name: "SynPS/2 Synaptics TouchPad" Supported events: Event type 0 (Sync) Event type 1 (Key) Event code 272 (LeftBtn) Event code 273 (RightBtn) Event code 274 (MiddleBtn) Event code 325 (ToolFinger) Event code 330 (Touch) Event type 3 (Absolute) Event code 0 (X) Value 1 Min 1472 Max 5472 Event code 1 (Y) Value 5855 Min 1408 Max 4448 Event code 24 (Pressure) Value 0 Min 0 Max 255 Event code 28 (Tool Width) Value 0 Min 0 Max 0 Multi-touch work in Windows with original driver. I file Xorg/Input/Synaptics bug, but they say it's kernel issue: https://bugs.freedesktop.org/show_bug.cgi?id=28167 What information I can provide to help solve this driver issue?