Timeline for How to make a recent laptop touchpad work on PC with an external PS/2 USB adapter
Current License: CC BY-SA 4.0
12 events
| when toggle format | what | by | license | comment | |
|---|---|---|---|---|---|
| Dec 6, 2023 at 2:29 | history | edited | sdrkyj | CC BY-SA 4.0 |
edited body
|
| Dec 5, 2023 at 7:52 | comment | added | the busybee | My next step would be to connect an oscilloscope to the pins 9 and 10 and watch the lines while the touchpad is powered and I use it (tap, drag, ...). I would expect the typical transmissions. With a multimeter, you will not catch this. Only if I made sure that this happens, I will take the next step and connect the adapter. | |
| Dec 5, 2023 at 6:37 | comment | added | Marcus Müller | @sdrkyja multimeter is not a tool with which you can tell different digital buses apart | |
| Dec 5, 2023 at 1:45 | comment | added | sdrkyj | According to an article, I tested the resistance and voltage of pins. The result seems same to the pinout in schematics of T470. @dandavis | |
| Dec 5, 2023 at 1:42 | history | edited | sdrkyj | CC BY-SA 4.0 |
edited body
|
| Dec 5, 2023 at 1:40 | history | edited | sdrkyj | CC BY-SA 4.0 |
deleted 182 characters in body
|
| Dec 2, 2023 at 22:29 | comment | added | dandavis | power it and measure the current, does it seem reasonable with your assumed pinout? If so, then you might have a non-ps2-compat part; it could be bespoke to the laptop, or a custom USB interface, or even SPI or something. Try a logic analyzer and see if it can detect the signal format. | |
| Dec 2, 2023 at 15:08 | history | edited | brhans | CC BY-SA 4.0 |
deleted 1 character in body
|
| Dec 2, 2023 at 14:14 | history | edited | sdrkyj | CC BY-SA 4.0 |
added 10 characters in body
|
| Dec 2, 2023 at 12:01 | history | edited | sdrkyj | CC BY-SA 4.0 |
added 35 characters in body
|
| S Dec 2, 2023 at 0:52 | review | First questions | |||
| Dec 2, 2023 at 4:36 | |||||
| S Dec 2, 2023 at 0:52 | history | asked | sdrkyj | CC BY-SA 4.0 |