Too high default sensitivity for ALPS GlidePoint TouchPad (Dell Latitude E5510)
Good morning ! I recently (nov 2020) installed Debian 10 on my computer and noticed that the touchpad was complicated to use because of a too high sensitivity. The problem was solved by adding a quirk with the pressure range 90:85 instead of the default pressure range of 15:12. I tried many couples of values and the pressure range 100:90 works really well (a bit like for the dell latitude E6220) but it blocks the scrolling with one finger on the side of the touchpad (indeed, the default scrolling zone is really narrow and as the sensitivity is reduced, the scrolling zone would need to be enlarged but I do not know how to do that). To my mind, on this computer, the side scrolling is more convenient than the scrolling with two fingers because the touchpad is quite small. So, I choose the couple 90:85 which is a good compomise beetween sensitivity and scrolling.
Steps to reproduce
Just install Debian 10 on a Dell Latitude E5510 and see...
- libinput version: 1.12.6-2+deb10u1
- hardware information:
- computer : Dell Latitude E5510
- touchpad : AlpsPS/2 Alps Glidepoint
- Libinput configuration settings (before any changes): in the file attached
- Libinput Measures that helped me a bit to define the range: in the file attached
- Content of the quirks created : in the file attached
- Libinput configuration settings which works well (after changes): in the file attached
libinput recordoutput: in the file attached: in the file attached
- UDEV information for the device: in the file attached
- The content of /sys/class/dmi/id/modalias: in the file attached
- Touchpad edge detector tool: I did not manage to run this tool (maybe because I am new on linux). For information, my touchpad measures 67x45 mm.