Too fast scroll speed using Touchpad 2-finger scroll ONLY in QEMU virtual Ubuntu 24.04.
On Dell Vostro 16 5630 laptop:
two systems:
- host (Ubuntu 24.04,
libinput --version1.25.0) - QEMU virtual (Ubuntu 24.04,
libinput --version1.25.0).
Two scroll devices:
- Touchpad 2-finger scroll
- Bluetooth Asus mouse wheel scroll.
Scroll speed test summary:
Host Ubuntu:
touchpad 2-finger scroll - good
mouse wheel scroll - good
QEMU virtual Ubuntu:
touchpad 2-finger scroll - too fast (too fast also using sudo libinput debug-gui)
mouse wheel scroll - good
Host Ubuntu 24.04.2 LTS (works as expected on host system via two finger scroll on touchpad):
$ echo $XDG_SESSION_TYPE
x11
$ xinput list
⎡ Virtual core pointer id=2 [master pointer (3)]
<...>
⎜ ↳ VEN_27C6:00 27C6:0D45 Touchpad id=10 [slave pointer (2)]
<...>
$ xinput list-props 10
<...>
libinput Scrolling Pixel Distance (377): 15
libinput Scrolling Pixel Distance Default (378): 15
<...>
QEMU Ubuntu 24.04.2 LTS (PROBLEM too fast scroll with two finger scroll via touchpad, but works the same as in the host if using the bluetooth Asus mouse scroll):
$ echo $XDG_SESSION_TYPE
touchpad scroll too fast on both: wayland and x11 (changed to x11 via uncommenting WaylandEnable=false in sudo nano /etc/gdm3/custom.conf and sudo restart)
$ xinput list:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ VirtualPS/2 VMware VMMouse id=8 [slave pointer (2)]
⎜ ↳ VirtualPS/2 VMware VMMouse id=9 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ Power Button id=6 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=7 [slave keyboard (3)]
Related problem:
Related questions:
- How to change 2-finger touchpad scroll speed on Ubuntu 22.04
- In my case not the mouse but touchpad How can I adjust the mouse scroll speed?
Interesting info:
