Fedora 40 - IdeaPad Flex 5 14ALC05 - Touch screen not working #423
Description
The touch screen on this device does not work on the latest Fedora with a recent kernel, which includes the patch that supposedly fixed the issue for everyone a few years back.
Linux fedora 6.8.10-300.fc40.x86_64
I am facing the exact same issue as in this thread #218, where the hardware is clearly present however not being picked up by the driver. I have tried various distros and same deal.
Output of sudo find /sys/ -iname "*wacf*"
/sys/devices/platform/AMDI0010:00/i2c-0/i2c-WACF2200:00
/sys/devices/LNXSYSTM:00/LNXSYBUS:00/AMDI0010:00/WACF2200:00
/sys/bus/acpi/devices/WACF2200:00
/sys/bus/i2c/devices/i2c-WACF2200:00
Output of xinput --input on Wayland:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ xwayland-pointer:10 id=6 [slave pointer (2)]
⎜ ↳ xwayland-relative-pointer:10 id=7 [slave pointer (2)]
⎜ ↳ xwayland-pointer-gestures:10 id=8 [slave pointer (2)]
⎣ Virtual core keyboard id=3 [master keyboard (2)]
↳ Virtual core XTEST keyboard id=5 [slave keyboard (3)]
↳ xwayland-keyboard:10 id=9 [slave keyboard (3)]
On X11:
⎡ Virtual core pointer id=2 [master pointer (3)]
⎜ ↳ Virtual core XTEST pointer id=4 [slave pointer (2)]
⎜ ↳ MSFT0001:00 06CB:CE2D Touchpad id=15 [slave pointer (2)]
⎜ ↳ MSFT0001:00 06CB:CE2D Mouse id=16 [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)]
↳ Video Bus id=7 [slave keyboard (3)]
↳ Power Button id=8 [slave keyboard (3)]
↳ Sleep Button id=9 [slave keyboard (3)]
↳ USB Keyboard id=10 [slave keyboard (3)]
↳ USB Keyboard System Control id=11 [slave keyboard (3)]
↳ Ideapad extra buttons id=14 [slave keyboard (3)]
↳ AT Translated Set 2 keyboard id=17 [slave keyboard (3)]
↳ USB Keyboard Consumer Control id=18 [slave keyboard (3)]
From all the reading I've done, I believe that MSFT0001:00 06CB:CE2D Mouse is supposed to be the touch screen, but I have no idea how to force detection.