Bugzilla – Bug 1176033
touchpad don't work on Lenovo IdeaPad 3 (LNV81WE00)
Last modified: 2022-01-17 08:48:25 UTC
I recently purchased a lenovo IdeaPad 3 81WE pc and I report that unfortunately using the last available TW snapshot the touchpad is not recognized. I tried the solution proposed by Matt Warmerdam (https://bugs.launchpad.net/ubuntu/+source/linux-signed-hwe/+bug/1880172) which consists in adding the following to grub: "i8042.nopnp=1 pci=nocrs" and it seems to work. I also report this link: https://www.kernel.org/doc/html/v4.14/admin-guide/kernel-parameters.html, where it is indicated that if you need to use "nocrs" you must report the bug. Information on my pc can be found: https://paste.opensuse.org/31182987
I insert new link with information about the laptop (lspci -vv) without expiry date: https://paste.opensuse.org/8826153
Could you give the output of hwinfo? Rather upload to this Bugzilla please.
Created attachment 843098 [details] hwinfo
Created attachment 843099 [details] inxi
I'm sorry I was late in replying, but it's not a good time. I hope that what is provided is sufficient. thank you for your attention
Thanks. Could you try only with i8042.nopnp=1 option? If this suffices, we can add the quirk for the specific device in the input driver code.
And, if i8042.nopnp=1 works, please upload the kernel messages (output of dmesg) on both working and non-working cases (with and without the boot option), too.
Created attachment 843200 [details] dmesg with option
Created attachment 843201 [details] dmesg with no option
Hi Takashi Iwai, with option don't work. thank you for your attention
Hrm. If you pass both i8042.nopnp=1 and pci=nocrs, does it work reliably? If it works, could you give the hwinfo and the dmesg output from the working state?
Created attachment 843348 [details] output dmesg working
Created attachment 843349 [details] output hwinfo working
Alex, I apologize for the late response. Has anything changed since back then? There is a much newer kernel in TW now?
Miroslav Beneš, I thank you for your reply, but that pc is no longer in my possession.
Ok, thanks for the feedback and let me close then.