Re: Fwd: Kernel 6.4.4 breaks Elan Touchpad 1206

From: Dmitry Torokhov
Date: Mon Jul 24 2023 - 20:10:11 EST


On Tue, Jul 25, 2023 at 07:00:21AM +0700, Bagas Sanjaya wrote:
> Hi,
>
> I notice a regression report on Bugzilla [1]. Quoting from it:
>
> > Description:
> > When booting into Linux 6.4.4, system no longer recognizes touchpad input (confirmed with xinput). On the lts release, 6.1.39, the input is still recognized.
> >
> > Additional info:
> > * package version(s): Linux 6.4.4, 6.1.39
> > * Device: ELAN1206:00 04F3:30F1 Touchpad
> >
> > Steps to reproduce:
> > - Install 6.4.4 with Elan Touchpad 1206
> > - Reboot
> >
> > The issue might be related to bisected commit id: 7b63a88bb62ba2ddf5fcd956be85fe46624628b9
> > This is the only recent commit related to Elantech drivers I've noticed that may have broken the input.
>
> See Bugzilla for the full thread:
>
> To the reporter (Verot): Can you attach dmesg and lspci output?
>
> Anyway, I'm adding this regression to be tracked by regzbot:
>
> #regzbot introduced: 7b63a88bb62ba2 https://bugzilla.kernel.org/show_bug.cgi?id=217701
> #regzbot title: OOB protocol access fix breaks Elan Touchpad 1206

Please don't as ELAN1206:00 04F3:30F1 looks like I2C-HID and not PS/2
device that 7b63a88bb62ba2 would affect.

Thanks.

--
Dmitry