From: "Ulrich Müller" <ulm@gentoo.org>
To: stable@vger.kernel.org
Cc: regressions@lists.linux.dev, He Lugang <helugang@uniontech.com>,
Jiri Kosina <jkosina@suse.com>
Subject: [REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works
Date: Sun, 03 Nov 2024 09:24:59 +0100 [thread overview]
Message-ID: <uikt4wwpw@gentoo.org> (raw)
After upgrading from 6.6.52 to 6.6.58, tapping on the touchpad stopped
working. The problem is still present in 6.6.59.
I see the following in dmesg output; the first line was not there
previously:
[ 2.129282] hid-multitouch 0018:27C6:01E0.0001: The byte is not expected for fixing the report descriptor. It's possible that the touchpad firmware is not suitable for applying the fix. got: 9
[ 2.137479] input: GXTP5140:00 27C6:01E0 as /devices/platform/AMDI0010:00/i2c-0/i2c-GXTP5140:00/0018:27C6:01E0.0001/input/input10
[ 2.137680] input: GXTP5140:00 27C6:01E0 as /devices/platform/AMDI0010:00/i2c-0/i2c-GXTP5140:00/0018:27C6:01E0.0001/input/input11
[ 2.137921] hid-multitouch 0018:27C6:01E0.0001: input,hidraw0: I2C HID v1.00 Mouse [GXTP5140:00 27C6:01E0] on i2c-GXTP5140:00
Hardware is a Lenovo ThinkPad L15 Gen 4.
The problem goes away when reverting this commit:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/hid/hid-multitouch.c?id=251efae73bd46b097deec4f9986d926813aed744
See also Gentoo bug report: https://bugs.gentoo.org/942797
next reply other threads:[~2024-11-03 8:25 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-03 8:24 Ulrich Müller [this message]
2024-11-09 10:27 ` [REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works Ulrich Müller
2024-11-09 12:42 ` Linux regression tracking (Thorsten Leemhuis)
2024-11-09 14:54 ` Ulrich Müller
2024-11-11 10:23 ` Thorsten Leemhuis
2024-11-25 8:22 ` Benjamin Tissoires
2024-12-09 20:03 ` Jiri Kosina
2024-12-10 3:04 ` "[REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works" WangYuli
2024-12-12 8:45 ` WangYuli
2024-12-12 8:56 ` Jiri Kosina
2024-12-12 9:01 ` WangYuli
2024-12-12 9:09 ` Jiri Kosina
2024-12-12 9:14 ` Ulrich Müller
2024-12-12 9:23 ` Jiri Kosina
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=uikt4wwpw@gentoo.org \
--to=ulm@gentoo.org \
--cc=helugang@uniontech.com \
--cc=jkosina@suse.com \
--cc=regressions@lists.linux.dev \
--cc=stable@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).