From: "Ulrich Müller" <ulm@gentoo.org>
To: "Linux regression tracking (Thorsten Leemhuis)"
<regressions@leemhuis.info>
Cc: "Ulrich Müller" <ulm@gentoo.org>,
stable@vger.kernel.org,
"Linux regressions mailing list" <regressions@lists.linux.dev>,
"He Lugang" <helugang@uniontech.com>,
"Jiri Kosina" <jkosina@suse.com>
Subject: Re: [REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works
Date: Sat, 09 Nov 2024 15:54:36 +0100 [thread overview]
Message-ID: <ucyj4h2z7@gentoo.org> (raw)
In-Reply-To: <a4b1bae4-5235-4f19-bcdb-5ed9b67449b1@leemhuis.info> (Linux regression tracking's message of "Sat, 9 Nov 2024 13:42:21 +0100")
>>>>> On Sat, 09 Nov 2024, Linux regression tracking (Thorsten Leemhuis) wrote:
> On 03.11.24 09:24, Ulrich Müller wrote:
>> 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
> Thx for the report. Is this a 6.6.y specific thing, or does it happen
> with 6.12-rc6 or later as well? And if it does: does the revert fix it
> there, too?
It still happens with 6.12-rc6, and the revert fixes it.
next prev parent reply other threads:[~2024-11-09 14:54 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-11-03 8:24 [REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works Ulrich Müller
2024-11-09 10:27 ` Ulrich Müller
2024-11-09 12:42 ` Linux regression tracking (Thorsten Leemhuis)
2024-11-09 14:54 ` Ulrich Müller [this message]
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
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