From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 927C71991CA for ; Sat, 9 Nov 2024 14:54:41 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=140.211.166.183 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731164082; cv=none; b=VqszHenZF1kJ+FwF10y9LnsYjLj6YoQRHmNzWQiktPG10yYHfvGUOsrscQlzIClB3OCRdf6Mhdqe3LUxIJqKfkkWlr8LQcSm2TYuZ0Bh4ee1OzQEPflvEz3M4VRLvaySWJxFIBDvFUhU56PdpNLEmfbvkan/WMddMyJYZdp3tZI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731164082; c=relaxed/simple; bh=iYifo8ZvWHr/K4r81W2teRDYrrpPR7lszO+IvzWuG20=; h=From:To:Cc:Subject:In-Reply-To:References:Date:Message-ID: MIME-Version:Content-Type; b=bXp6rMWk5engB97y0y5R00kPnWMDjezkCAZkEEPKxIpKb8Zfiu+lYv5CRvXgeuiGRl/miE9tZAbti7gGZgkRGLyokbbblGFhHTBk/qh/DAWHbB10AKWpFQlEPgVB/48jAPEjMDgoFz1/L2JHWoICzLrwI64fWpOwUFvi2ylrpaI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org; spf=pass smtp.mailfrom=gentoo.org; arc=none smtp.client-ip=140.211.166.183 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gentoo.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gentoo.org From: =?utf-8?Q?Ulrich_M=C3=BCller?= To: "Linux regression tracking (Thorsten Leemhuis)" Cc: Ulrich =?utf-8?Q?M=C3=BCller?= , stable@vger.kernel.org, Linux regressions mailing list , He Lugang , Jiri Kosina Subject: Re: [REGRESSION] ThinkPad L15 Gen 4 touchpad no longer works In-Reply-To: (Linux regression tracking's message of "Sat, 9 Nov 2024 13:42:21 +0100") References: Date: Sat, 09 Nov 2024 15:54:36 +0100 Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable >>>>> On Sat, 09 Nov 2024, Linux regression tracking (Thorsten Leemhuis) wr= ote: > On 03.11.24 09:24, Ulrich M=C3=BCller 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. >>=20 >> I see the following in dmesg output; the first line was not there >> previously: >>=20 >> [ 2.129282] hid-multitouch 0018:27C6:01E0.0001: The byte is not expec= ted for fixing the report descriptor. It's possible that the touchpad firmw= are is not suitable for applying the fix. got: 9 >> [ 2.137479] input: GXTP5140:00 27C6:01E0 as /devices/platform/AMDI001= 0:00/i2c-0/i2c-GXTP5140:00/0018:27C6:01E0.0001/input/input10 >> [ 2.137680] input: GXTP5140:00 27C6:01E0 as /devices/platform/AMDI001= 0:00/i2c-0/i2c-GXTP5140:00/0018:27C6:01E0.0001/input/input11 >> [ 2.137921] hid-multitouch 0018:27C6:01E0.0001: input,hidraw0: I2C HI= D v1.00 Mouse [GXTP5140:00 27C6:01E0] on i2c-GXTP5140:00 >>=20 >> Hardware is a Lenovo ThinkPad L15 Gen 4. >>=20 >> The problem goes away when reverting this commit: >> https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commi= t/drivers/hid/hid-multitouch.c?id=3D251efae73bd46b097deec4f9986d926813aed744 > 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.