From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 448B645DF47 for ; Sat, 10 Oct 2026 12:58:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791637085; cv=none; b=bY4xM+b57xEFwGSoHrR7NDUly6PE5qyu0pJyYBAjKkITutwI6mPqy494m/HkSoHVGFB0clYxpsdTScokuv8z3Kcy1WMNUsY4qTvZu1nx/uEUL6v8+YeW/qgCoEKtoaM/llr4X8+9swxc1pR29rLhyq8YbGuIKdsbspDqKyNHQBI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791637085; c=relaxed/simple; bh=dvZlOax+q0x2TEypui2vn2/1Do/DhJWxz5vO2wdFqAQ=; h=From:To:Subject:Date:Message-ID:In-Reply-To:References: Content-Type:MIME-Version; b=MxfLeg78hv7w6uHmhCTA26l54M98BZAMs6QKPq3UJEk8W9newdBau/4isY4u0SeQ1RLqAm0QtDiN//5nmcaUeN2xe8Zx4LAs+GJHkGTNhR/3Sa7BbYAhdMFsZ463WfeQZfN4uaI5zTSBHkDkeeJfIoVtEpOUkAdC7VnZ66srPU0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=rRPMXS6S; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="rRPMXS6S" Received: by smtp.kernel.org (Postfix) with ESMTPS id BBABBC2BCF7 for ; Sat, 10 Oct 2026 12:58:04 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1791637084; bh=dvZlOax+q0x2TEypui2vn2/1Do/DhJWxz5vO2wdFqAQ=; h=From:To:Subject:Date:In-Reply-To:References:From; b=rRPMXS6Sjgd29Onmk6z8jAEp+XpzPHLh/LgnqHnxVkJzEe1spfHc+IDzWGds8nHSI pcFLzSpioNc75+JzHMyedXodyJH2SVWRWBr6P4L28/DoteC/W4tfnpahL2Mo1qTgst JIDDq0Oe69vzUTU1kxMBav8lPibDG1r4l+ktSjyczD3VVGiGfPtk6F74BKz/po/5Ui zjfTHWWvKuv+utURT+bfAZ0MwEbb8+ycaFOVuIVsuHslTk8rOH8mTWljhQTBlS/ofb LCR0+wBI7ZNRMEfFaifjXXTuXqLczj5SuZYWTrQ1hmeF7IKw8fZuL2Bq/TKkcZIsGS CuIwkw6ndmM5w== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 95357C3279F; Sat, 10 Oct 2026 12:58:04 +0000 (UTC) From: bugzilla-daemon@kernel.org To: linux-usb@vger.kernel.org Subject: [Bug 222021] Not charging via USB C after Kernel update "underpowered" Dell XPS + workaround Date: Sat, 10 Oct 2026 12:58:04 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: AssignedTo drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: USB X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: splint.em85@gmail.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: drivers_usb@kernel-bugs.kernel.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 https://bugzilla.kernel.org/show_bug.cgi?id=3D222021 --- Comment #7 from SpliNter (splint.em85@gmail.com) --- Tested 7.3.0-rc6 with the patch. Kernel: Arch linux-mainline 7.3rc6-2 with the patch added, default config (uname: 7.3.0-rc6-2-mainline-dirty). Summary: charging works on plug-in with and without the patch (as it already did on 7.2.9). The remaining symptoms (UCSI error, status flapping) are not changed by the patch. - AC plugged in while running (~352 s uptime): "ucsi_acpi USBC000:00: unkno= wn error 0" + "UCSI_GET_PDOS failed (-5)" appears twice (352.38 s and 352.87 s= ). Unpatched 7.3.0-rc6 had it once at the same event (396.2 s). - No UCSI error at boot this time (unpatched: one at 9.2 s). This is a sing= le boot, so I would not read much into it. - udevadm monitor --subsystem-match=3Dpower_supply: identical to the unpatc= hed run: 4 changes of ucsi-source-psy-USBC000:003 within ~6 s, 1x AC, 2x BAT0. - The desktop battery status flaps on plug-in: "plugged in but discharging"= -> "not charging" -> "charging" (3 states). BAT0 ends up as "Charging", so the battery does charge, which fixes my issu= e. Unpatched 7.3.0-rc6 and 7.2.9 behave the same. Thank you for the effort. --=20 You may reply to this email to add a comment. You are receiving this mail because: You are watching the assignee of the bug.=