From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 4DC12C43217 for ; Sat, 26 Nov 2022 21:51:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BB2C510E187; Sat, 26 Nov 2022 21:51:27 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5D63310E187 for ; Sat, 26 Nov 2022 21:51:23 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id C470360B3A for ; Sat, 26 Nov 2022 21:51:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPS id 3101BC433C1 for ; Sat, 26 Nov 2022 21:51:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1669499482; bh=e9IS6LQvoL4ym1uM+pEEOjzcuXa36x/AkTykSp+iqKw=; h=From:To:Subject:Date:From; b=lS6CEhxBY9nnVrCmRuaaKIpWnwqAOgPiUYESndMt6I6noAeGmUL43muZsm7AtRW/n ibMmATUyfOdUQfd1g0StN+AHmKnLod+fB5N9AQqov8fOf3yysfJSwg8jiS4zqQyc9l 9end5YQ5qK1gXzDUmBtJZ4Q7aMBRTl39a7I1KteU9L966KzRSFC/1LbG71n8xRswAz Wabt/8MeyUUSO/TdfkoOysmFPt1qGnEurKpUF4rsy/r1Hscq4OF2hty7IG4LuD916s H0qotpMeqjtK5FeoYd9+NaTPXmpAwareuzpuIwCrx4/wDGs5vmNkNhMWLlSr6+rpsi 6xuh2yMz42lKA== Received: by aws-us-west-2-korg-bugzilla-1.web.codeaurora.org (Postfix, from userid 48) id 1C3EBC433E7; Sat, 26 Nov 2022 21:51:22 +0000 (UTC) From: bugzilla-daemon@kernel.org To: dri-devel@lists.freedesktop.org Subject: [Bug 216745] New: Kernel 6.1 breaks Thinkpad T14 Gen 2 AMD connection to USB-C dock Gen 2 with kernel Null pointer Date: Sat, 26 Nov 2022 21:51:21 +0000 X-Bugzilla-Reason: None X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: AssignedTo drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Product: Drivers X-Bugzilla-Component: Video(DRI - non Intel) X-Bugzilla-Version: 2.5 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: ezou@outlook.com X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P1 X-Bugzilla-Assigned-To: drivers_video-dri@kernel-bugs.osdl.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version cf_kernel_version rep_platform op_sys cf_tree bug_status bug_severity priority component assigned_to reporter cf_regression attachments.created Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugzilla.kernel.org/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" https://bugzilla.kernel.org/show_bug.cgi?id=3D216745 Bug ID: 216745 Summary: Kernel 6.1 breaks Thinkpad T14 Gen 2 AMD connection to USB-C dock Gen 2 with kernel Null pointer Product: Drivers Version: 2.5 Kernel Version: 6.1.0-rc6 Hardware: AMD OS: Linux Tree: Mainline Status: NEW Severity: normal Priority: P1 Component: Video(DRI - non Intel) Assignee: drivers_video-dri@kernel-bugs.osdl.org Reporter: ezou@outlook.com Regression: No Created attachment 303299 --> https://bugzilla.kernel.org/attachment.cgi?id=3D303299&action=3Dedit journal output with DRM debug set to 0xf Full description of the problem: Connecting T14 Gen 2 AMD to Thinkpad USB C Dock Gen 2 via USB-C on DP Alt m= ode. Since kernel 6.1.0-rc4 (and rc 5, rc 6), once the usb c cable is plug in, t= he dock and computer detected the connection by blinking on both power buttons= (on laptop and dock), and then the laptop became completely unresponsive, has t= o be powered off by long press on power button. Based on the journal output it l= ooks like something about DRM and AMDGPU, and Kernel null pointer (and oops message). Keywords:=20 DRM, AMDGPU Most recent kernel version which did not have the bug: Tried 5.19.17, 6.0.10 and it's working. A journal output with DRM debug value set to 0xf is attached. --=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.=