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Sat, 14 Aug 2021 12:46:29 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 304575204F; Sat, 14 Aug 2021 12:46:29 +0000 (GMT) Received: from osiris (unknown [9.145.44.44]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTPS id D2FF152051; Sat, 14 Aug 2021 12:46:28 +0000 (GMT) Date: Sat, 14 Aug 2021 14:46:27 +0200 From: Heiko Carstens To: Dave Airlie , Rodrigo Vivi Cc: Jani Nikula , Joonas Lahtinen , Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [BUG - BISECTED] display not detected anymore Message-ID: Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: nPgM4dBHirfyZ4kqfW7WhLMo7cZxL4sX X-Proofpoint-GUID: BzjyakpaPXQtwgKXtRg-yea5mK2AN-hV X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-08-14_02:2021-08-13, 2021-08-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 clxscore=1011 adultscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=999 lowpriorityscore=0 bulkscore=0 mlxscore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108140076 X-Mailman-Approved-At: Sat, 14 Aug 2021 13:47:15 +0000 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" Hello, I have Fedora 33 running, and with the Fedore kernel update from 5.11 series to 5.12 my external monitor was not detected anymore. Same is true with the Fedora supplied 5.13 kernel version. So I tried with vanilla kernel 5.11 and latest git head from Linus' tree. 5.11 works while latest git head does not. Bisecting the problem points to commit 32c3d9b0f51e ("Merge tag 'drm-intel-next-2021-01-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next"). Unfortunately it is a merge commit, so it looks like conflicting changes have been made in the parent branches. Hardware in use: - ThinkPad X1 Yoga 4th / Carbon 7th - Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz The Thinkpad is connected to a ThinkPad Thunderbolt 3 Dock with a Thunderbolt cable and a monitor (Eizo EV3285) is connected via Displayport to the docking station. The monitor is detected and works without any problems (4k@60HZ) before the above mentioned merge commit. With the commit and afterwards it is not detected anymore and only the Thinkpad builtin display can be used. Any idea what went wrong? I can provide more information, or test debug patches if wanted. Just let me know. Thanks, Heiko 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 X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A2CE9C4320E for ; Mon, 16 Aug 2021 09:58:16 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 7296B61B7B for ; Mon, 16 Aug 2021 09:58:16 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7296B61B7B Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.ibm.com Authentication-Results: mail.kernel.org; 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Sat, 14 Aug 2021 08:46:33 -0400 Received: from m0098421.ppops.net (m0098421.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 17ECh31E184167; Sat, 14 Aug 2021 08:46:33 -0400 Received: from ppma01fra.de.ibm.com (46.49.7a9f.ip4.static.sl-reverse.com [159.122.73.70]) by mx0a-001b2d01.pphosted.com with ESMTP id 3ae9w2ku09-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 14 Aug 2021 08:46:33 -0400 Received: from pps.filterd (ppma01fra.de.ibm.com [127.0.0.1]) by ppma01fra.de.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 17ECiFLr017259; Sat, 14 Aug 2021 12:46:31 GMT Received: from b06cxnps4076.portsmouth.uk.ibm.com (d06relay13.portsmouth.uk.ibm.com [9.149.109.198]) by ppma01fra.de.ibm.com with ESMTP id 3ae5f88ckh-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 14 Aug 2021 12:46:31 +0000 Received: from d06av21.portsmouth.uk.ibm.com (d06av21.portsmouth.uk.ibm.com [9.149.105.232]) by b06cxnps4076.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 17ECkTcq55902478 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Sat, 14 Aug 2021 12:46:29 GMT Received: from d06av21.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 304575204F; Sat, 14 Aug 2021 12:46:29 +0000 (GMT) Received: from osiris (unknown [9.145.44.44]) by d06av21.portsmouth.uk.ibm.com (Postfix) with ESMTPS id D2FF152051; Sat, 14 Aug 2021 12:46:28 +0000 (GMT) Date: Sat, 14 Aug 2021 14:46:27 +0200 From: Heiko Carstens To: Dave Airlie , Rodrigo Vivi Cc: Jani Nikula , Joonas Lahtinen , Daniel Vetter , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Message-ID: Content-Type: text/plain; charset=us-ascii Content-Disposition: inline X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: nPgM4dBHirfyZ4kqfW7WhLMo7cZxL4sX X-Proofpoint-GUID: BzjyakpaPXQtwgKXtRg-yea5mK2AN-hV X-Proofpoint-UnRewURL: 0 URL was un-rewritten MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.391, 18.0.790 definitions=2021-08-14_02:2021-08-13, 2021-08-14 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 phishscore=0 clxscore=1011 adultscore=0 impostorscore=0 priorityscore=1501 mlxlogscore=999 lowpriorityscore=0 bulkscore=0 mlxscore=0 suspectscore=0 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2107140000 definitions=main-2108140076 X-Mailman-Approved-At: Mon, 16 Aug 2021 09:58:06 +0000 Subject: [Intel-gfx] [BUG - BISECTED] display not detected anymore X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Hello, I have Fedora 33 running, and with the Fedore kernel update from 5.11 series to 5.12 my external monitor was not detected anymore. Same is true with the Fedora supplied 5.13 kernel version. So I tried with vanilla kernel 5.11 and latest git head from Linus' tree. 5.11 works while latest git head does not. Bisecting the problem points to commit 32c3d9b0f51e ("Merge tag 'drm-intel-next-2021-01-27' of git://anongit.freedesktop.org/drm/drm-intel into drm-next"). Unfortunately it is a merge commit, so it looks like conflicting changes have been made in the parent branches. Hardware in use: - ThinkPad X1 Yoga 4th / Carbon 7th - Intel(R) Core(TM) i5-8265U CPU @ 1.60GHz The Thinkpad is connected to a ThinkPad Thunderbolt 3 Dock with a Thunderbolt cable and a monitor (Eizo EV3285) is connected via Displayport to the docking station. The monitor is detected and works without any problems (4k@60HZ) before the above mentioned merge commit. With the commit and afterwards it is not detected anymore and only the Thinkpad builtin display can be used. Any idea what went wrong? I can provide more information, or test debug patches if wanted. Just let me know. Thanks, Heiko