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 F40BCC433EF for ; Wed, 13 Apr 2022 17:12:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7DAA510E148; Wed, 13 Apr 2022 17:12:40 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id C5D7F10E138; Wed, 13 Apr 2022 17:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649869959; x=1681405959; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version:content-transfer-encoding; bh=3GHeqODc1hevgvCDKZ/t/z2DG0jedAb4Veh9wJu2RrY=; b=K0R2ZeMwXEey0oYAUGJmqRObDkgjFrMi3HAXZUkbrTVDJy7Jvbbo/QOK YI0FRwEH0KI54b+JPONWAoOu84qUvt5HcbjcPyLk8nhTT0T072/RGatRd xmwcPcgrkEk4mjH1dROptcpCJcG81bv0OEOAYR0N+SEV37FKyPENtFYNC dsOnqIBG7VT4GUXjmrfwIKi8rl0JD5dWCO18ozzmNpx+HkVdkEDgxngSm bK++A80gP7J+TISzBJ7cHhg6gTqaKyj9MOfHQC+GRhvIMrRsl6x/rbOL5 QzDQ8x01C9QUU/bvcn5Q+/SjTr0HBzaVAZbt8ZdGoDO/W/doDydpJi+ql A==; X-IronPort-AV: E=McAfee;i="6400,9594,10316"; a="262902765" X-IronPort-AV: E=Sophos;i="5.90,257,1643702400"; d="scan'208";a="262902765" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2022 10:12:25 -0700 X-IronPort-AV: E=Sophos;i="5.90,257,1643702400"; d="scan'208";a="573361082" Received: from jardanow-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.150.86]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2022 10:12:22 -0700 From: Jani Nikula To: =?utf-8?Q?Fran=C3=A7ois?= Valenduc , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org In-Reply-To: <0da21aec-d299-1834-99f3-9a598e4649f7@gmail.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <0da21aec-d299-1834-99f3-9a598e4649f7@gmail.com> Date: Wed, 13 Apr 2022 20:12:20 +0300 Message-ID: <87v8vcgb63.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Subject: Re: [Intel-gfx] commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens 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" On Wed, 13 Apr 2022, Fran=C3=A7ois Valenduc wr= ote: > Commit 15512021eb3975a8c2366e3883337e252bb0eee5=20 > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots=20 > to appears on the right upper corner of all console screens (see=20 > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).= =20 > git-bisect shows that this is the offending commit and if I revert it,=20 > the problem goes away. The problem still occurs with kernel 5.18-rc2 and= =20 > to all stable trees where it was applied. > Can somebody explains what happens ? > > The video card is the following: VGA compatible controller: Intel=20 > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00=20 > [VGA controller]) > > Please tell me if you need more info. That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF configuration on TGL/RKL"), adding Cc's. Please file a report at fdo gitlab [1] and attach dmesg etc. there. Thanks, Jani. [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs --=20 Jani Nikula, Intel Open Source Graphics Center 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 492A6C433FE for ; Wed, 13 Apr 2022 17:12:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6788C10E138; Wed, 13 Apr 2022 17:12:40 +0000 (UTC) Received: from mga14.intel.com (mga14.intel.com [192.55.52.115]) by gabe.freedesktop.org (Postfix) with ESMTPS id C5D7F10E138; Wed, 13 Apr 2022 17:12:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1649869959; x=1681405959; h=from:to:cc:subject:in-reply-to:references:date: message-id:mime-version:content-transfer-encoding; bh=3GHeqODc1hevgvCDKZ/t/z2DG0jedAb4Veh9wJu2RrY=; b=K0R2ZeMwXEey0oYAUGJmqRObDkgjFrMi3HAXZUkbrTVDJy7Jvbbo/QOK YI0FRwEH0KI54b+JPONWAoOu84qUvt5HcbjcPyLk8nhTT0T072/RGatRd xmwcPcgrkEk4mjH1dROptcpCJcG81bv0OEOAYR0N+SEV37FKyPENtFYNC dsOnqIBG7VT4GUXjmrfwIKi8rl0JD5dWCO18ozzmNpx+HkVdkEDgxngSm bK++A80gP7J+TISzBJ7cHhg6gTqaKyj9MOfHQC+GRhvIMrRsl6x/rbOL5 QzDQ8x01C9QUU/bvcn5Q+/SjTr0HBzaVAZbt8ZdGoDO/W/doDydpJi+ql A==; X-IronPort-AV: E=McAfee;i="6400,9594,10316"; a="262902765" X-IronPort-AV: E=Sophos;i="5.90,257,1643702400"; d="scan'208";a="262902765" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2022 10:12:25 -0700 X-IronPort-AV: E=Sophos;i="5.90,257,1643702400"; d="scan'208";a="573361082" Received: from jardanow-mobl1.ger.corp.intel.com (HELO localhost) ([10.249.150.86]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 Apr 2022 10:12:22 -0700 From: Jani Nikula To: =?utf-8?Q?Fran=C3=A7ois?= Valenduc , intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: Re: commit 15512021eb3975a8c2366e3883337e252bb0eee5 causes white spots in console screens In-Reply-To: <0da21aec-d299-1834-99f3-9a598e4649f7@gmail.com> Organization: Intel Finland Oy - BIC 0357606-4 - Westendinkatu 7, 02160 Espoo References: <0da21aec-d299-1834-99f3-9a598e4649f7@gmail.com> Date: Wed, 13 Apr 2022 20:12:20 +0300 Message-ID: <87v8vcgb63.fsf@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable 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: , Cc: Stanislav Lisovskiy Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Wed, 13 Apr 2022, Fran=C3=A7ois Valenduc wr= ote: > Commit 15512021eb3975a8c2366e3883337e252bb0eee5=20 > (15512021eb3975a8c2366e3883337e252bb0eee5) causes a lof of white spots=20 > to appears on the right upper corner of all console screens (see=20 > https://drive.google.com/file/d/13GabEvOIKSAj5yox6ybAZEDu3Ixncw5Q/view).= =20 > git-bisect shows that this is the offending commit and if I revert it,=20 > the problem goes away. The problem still occurs with kernel 5.18-rc2 and= =20 > to all stable trees where it was applied. > Can somebody explains what happens ? > > The video card is the following: VGA compatible controller: Intel=20 > Corporation WhiskeyLake-U GT2 [UHD Graphics 620] (rev 02) (prog-if 00=20 > [VGA controller]) > > Please tell me if you need more info. That's commit 15512021eb39 ("drm/i915: Workaround broken BIOS DBUF configuration on TGL/RKL"), adding Cc's. Please file a report at fdo gitlab [1] and attach dmesg etc. there. Thanks, Jani. [1] https://gitlab.freedesktop.org/drm/intel/wikis/How-to-file-i915-bugs --=20 Jani Nikula, Intel Open Source Graphics Center