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=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_1 autolearn=ham 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 E9473CA90AF for ; Wed, 13 May 2020 12:29:48 +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 C289F206B7 for ; Wed, 13 May 2020 12:29:48 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org C289F206B7 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 18FDB6E217; Wed, 13 May 2020 12:29:48 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9A38D6E217 for ; Wed, 13 May 2020 12:29:46 +0000 (UTC) IronPort-SDR: mslmK3rfRuCCTe8bojsXfRmjVJQb1Jz8TMYiQml7l9/b8etpNEPPqA93pycdloxw3d8d799nVz Ipj0sA+NwQTw== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 13 May 2020 05:29:46 -0700 IronPort-SDR: R4aSYAhjEWA8mzD5F3Km/XvnrzzQ4fuMw8KDVXCWZPrS3cS2H6BxKWEwywHXWGj9PNtzl9E+XA uzvgNW7Jg3SA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.73,387,1583222400"; d="scan'208";a="280486575" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by orsmga002.jf.intel.com with SMTP; 13 May 2020 05:29:44 -0700 Received: by stinkbox (sSMTP sendmail emulation); Wed, 13 May 2020 15:29:43 +0300 Date: Wed, 13 May 2020 15:29:43 +0300 From: Ville =?iso-8859-1?Q?Syrj=E4l=E4?= To: "Massimo B." Subject: Re: [drm] Reducing the compressed framebuffer size Message-ID: <20200513122943.GC6112@intel.com> References: <56fb2eaf4241f80799f25733c242489e00c6021a.camel@gmx.net> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <56fb2eaf4241f80799f25733c242489e00c6021a.camel@gmx.net> X-Patchwork-Hint: comment User-Agent: Mutt/1.10.1 (2018-07-13) 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: dri-devel@lists.freedesktop.org Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" On Tue, May 12, 2020 at 03:36:01PM +0200, Massimo B. wrote: > Hello everybody, > = > since Kernel 5.6.5 I encounter many syslog lines like > = > [kernel] [drm] Reducing the compressed framebuffer size. This may lead to= less power savings than a non-reduced-size. Try to increase stolen memory = size if available in BIOS. > - Last output repeated 4 times - > = > I found some explanation at: > https://wiki.archlinux.org/index.php/intel_graphics#Framebuffer_compressi= on_(enable_fbc) > But why do I get this with a i7-4790 Haswell, which is not pre-Sandy? FBC is a thing for all platform generations. > = > Anyway I followed the hint and set > = > # cat /etc/modprobe.d/i915.conf > options i915 enable_fbc=3D0 > = > After reboot the setting seems active: > = > # cat /sys/module/i915/parameters/enable_fbc > 0 > = > But I still get the same logs. Which BIOS setting is responsible, how can= I fix > that? Is there a better place to ask? There is a patch on its way somewhere to linus/stable trees to eliminate this dmesg spam: https://cgit.freedesktop.org/drm-intel/commit/?id=3D6b7fc6a3e6af4ff5773949d= 0fed70d8e7f68d5ce But it's a bit strange you still get it with fbc disabled. The logic for when to allocate the cfb may be a bit busted atm... > = > # lspci |grep VGA > 00:02.0 VGA compatible controller: Intel Corporation Xeon E3-1200 v3/4th = Gen Core Processor Integrated Graphics Controller (rev 06) > = > # grep name /proc/cpuinfo |tail -n1 > model name : Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz > = > Best regards, > Massimo > = > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- = Ville Syrj=E4l=E4 Intel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel