From owner-svn-src-head@freebsd.org Fri Apr 17 16:11:02 2020 Return-Path: Delivered-To: svn-src-head@mailman.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mailman.nyi.freebsd.org (Postfix) with ESMTP id 4D6D82BF2EC for ; Fri, 17 Apr 2020 16:11:02 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: from mail-qk1-x741.google.com (mail-qk1-x741.google.com [IPv6:2607:f8b0:4864:20::741]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) server-signature RSA-PSS (4096 bits) client-signature RSA-PSS (2048 bits) client-digest SHA256) (Client CN "smtp.gmail.com", Issuer "GTS CA 1O1" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id 493h0P4bGLz4BRT for ; Fri, 17 Apr 2020 16:11:01 +0000 (UTC) (envelope-from wlosh@bsdimp.com) Received: by mail-qk1-x741.google.com with SMTP id c63so2979425qke.2 for ; Fri, 17 Apr 2020 09:11:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bsdimp-com.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=eRhtmfYNE1k9QIWDLev/HYg8LCEycU/OiEm0o+N1vLc=; b=NoW084ODU/DbjhlojhX0XegwrTK4ExQKrLwpNVyvq8/V8gwtRcIm7N5HulHmawvkcd yxKzxvGgN9jXyj7Kdtluowu9CbXaAahGkLsPhkG+cqPSOe8AOJMcUN4nNiBp0ZxJJkxS J0SwWyFT6NdJuJokZ4ZJn3Pfl/qsUevKPBy9cdSxsRUj2zbCZ+qe9mit3Jsdj1CASh6J jm5j7GGtyn/KimV8ykIBMwc91RdfK3aV9ntMVHPlT93hHsj23WLBMqUQ0p+Y4OHqcpd0 cCzUFOS+YNNt6H15lWRqG4OLXcMHBT3658kmDxLjxmZxZ4zepAjlkkMt+KGd2P0XR2o8 OBqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=eRhtmfYNE1k9QIWDLev/HYg8LCEycU/OiEm0o+N1vLc=; b=QKMoMYJSZVAQezXNVuWoKJgha2TXDQuwKkudGN95hUGTA+zH9eER+CCO8ZWZOVA46j XT3auSYa5cSK1kv+21eaCND/P7NbcVlluIAGuT7Qki8leKH01W5mtE/z7F2I7NSpqo1s QG7WqsxBqqFCp7SImTQrtrFsizw55V+ArL5WSihYDkrOHBNaeOJoL6yDgrz3OMLdog8M QimoCETKgzaW7Zf38LxnUXEwJRSQisAkUuJfaqF7Kn1i8L1sB6E0M2tgbnJAXsIxEb2t WImpb4M80TIJnZPKOchTnG/Rr1jtWY8Z1NFaLH/tqE6RmtGbmlJ3YObgjw/ynTxabBQJ faaA== X-Gm-Message-State: AGi0PuZj1B1RZqHhPuU706RLH4YZJCBNB02FafOn6boJG+NL7yfWk472 +PDl18JMe5/PIv9kvO4uPFP4jNlW/zVKpm5cdLxcnQ== X-Google-Smtp-Source: APiQypIuN/PZcgrL2/hVSV1MgKVjYSZN2qrLO+07hBpIM+jqz6qP+duPluN/NhsjywwwpmCKEiJqaK1LhJUITUi8mp0= X-Received: by 2002:a37:7143:: with SMTP id m64mr4006342qkc.215.1587139860762; Fri, 17 Apr 2020 09:11:00 -0700 (PDT) MIME-Version: 1.0 References: <202004162156.03GLuqgw058432@repo.freebsd.org> <20200417062636.GC24371@FreeBSD.org> In-Reply-To: From: Warner Losh Date: Fri, 17 Apr 2020 10:10:49 -0600 Message-ID: Subject: Re: svn commit: r360025 - head/sys/dev/acpica To: Colin Percival Cc: Alexey Dokuchaev , Oliver Pinter , "svn-src-head@freebsd.org" , "svn-src-all@freebsd.org" , "src-committers@freebsd.org" X-Rspamd-Queue-Id: 493h0P4bGLz4BRT X-Spamd-Bar: + Authentication-Results: mx1.freebsd.org; dkim=pass header.d=bsdimp-com.20150623.gappssmtp.com header.s=20150623 header.b=NoW084OD; dmarc=none; spf=none (mx1.freebsd.org: domain of wlosh@bsdimp.com has no SPF policy when checking 2607:f8b0:4864:20::741) smtp.mailfrom=wlosh@bsdimp.com X-Spamd-Result: default: False [1.82 / 15.00]; ARC_NA(0.00)[]; TO_DN_EQ_ADDR_SOME(0.00)[]; R_DKIM_ALLOW(-0.20)[bsdimp-com.20150623.gappssmtp.com:s=20150623]; RCVD_TLS_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-0.75)[-0.752,0]; TAGGED_RCPT(0.00)[]; PREVIOUSLY_DELIVERED(0.00)[svn-src-head@freebsd.org]; DMARC_NA(0.00)[bsdimp.com]; MIME_GOOD(-0.10)[multipart/alternative,text/plain]; URI_COUNT_ODD(1.00)[3]; RCPT_COUNT_FIVE(0.00)[6]; NEURAL_SPAM_MEDIUM(0.23)[0.231,0]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DKIM_TRACE(0.00)[bsdimp-com.20150623.gappssmtp.com:+]; RCVD_IN_DNSWL_NONE(0.00)[1.4.7.0.0.0.0.0.0.0.0.0.0.0.0.0.0.2.0.0.4.6.8.4.0.b.8.f.7.0.6.2.list.dnswl.org : 127.0.5.0]; R_SPF_NA(0.00)[]; FORGED_SENDER(0.30)[imp@bsdimp.com,wlosh@bsdimp.com]; MIME_TRACE(0.00)[0:+,1:+,2:~]; IP_SCORE(-0.16)[ip: (0.01), ipnet: 2607:f8b0::/32(-0.33), asn: 15169(-0.43), country: US(-0.05)]; ASN(0.00)[asn:15169, ipnet:2607:f8b0::/32, country:US]; FROM_NEQ_ENVFROM(0.00)[imp@bsdimp.com,wlosh@bsdimp.com]; SUSPICIOUS_RECIPS(1.50)[]; RCVD_COUNT_TWO(0.00)[2] Content-Type: text/plain; charset="UTF-8" X-Content-Filtered-By: Mailman/MimeDel 2.1.29 X-BeenThere: svn-src-head@freebsd.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: SVN commit messages for the src tree for head/-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 17 Apr 2020 16:11:02 -0000 On Fri, Apr 17, 2020 at 9:54 AM Colin Percival wrote: > On 2020-04-16 23:26, Alexey Dokuchaev wrote: > > On Thu, Apr 16, 2020 at 03:12:15PM -0700, Colin Percival wrote: > >> On 2020-04-16 15:05, Oliver Pinter wrote: > >>> On Thursday, April 16, 2020, Colin Percival >>> > wrote: > >>> Log: > >>> Alert devd when acpi_video brightness changes > >>> > >>> Please add this to release notes! > >> > >> I considered that, but so far I don't have any evidence that other > >> systems exist with the same half-working ACPI. Unless you're aware of > >> people who are seeing the same "hw.apci.video.lcd0.brightness changes > >> but thebacklight doesn't" syndrome? > > > > So this is more like a work-around for the problem which lies elsewhere: > > something is missing in acpi_video(4) or perhaps we need a (nonexistent) > > acpi_dell(4)? In this case, shouldn't it be disabled by default, or at > > least be toggable since as you say, evidently just a minority of systems > > exist with the same half-working ACPI? > > Having occasional extra messages coming through devctl(4) is harmless; by > default devd will just drop them on the floor since there isn't anything > configured to do with them. > > In an upcoming change to the graphics/intel-backlight port (if/when someone > merges my patch into their github repo...) I'll be providing a > configuration > file which can be copied into /usr/local/etc/devd/ in order to hook these > messages up to the intel-backlight utility. > > So... yes, for practical purposes this is disabled by default. > There's no harm to these, so I agree... there may also be some novel uses :) Warner > -- > Colin Percival > Security Officer Emeritus, FreeBSD | The power to serve > Founder, Tarsnap | www.tarsnap.com | Online backups for the truly paranoid >