From owner-freebsd-acpi@FreeBSD.ORG Wed Aug 27 01:53:36 2014 Return-Path: Delivered-To: freebsd-acpi@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [8.8.178.115]) (using TLSv1 with cipher ADH-AES256-SHA (256/256 bits)) (No client certificate requested) by hub.freebsd.org (Postfix) with ESMTPS id AA4967E2 for ; Wed, 27 Aug 2014 01:53:36 +0000 (UTC) Received: from nm13-vm5.access.bullet.mail.gq1.yahoo.com (nm13-vm5.access.bullet.mail.gq1.yahoo.com [216.39.63.131]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 5F47F3D35 for ; Wed, 27 Aug 2014 01:53:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1409104039; bh=eg2WSnM5xJyyX6lJnscCo29G6DYCFy8gWuClY7i/ouU=; h=Received:Received:Received:DKIM-Signature:X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=cIf+ILC2QF8lEqwrz5iEof1ua8f9+C1o9Oz8J8tntoTrZlNU9VQAtqqQqXa4h55xYfycI1dIT+6t7MYaX6EnzUEnx0zAcyqXDIhrvEUFFBiM9DwVkX7QHhMe3m7lI/WcWiFCkHjOfvYBHJU8sbHOiC1pcx9BPVgeFycEje3B6vE= DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=s1024; d=att.net; b=ovyENNViKFQx0juLtx5jWtHGsGPizAFonuj2LqNlsw7sPyPur2/Q32LLzAbPj86w5SP9PmKknoU3usFbodbOO6tZHVBvPI59775NCiDGYupc+BXPBET+XqfmrNoqEQM6ZeuUePtSY063iC7bKq10mmX06I2qhH0uJ00mL1jIgcw=; Received: from [216.39.60.172] by nm13.access.bullet.mail.gq1.yahoo.com with NNFMP; 27 Aug 2014 01:47:19 -0000 Received: from [98.138.104.97] by tm8.access.bullet.mail.gq1.yahoo.com with NNFMP; 27 Aug 2014 01:47:19 -0000 Received: from [127.0.0.1] by smtp117.sbc.mail.ne1.yahoo.com with NNFMP; 27 Aug 2014 01:47:19 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=att.net; s=s1024; t=1409104039; bh=eg2WSnM5xJyyX6lJnscCo29G6DYCFy8gWuClY7i/ouU=; h=X-Yahoo-Newman-Id:X-Yahoo-Newman-Property:X-YMail-OSG:X-Yahoo-SMTP:Message-ID:Date:From:User-Agent:MIME-Version:To:CC:Subject:References:In-Reply-To:Content-Type:Content-Transfer-Encoding; b=sO9VwJNV5yTWD4/S+x2U8gXtjB8OYB6T+TBeK7xdBXVZXTv/T0jAc81iz9YZRXQ7eD5sm6qggYyfevJtxP024R1k7LngePJ7WYYeW7U3s0qxlHosaH7Va41OMb41ELumikXsBYeQAa+YJMDIFevZomNbydv+gdabosFpLDT1fcA= X-Yahoo-Newman-Id: 399455.96901.bm@smtp117.sbc.mail.ne1.yahoo.com X-Yahoo-Newman-Property: ymail-3 X-YMail-OSG: g_G_oBUVM1kYR6gJGkT.HnCEykehwcaIFFl1RUghBWgBp8K 5FKlmDNls17ewdP31hDmcyglVGx6VPsOpg7yJKtBp7mwmkFtwEIFSrMM0V0W p39rkpkiSxmi5f6IWNyNJBEUl7lqCuGxkvXqJHyvzeA37ATGMTDX4_4aRsSS DsmINtST1.YQIOdsgTDw1smOdgC6_F4RKTd0uxGqeDS9wIOiCE30MSuylRA0 CQkrS74EQQxpbEzP5kfSVB9rJTzXnlKqOXOFcTh7.2.hx25DR1MhGwWJKzKb NtW_cQh50uAM6.3oHDExweWcsGePNCQ2j.MnXtPza6oHgh1EvmjCeimmlYG6 dNzERvtJnjlkbWMjDAY.AKlW49cTaQm7P3VG9ftF.75DtZHqW0mxe2I7jfb4 pxdH.pmVdUNp9nrnrt2Pv8AaPx8OUurXztpYmG3Cq8HCJq3aH.Qw3Yh1k19f eXCI5m.IVTehz2zUZPNhmo7xov3g_7Yzjgn6Qu5xUvEfE8PsDopnCM45F9oQ e8sSGJY_4QbIkscq7nGi2tiOYA2HtGQCsCjVHRZ_D95cPXPtZ1B1Q0kPpvSs NniaNOJdcosX8aZVvDG5skHYDC.RN.pyM33hhq96uA8KB0dc0C5AEbY80F2W RfFH9kHbYXuiuUzJCT05C.3YACBYoaKw5_XDWNZTcI5z0l.VftcA4dO5ybdL gMNYb3M7VOgnPxm66tD.t.sNg9JDNe2cnnFt7GxstSL1n38ZCNqkWhYlZ5KY UVBMlxGU0Ffav5VcgXaSHNxf.vTHYgTrMHf7nmR5JQ72qzz1V8TtEQhlOZfm yv0vOpRbW4LLWTo6QPzs96XGBrqQN4Wgc.C4U5x._ X-Yahoo-SMTP: OKD1keCswBBTAmAF1s00hLyKW3wE3YfSK0Eazl6b4VZG4LTqJxg- Message-ID: <53FD38A6.3020108@att.net> Date: Tue, 26 Aug 2014 21:47:18 -0400 From: Anthony Jenkins User-Agent: Mozilla/5.0 (X11; FreeBSD amd64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0 MIME-Version: 1.0 To: Adrian Chadd Subject: Re: =?UTF-8?B?562U5aSNOiDnrZTlpI06IOetlOWkjTog562U5aSNOiDnrZTlpI0=?= =?UTF-8?B?OiBNeSBsYXB0b3AgY2FuJ3QgcmVzdW1lIGZyb20gc3VzcGVuZC4=?= References: <53EE78ED.2030208@att.net> <53FB6011.3080509@att.net> <53FC7C2D.8030307@att.net> <53FCA5B4.7020309@att.net> <53FD2F59.4040600@att.net> In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit Cc: =?UTF-8?B?5byg5pmT6Z2W?= , "freebsd-acpi@freebsd.org" X-BeenThere: freebsd-acpi@freebsd.org X-Mailman-Version: 2.1.18-1 Precedence: list List-Id: ACPI and power management development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Aug 2014 01:53:36 -0000 On 08/26/2014 21:20, Adrian Chadd wrote: > What's the thing that needs porting? > > > > -a > I've been eyeballing these links: http://h30434.www3.hp.com/t5/Notebook-Display-and-Video/Envy-14-display-backlight-controls-not-working-under-Linux/td-p/289176 https://bugs.launchpad.net/ubuntu/+source/linux/+bug/568611/ The Linux kernel apparently has backlight handlers and the ACPI kernel can either use the ACPI method or some "vendor" method (I think those are the handlers). I get a "Cannot find a backlight controller" error when I boot, and that code is in the radeon drm2 driver (sys/dev/drm2/radeon/radeon_acpi.c). info: [drm] Radeon Display Connectors info: [drm] Connector 0: info: [drm] LVDS-1 info: [drm] HPD1 info: [drm] DDC: 0x6530 0x6530 0x6534 0x6534 0x6538 0x6538 0x653c 0x653c info: [drm] Encoders: info: [drm] LCD1: INTERNAL_UNIPHY2 info: [drm] LCD1: TRAVIS info: [drm] Connector 1: info: [drm] HDMI-A-1 info: [drm] HPD3 info: [drm] DDC: 0x6550 0x6550 0x6554 0x6554 0x6558 0x6558 0x655c 0x655c info: [drm] Encoders: info: [drm] DFP1: INTERNAL_UNIPHY info: [drm] Internal thermal controller without fan control info: [drm] radeon: power management initialized info: [drm] fb mappable at 0xE114C000 info: [drm] vram apper at 0xE0000000 info: [drm] size 4325376 info: [drm] fb depth is 24 info: [drm] pitch is 5632 fbd0 on drmn0 VT: Replacing driver "vga" with new "fb". error: [drm:pid0:radeon_acpi_init] *ERROR* Trying encoder 0xfffff80007465400... error: [drm:pid0:radeon_acpi_init] *ERROR* Found LCD support. error: [drm:pid0:radeon_acpi_init] *ERROR* Trying encoder 0xfffff80007465000... error: [drm:pid0:radeon_acpi_init] *ERROR* Trying encoder 0xfffff80007329e00... error: [drm:pid0:radeon_acpi_init] *ERROR* Cannot find a backlight controller info: [drm] Initialized radeon 2.29.0 20080528 vgapci0: Boot video device (I added the *ERROR* lines to debug). It looks like the Linux changes mentioned in the 2nd link would go in there...but I gave up looking at it until I had more spare time. Anthony