From owner-freebsd-amd64@freebsd.org Wed Feb 10 17:28:05 2016 Return-Path: Delivered-To: freebsd-amd64@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 4152FAA480F for ; Wed, 10 Feb 2016 17:28:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from kenobi.freebsd.org (kenobi.freebsd.org [IPv6:2001:1900:2254:206a::16:76]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 17B60FF5 for ; Wed, 10 Feb 2016 17:28:05 +0000 (UTC) (envelope-from bugzilla-noreply@freebsd.org) Received: from bugs.freebsd.org ([127.0.1.118]) by kenobi.freebsd.org (8.15.2/8.15.2) with ESMTP id u1AHS4K5057080 for ; Wed, 10 Feb 2016 17:28:04 GMT (envelope-from bugzilla-noreply@freebsd.org) From: bugzilla-noreply@freebsd.org To: freebsd-amd64@FreeBSD.org Subject: [Bug 207086] LCD Brightness Date: Wed, 10 Feb 2016 17:28:05 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: Base System X-Bugzilla-Component: kern X-Bugzilla-Version: 10.2-STABLE X-Bugzilla-Keywords: X-Bugzilla-Severity: Affects Some People X-Bugzilla-Who: aeuii@posteo.de X-Bugzilla-Status: New X-Bugzilla-Resolution: X-Bugzilla-Priority: --- X-Bugzilla-Assigned-To: freebsd-bugs@FreeBSD.org X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: bug_id short_desc product version rep_platform op_sys bug_status bug_severity priority component assigned_to reporter cc Message-ID: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable X-Bugzilla-URL: https://bugs.freebsd.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-Mailman-Approved-At: Wed, 10 Feb 2016 17:50:52 +0000 X-BeenThere: freebsd-amd64@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Porting FreeBSD to the AMD64 platform List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 10 Feb 2016 17:28:05 -0000 https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D207086 Bug ID: 207086 Summary: LCD Brightness Product: Base System Version: 10.2-STABLE Hardware: amd64 OS: Any Status: New Severity: Affects Some People Priority: --- Component: kern Assignee: freebsd-bugs@FreeBSD.org Reporter: aeuii@posteo.de CC: freebsd-amd64@FreeBSD.org CC: freebsd-amd64@FreeBSD.org I'm unable to change LCD brightness on Lenovo Thinkpad Edge E145 using =E2= =98=BC+ and =E2=98=BC- buttons. To be more specific, the brightness can be changed only= until an early system boot. It works in the loader menu, and right after kernel is loaded, but stops working soon after that (perhaps when acpi0 is loaded: =E2=80=9Cacpi0: on motherboard=E2=80=9D). I tested multiple FreeBSD version: Affected FreeBSD versions: - 11.0: FreeBSD-11.0-CURRENT-amd64-20160206-r295345-memstick.img - 10.3: FreeBSD-10.3-PRERELEASE-amd64-20160127-r294913-memstick.img - 10.2: 10.2-RELEASE-p12 - 10.1: FreeBSD-10.1-RELEASE-amd64-memstick.img Working version: - 9.3: FreeBSD-9.3-RELEASE-amd64-memstick.img (with =E2=80=9CCPU0: local ACPI error 0x80=E2=80=9D) As you can see, the problem occurred between 9.3 and 10.1. I also tried different methods to change the brightness on 10.2: acpi_call =3D=3D=3D=3D=3D=3D=3D=3D=3D acpi_call -v -p '\VBRU' Path: \VBRU Number of arguments: 0 ioctl: Device not configured # no effect acpi_ibm =3D=3D=3D=3D=3D=3D=3D=3D sysctl dev.acpi_ibm.0.lcd_brightness=3D7 # value changes, but it no effect on the brightness acpi_video =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D sysctl hw.acpi.video.lcd0.brightness=3D50 hw.acpi.video.lcd0.brightness: 50 -> # # no effect pressing Fn+=E2=98=BC+- buttons has no effect, but logs: can't evaluate \134_SB_.PCI0.VGA_.LCD_._BQC - AE_NOT_FOUND --=20 You are receiving this mail because: You are on the CC list for the bug.=