NetBSD Problem Report #53944
From www@NetBSD.org Mon Feb 4 12:42:08 2019
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for <gnats-bugs@gnats.NetBSD.org>; Mon, 4 Feb 2019 12:42:08 +0000 (UTC)
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Date: Mon, 4 Feb 2019 12:42:07 +0000 (UTC)
From: vsatayamas@gmail.com
Reply-To: vsatayamas@gmail.com
To: gnats-bugs@NetBSD.org
Subject: I cannot adjust screen brightness using sysctl -w on Acer Swift 1
X-Send-Pr-Version: www-1.0
>Number: 53944
>Category: kern
>Synopsis: I cannot adjust screen brightness using sysctl -w on Acer Swift 1
>Confidential: no
>Severity: serious
>Priority: low
>Responsible: kern-bug-people
>State: open
>Class: sw-bug
>Submitter-Id: net
>Arrival-Date: Mon Feb 04 12:45:00 +0000 2019
>Originator: Vee Satayamas
>Release: 8
>Organization:
Kasetsart University
>Environment:
NetBSD 8.0 BetBSD 8.0 (GENREIC) #0: Tue Jul 17 14:59:51 UTC 2018 mkrepro@mkrepro.NetBSD.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64
>Description:
I cannot adjust screen brightness using sysctl -w
I tried to adjust my laptop computer, which is Acer Swift 1, LCD screen brightness by these commands:
sysctl -w hw.acpi.acpiout15.brightness=0
sysctl -w hw.acpi.acpiout15.brightness=10
sysctl -w hw.acpi.acpiout15.brightness=50
sysctl -w hw.acpi.acpiout15.brightness=100
sysctl -w hw.acpi.acpiout15.brightness=200
sysctl -w hw.acpi.acpiout15.brightness=1000
But none of those commands change the screen brightness. I got hw.acpi.acpiout15.brightness from ``sysctl -a | grep bright''
>How-To-Repeat:
1. Boot the computer with NetBSD 8
2. Login as root
3. Type the command sysctl -w hw.acpi.acpiout15.brightness=0
4. Press enter
>Fix:
(Contact us)
$NetBSD: query-full-pr,v 1.43 2018/01/16 07:36:43 maya Exp $
$NetBSD: gnats_config.sh,v 1.9 2014/08/02 14:16:04 spz Exp $
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