Devuan bug report logs - #617
initscripts: brightness init script sets brightness to zero, thus blanking laptop display

Package: initscripts; Maintainer for initscripts is Devuan Developers <devuan-dev@lists.dyne.org>; Source for initscripts is src:sysvinit.

Reported by: Martin Steigerwald <martin@lichtvoll.de>

Date: Mon, 11 Oct 2021 16:22:02 UTC

Severity: normal

Tags: patch

Found in version 2.96-7+devuan1

Fixed in version 3.06-4devuan3

Done: dak@devuan.org

Full log

Message #13 received at 617@bugs.devuan.org (full text, mbox, reply):

Received: (at 617) by bugs.devuan.org; 11 Oct 2021 20:20:02 +0000
Return-Path: <martin@lichtvoll.de>
Delivered-To: devuanbugs@dyne.org
Received: from tupac3.dyne.org [195.169.149.119]
	by doc.devuan.org with IMAP (fetchmail-6.4.0.beta4)
	for <debbugs@localhost> (single-drop); Mon, 11 Oct 2021 20:20:02 +0000 (UTC)
Received: from mail.lichtvoll.de (luna.lichtvoll.de [194.150.191.11])
	(using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits))
	(No client certificate requested)
	by vm6.ganeti.dyne.org (Postfix) with ESMTPS id E3AFAF60B59
	for <617@bugs.devuan.org>; Mon, 11 Oct 2021 22:19:25 +0200 (CEST)
Received: from ananda.localnet (unknown [IPv6:2001:a62:1a6a:2e00:8e0e:5869:1952:2dcb])
	(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)
	 key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256)
	(No client certificate requested)
	by mail.lichtvoll.de (Postfix) with ESMTPSA id C92E62D9297;
	Mon, 11 Oct 2021 22:19:23 +0200 (CEST)
From: Martin Steigerwald <martin@lichtvoll.de>
To: 617@bugs.devuan.org, Mark Hindley <mark@hindley.org.uk>
Subject: Re: bug#617: initscripts: brightness init script sets brightness to zero, thus blanking laptop display
Date: Mon, 11 Oct 2021 22:19:22 +0200
Message-ID: <1706830.h0UYPgaZyk@ananda>
In-Reply-To: <YWRvJJnsD+v5A71P@hindley.org.uk>
References: <163396916488.2227.13166665119512005807.reportbug@om.lichtvoll> <YWRvJJnsD+v5A71P@hindley.org.uk>
MIME-Version: 1.0
Content-Transfer-Encoding: quoted-printable
Content-Type: text/plain; charset="UTF-8"
Authentication-Results: mail.lichtvoll.de;
	auth=pass smtp.auth=martin2 smtp.mailfrom=martin@lichtvoll.de
X-Spam-Status: No, score=0.0 required=5.0 tests=none autolearn=disabled
	version=3.4.2
X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on tupac3.dyne.org

Dear Mark.

Mark Hindley - 11.10.21, 19:06:44 CEST:
> The brightness initscript seems to save
> /sys/class/backlight/intel_backlight/brightness to
> /var/lib/initscripts/brightness when it is stopped.
> 
> On your system, what does the
> /sys/class/backlight/intel_backlight/brightness contain?

I can check tomorrow again. However… after I wrote "512" to the
"/var/lib/initscripts/brightness" file, brightness is set correctly after 
reboot. So I am not sure I can reproduce the original condition after 
the update anymore.

So or so, I think it would be good to ensure a minimum brightness level, 
as a completely blank display can only be fixed with a live Linux, SSH 
access or some other out of band management access.

Best,
-- 
Martin

Send a report that this bug log contains spam.

Devuan bug report logs - #617 initscripts: brightness init script sets brightness to zero, thus blanking laptop display

Devuan bug report logs - #617
initscripts: brightness init script sets brightness to zero, thus blanking laptop display