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

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Subject: bug#617: initscripts: brightness init script sets brightness to zero, thus blanking laptop display
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References: <163396916488.2227.13166665119512005807.reportbug@om.lichtvoll> <16580662.aHbKO4Mz0p@ananda> <YcMQa3/7UVfcb3hX@hindley.org.uk> <163396916488.2227.13166665119512005807.reportbug@om.lichtvoll>
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From: Martin Steigerwald <martin@lichtvoll.de>
To: Mark Hindley <mark@hindley.org.uk>
Cc: 617@bugs.devuan.org, Jacob Lundberg <jacob@gnifty.net>
Date: Thu, 23 Dec 2021 14:47:19 +0100
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Mark,

Mark Hindley - 22.12.21, 12:47:55 CET:
> On Wed, Dec 22, 2021 at 11:19:17AM +0100, Martin Steigerwald wrote:
> > I'd really welcome this after I "bricked" another device due to
> > exactly this bug. I needed to put GRML to an USB stick and boot
> > from there in order to recover.
> 
> How does the attached patch look? Are you able to test?

I tested on a ThinkPad laptop with Intel graphics:

Without patch:

root@somehost:/var/lib/initscripts# cat brightness.intel 
512
root@somehost:/var/lib/initscripts# /etc/init.d/brightness stop
root@somehost:/var/lib/initscripts# cat brightness.intel 
0

With patch:

root@somehost:/var/lib/initscripts# echo 512 > brightness.intel 
root@somehost:/var/lib/initscripts# cat brightness.intel 
512

root@somehost:/var/lib/initscripts# /etc/init.d/brightness stop
root@somehost:/var/lib/initscripts# cat brightness.intel 
512

I think it should work.

Thanks,
-- 
Martin

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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