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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From: Martin Steigerwald <martin@lichtvoll.de>
To: 617@bugs.devuan.org, Mark Hindley <mark@hindley.org.uk>
Date: Mon, 11 Oct 2021 22:19:22 +0200
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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

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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