From: Andrew Morton <akpm@linux-foundation.org>
To: xhejtman@fi.muni.cz
Cc: bugme-daemon@bugzilla.kernel.org,
Matthew Garrett <mjg59@srcf.ucam.org>,
Henrique de Moraes Holschuh <hmh@hmh.eng.br>,
linux-acpi@vger.kernel.org
Subject: Re: [Bugme-new] [Bug 9995] New: 2.6.25-rc1 regression - IBM ACPI backlight controlls do not work
Date: Fri, 15 Feb 2008 12:21:37 -0800 [thread overview]
Message-ID: <20080215122137.629c612d.akpm@linux-foundation.org> (raw)
In-Reply-To: <bug-9995-10286@http.bugzilla.kernel.org/>
On Fri, 15 Feb 2008 04:51:15 -0800 (PST)
bugme-daemon@bugzilla.kernel.org wrote:
> http://bugzilla.kernel.org/show_bug.cgi?id=9995
>
> Summary: 2.6.25-rc1 regression - IBM ACPI backlight controlls do
> not work
> Product: ACPI
> Version: 2.5
> KernelVersion: 2.6.25-rc1
> Platform: All
> OS/Version: Linux
> Tree: Mainline
> Status: NEW
> Severity: normal
> Priority: P1
> Component: BIOS
> AssignedTo: acpi_bios@kernel-bugs.osdl.org
> ReportedBy: xhejtman@fi.muni.cz
>
>
> Latest working kernel version: 2.6.24
> Earliest failing kernel version: 2.6.25-rc1
> Distribution: Ubuntu/Hardy
> Hardware Environment: ThinkPad T61
> Software Environment: n/a
> Problem Description: /sys/class/backlight/acpi_video0 does not control
> backlight, nothing happens if I change brightness.
>
> Steps to reproduce: echo {15,5,0} > /sys/class/backlight/acpi_video0/brightness
> nothing happens.
>
I've lost the plot on what's happening with backlight. I think you're
about to find that this is not-a-bug, even though it stopped working.
next parent reply other threads:[~2008-02-15 20:22 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <bug-9995-10286@http.bugzilla.kernel.org/>
2008-02-15 20:21 ` Andrew Morton [this message]
2008-02-15 22:51 ` [Bugme-new] [Bug 9995] New: 2.6.25-rc1 regression - IBM ACPI backlight controlls do not work Lukas Hejtmanek
2008-02-15 23:18 ` Matthew Garrett
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