From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Hans de Goede <hdegoede@redhat.com>
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>, linux-acpi@vger.kernel.org
Subject: Re: [PATCH] acpi-video: Add disable_native_backlight quirk for Dell XPS15 L521X
Date: Sun, 11 Jan 2015 06:16:02 +0000 [thread overview]
Message-ID: <20150111061602.GA1677@srcf.ucam.org> (raw)
In-Reply-To: <1420444624-8313-1-git-send-email-hdegoede@redhat.com>
On Mon, Jan 05, 2015 at 08:57:04AM +0100, Hans de Goede wrote:
> The L521X variant of the Dell XPS15 has integrated nvidia graphics, and
> backlight control does not work properly when using the native interfaces.
I'm not convinced that the assessment of this bug is correct. Is the
system using the nvidia graphics device? If so, why is userspace writing
to the intel backlight device?
--
Matthew Garrett | mjg59@srcf.ucam.org
next prev parent reply other threads:[~2015-01-11 6:16 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-05 7:57 [PATCH] acpi-video: Add disable_native_backlight quirk for Dell XPS15 L521X Hans de Goede
2015-01-05 23:35 ` Rafael J. Wysocki
2015-01-11 6:16 ` Matthew Garrett [this message]
2015-01-11 10:37 ` Hans de Goede
2015-01-12 2:44 ` Matthew Garrett
2015-01-12 9:12 ` Hans de Goede
2015-01-12 10:21 ` Matthew Garrett
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