From: Jani Nikula <jani.nikula@linux.intel.com>
To: Max Manheimer <stiltskin@ymail.com>, dri-devel@lists.freedesktop.org
Subject: Re: inverted brightness for HP notebook
Date: Thu, 18 Jun 2015 09:19:00 +0300 [thread overview]
Message-ID: <87oakdilnv.fsf@intel.com> (raw)
In-Reply-To: <loom.20150617T163520-295@post.gmane.org>
On Wed, 17 Jun 2015, Max Manheimer <stiltskin@ymail.com> wrote:
> Hi,
>
> Jani Nikula <jani.nikula <at> linux.intel.com> writes:
>
>> On Thu, 13 Nov 2014, olivier.fambon <at> free.fr wrote:
>
>>> $ lspci | grep VGA
>>> 00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev 0e)
>
>>> $ sudo lspci -v -s 00:02
>>> 00:02.0 VGA compatible controller: Intel Corporation ValleyView Gen7 (rev
> 0e) (prog-if 00 [VGA controller])
>>> Subsystem: Hewlett-Packard Company Device 2213
>>> Flags: bus master, fast devsel, latency 0, IRQ 107
>>> Memory at 90000000 (32-bit, non-prefetchable) [size=4M]
>>> Memory at 80000000 (32-bit, prefetchable) [size=256M]
>>> I/O ports at 3050 [size=8]
>>> Expansion ROM at <unassigned> [disabled]
>>> Capabilities: [d0] Power Management version 2
>>> Capabilities: [90] MSI: Enable+ Count=1/1 Maskable- 64bit-
>>> Capabilities: [b0] Vendor Specific Information: Len=07 <?>
>>> Kernel driver in use: i915
>
>>> => requires the following to make brightness control keys work as expected
>
>>> $ cat /etc/modprobe.d/i915.conf
>>> options i915 invert_brightness=1
>
> As there's a specific broadwell i915 module, you have to adapt as follows:
>
> options i915_bdw invert_brightness=1
>
>> I highly doubt this. This might be true for some gen4 models, but not
>> Valleyview.
>
> The above mentioned i915_bdw option fixes the backlight inversion on my HP
> 250 G3 (same lspci output as in original post)
i915_bdw is an Ubuntu thing, upstream has nothing to do with it. But I'm
surprised they'd use i915_bdw for a Baytrail/Valleyview.
If you can reproduce with the upstream driver, please file a bug at [1].
BR,
Jani.
[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI&component=DRM/Intel
--
Jani Nikula, Intel Open Source Technology Center
_______________________________________________
dri-devel mailing list
dri-devel@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/dri-devel
prev parent reply other threads:[~2015-06-18 6:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1487587494.280244480.1415843877885.JavaMail.root@spooler1-g27.priv.proxad.net>
2014-11-13 2:11 ` inverted brightness for HP notebook olivier.fambon
2014-11-13 12:30 ` Jani Nikula
2015-06-17 14:44 ` Max Manheimer
2015-06-18 6:19 ` Jani Nikula [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87oakdilnv.fsf@intel.com \
--to=jani.nikula@linux.intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=stiltskin@ymail.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.