From: Jani Nikula <jani.nikula@linux.intel.com>
To: olivier.fambon@free.fr, dri-devel@lists.freedesktop.org
Subject: Re: inverted brightness for HP notebook
Date: Thu, 13 Nov 2014 14:30:42 +0200 [thread overview]
Message-ID: <87h9y3wadp.fsf@intel.com> (raw)
In-Reply-To: <1499413864.280261312.1415844696048.JavaMail.root@spooler1-g27.priv.proxad.net>
On Thu, 13 Nov 2014, olivier.fambon@free.fr wrote:
> Hi there,
>
> $ 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
I highly doubt this. This might be true for some gen4 models, but not
Valleyview. Please file a bug on DRM/Intel at [1], and describe the
symptoms.
BR,
Jani.
[1] https://bugs.freedesktop.org/enter_bug.cgi?product=DRI
>
>
>
>
> tested on ubuntu 14.04 (with added xorg conf below)
>
> $ cat /usr/share/X11/xorg.conf.d/20-intel.conf
> Section "Device"
> Identifier "card0"
> Driver "intel"
> Option "Backlight" "intel_backlight"
> BusID "PCI:0:2:0"
> EndSection
>
>
> Note that the same brightness inversion happened also on ubuntu 14.10 (vanilla install, no xorg conf required)
>
>
> Cheers,
> Olivier.
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
--
Jani Nikula, Intel Open Source Technology Center
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next prev parent reply other threads:[~2014-11-13 12:30 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 [this message]
2015-06-17 14:44 ` Max Manheimer
2015-06-18 6:19 ` Jani Nikula
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