lkml.org 
[lkml]   [2012]   [Dec]   [19]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 3.7.X vs 3.6.11 HP Folio 9470m brightness regression?
----- Original Message -----
> From: "Fabio Coatti" <fabio.coatti@gmail.com>
> To: linux-kernel@vger.kernel.org
> Sent: Wednesday, 19 December, 2012 5:01:30 PM
> Subject: 3.7.X vs 3.6.11 HP Folio 9470m brightness regression?
>
> Hi,
> I'm testing kernels 3.7.X vs 3.6.11 on an HP Folio 9470m machine,
> i915
> driver for a VGA compatible controller: Intel Corporation 3rd Gen
> Core
> processor Graphics Controller (rev 09) 8086:0166
>
> With 3.6.11, the brightness can be correctly set using fn+f9/10: kde
> shows the bar and brightness changes.
>
> With 3.7.1 kde shows the percentage bar and
> /sys/class/backlight/acpi_video0/brightness is updated, but the
> screen
> brightness does not changes.

I had a similar problem with my Dell laptop and i915/acpi...

Is there another acpi_video? device? In my case two showed up in 3.7 whereas in 3.6 there was one. In 3.7 it was controlling the wrong one apparently.

Tom St Denis


\
 
 \ /
  Last update: 2012-12-19 23:41    [W:0.241 / U:0.952 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site