I don't think is necessarily kernel related (although it might be a diff between kernel and userland).
On my notebook I have: Linux version 3.13.0-37-generic (buildd@kapok) (gcc version 4.8.2 (Ubuntu 4.8.2-19ubuntu1) ) #64-Ubuntu SMP Mon Sep 22 21:28:38 UTC 2014 and brightness works, iirc, with the Linux mint live CD and in the early part of boot (I don't remember the details, but definitely was working at some point with the same kernel I'm using). It doesn't work, for me, once gnome and/or the nvidia driver kicks in. Did you try to boot in console only mode and see if you get brightness working there? On Sun, Jul 5, 2015 at 8:21 AM, stefano gozzi <[email protected]> wrote: > Have you tried to upgrade the BIOS? Very often NB problems are bios > related... > > Il giorno dom 5 lug 2015 14:15 Alexsander Farias < > [email protected]> ha scritto: > >> Gab >> >> I already tried this, but it didn't work. >> >> >> Alexsander >> >> Em Dom, 2015-07-05 às 07:27 -0400, Gab Gonzales escreveu: >> > Alexsander, >> > >> > Sudoedit /etc/default/grub and make sure >> > >> > GRUB_CMDLINE_LINUX="acpi_backlight=vendor" >> > >> > is in there! I hope this helps. >> > >> > —Gab >> > >> > On 07/04/2015 08:58 AM, Alexsander wrote: >> > >> > > Friends >> > > >> > > At the boot time, using advanced options and selecting the old >> > > kernel (3.2.0-4-amd64), I got the brightness keys back to work. This >> > > way, I think it's a kernel related problem. Does anyone have any >> > > idea of how I could fix it or where I must search for answers? >> > > >> > > Alexsander >> > > >> > > >> > > -------- Forwarded Message -------- >> > > Subject: >> > > Re: Brightness control in Jessie >> > > Resent-Date: >> > > Sat, 4 Jul 2015 02:24:11 +0000 >> > > (UTC) >> > > Resent-From: >> > > [email protected] >> > > Date: >> > > Fri, 03 Jul 2015 23:06:05 -0300 >> > > From: >> > > Alexsander >> > > <[email protected]> >> > > >> > > To: >> > > [email protected] >> > > >> > > >> > > Unfortunately, xbacklight doesn't work in this machine. Any >> > > other idea? >> > > >> > > Alexsander >> > > >> > > On 03-07-2015 21:44, Aurelien Martin wrote: >> > > >> > > > Hi, >> > > > >> > > > I experienced the same thing with the upgrade on my lenovo x230. I >> > > > lost all my Fn+* keys that were "automaticaly " bound before >> > > > You can tweak the brightness with "xbacklight +10" bound on a key >> > > > I would be interested to know how GNOME or X manage this >> > > > >> > > > >> > > > 2015-07-04 2:16 GMT+02:00 Alexsander <[email protected]>: >> > > > Hi Friends! >> > > > >> > > > I've just upgraded from Wheezy to Jessie in my old HP >> > > > Pavilion dv6000 laptop and, apart from a grub problem, >> > > > almost everything ran quite well. After some exploring, I >> > > > noticed two things: my Fn+Brightness keys don't work >> > > > after the upgrade and I couldn't find any related control >> > > > in Gnome. >> > > > Any ideas? >> > > > >> > > > Alexsander >> > > > >> > > > >> > > > -- >> > > > To UNSUBSCRIBE, email to >> > > > [email protected] >> > > > with a subject of "unsubscribe". Trouble? Contact >> > > > [email protected] >> > > > Archive: >> > > > https://lists.debian.org/[email protected] >> > > > >> > > > >> > > > >> > > >> > > >> > > >> > > >> > >> > -- >> > Gabriie Gonzales >> > Cell: (973) 349-0426 >> > E-mail: [email protected] >> >> -- >> Alexsander >> >> >> -- >> To UNSUBSCRIBE, email to [email protected] >> with a subject of "unsubscribe". Trouble? Contact >> [email protected] >> Archive: https://lists.debian.org/[email protected] >> >>
