To the group: I would like the als sensor to adjust my screen brightness automatically, however this is not working for me.
I have checked and the value /sys/class/backlight/acpi_video0/brightness is correct; Doing echo "3" >/sys/class/backlight/acpi_video0/brightness as root changes the brightness. The daemon activates the als and I can read the values in als_lux and they are changing dependant on light. Any ideas? I'm on: Linux csb-laptop 3.8.8-2-ARCH #1 SMP PREEMPT Tue Apr 23 10:28:14 CEST 2013 x86_64 GNU/Linux Regards, Craig On Thu, 2013-04-25 at 21:02 -0700, Brett Howard wrote: > So I'd originally thought that the sony-acpid daemon simply wasn't > pointed at the right location however I've now updated to ubuntu 13.04 > on my Vaio VPCZ12CGX. I used the new kernel module that Mario > provided the link to which compiled fine and after that I loaded up > the daemon and all is working. > > I didn't like the fact that the brightness of the display was picked > up by the ALS and the color of the window that I had open would then > adjust the brightness of my display. Anyway I changed the daemon > source a bit so that the display brightness only does what the user > asks of it. I mainly use the daemon only to get my keyboard to do > what I want. I've included my modified version of the daemon as an > attachment to this email. > > > ~Brett > > > On Tue, Apr 23, 2013 at 11:50 AM, Craig Blackie > <[email protected]> wrote: > So I compiled the module and sony-apcid. I can see all the als > values and it's working but the daemon doesn't change the > screen brightness. > Any ideas? > > On 23 Apr 2013 15:32, "Mario Di Raimondo" > <[email protected]> wrote: > 2013/4/23 Craig Blackie <[email protected]> > Why did you remove bumblebee? > > > > > As I said I'm actually not interested in using nvidia > card: I care only of battery autonomy. > sony-laptop-zseries module can disable nvidia card > using stamina_speed parameter (I should be possible > even without using acpi_osi='' kernel parameter...). > > > In the future, I'll test bumblebee but not now. I want > to restore the low-power profile of my laptop. > > > I've just discovered that the suggested changes in > sony-acpid source code was necessary because (on my > tests) I was using 'acpi_backlight=vendor' kernel > parameter. Removing it the acpi backlight device > appears and sony-acpid works out-of-the-box. I keept > the change on the maxium brightness (static int const > ACPI_MAX_BRGT = 8;), indeed the suggested maximum (15) > is an invalid value on my box. > > > Mario > > _______________________________________________ > Mailing list: https://launchpad.net/~sony-vaio-z-series > Post to : [email protected] > Unsubscribe : https://launchpad.net/~sony-vaio-z-series > More help : https://help.launchpad.net/ListHelp > > > -- Craig S. Blackie
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