You should be able to use nvclock to change brightness. The following
is what I use, but I don't ever use the Intel card, so to make it
generic, you'd want to do some sort of detection in the shell script,
depending on how you're doing your switching.
# /etc/acpi/events/sony-z-brightness-down
event=sony/hotkey SNC 00000001 00000010
action=/etc/acpi/sonyzbrightbtn.sh down
# /etc/acpi/events/sony-z-brightness-up
event=sony/hotkey SNC 00000001 00000011
action=/etc/acpi/sonyzbrightbtn.sh up
#/etc/acpi/sonyzbrightbtn.sh
#!/bin/sh
nvclock=/usr/bin/nvclock
#log=/tmp/sony-brightness.log
log=/dev/null
ret=0
echo $0 $@ >> $log
case "$1" in
up)
$nvclock -S +12% >> $log 2>&1 ;
ret=$$;
;;
down)
$nvclock -S -12% >> $log 2>&1 ;
ret=$$;
;;
*)
$nvclock -i |grep 'Brightness level' >> $log 2>&1 ;
ret=$$;
esac
exit $ret
On 10/12/10 06:10, Joël Bourquard wrote:
Hi Jordi,
Same here, I would be very happy if we could control brightness while
running on the NVIDIA card. I don't know exactly what it takes, maybe
the Intel card needs to be accessible from the PCI bus (since, as I
heard, the physical brightless control is connected to the Intel
card). As I see it, initializing the Intel card without allocating
any of its buffers (ie: initialize it just enough so we can ask it to
set the brightness) might be the way to do it.
Maybe we could set up a bounty that would go to the one who publishes
a kernel patch and/or generic shell script and instructions to do it
? That could be nice...
On Thu, Dec 9, 2010 at 5:36 PM, Jordi Augé <[email protected]
<mailto:[email protected]>> wrote:
Hi,
I'm a new Vaio Z user, and I've successfully installed Linux as
Main OS on a VPCZ11X9/e, after some struggling I've gotten
everything working, including hsdpa and graphics switching. My
only gripe so far is the inability to control screen brightness
when using nvidia graphics.
Any updates on this issue? what changes will be necessary to
implement it?
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