hybrid-graphics-linux team mailing list archive

[Albert Vilella <avilella@xxxxxxxxx>]

this is great. how do I compile it? do I need a 2.6.34+ kernel? I get
this error by doing:
sudo make default
make -C /lib/modules/2.6.32-22-generic/build
M=/home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8
modules
make[1]: Entering directory `/usr/src/linux-headers-2.6.32-22-generic'
  CC [M]  /home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8/acpi_call.o
/home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8/acpi_call.c:
In function ‘acpi_proc_write’:
/home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8/acpi_call.c:58:
error: implicit declaration of function ‘copy_from_user’
make[2]: *** [/home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8/acpi_call.o]
Error 1
make[1]: *** [_module_/home/avilella/hybrid_graphics/acpi_call/mkottman-acpi_call-dc3faa8]
Error 2
make[1]: Leaving directory `/usr/src/linux-headers-2.6.32-22-generic'
make: *** [default] Error 2


On Sun, Jun 27, 2010 at 11:54 PM, Michal Kottman <k0mpjut0r@xxxxxxxxx> wrote:
> Hi list,
>
> I have an ASUS K52J laptop. It has i3 350m CPU with integrated Intel HD
> Graphics and a discrete NVIDIA 310m GPU.
>
> $ sudo dmidecode -s system-product-name
> K52Jc
> $ sudo dmidecode -s system-version
> 1.0
> $ lspci -vnnn | perl -lne 'print if /^\d+\:.+(\[\S+\:\S+\])/' | grep VGA
> 00:02.0 VGA compatible controller [0300]: Intel Corporation Core
> Processor Integrated Graphics Controller [8086:0046] (rev 12)
> 01:00.0 VGA compatible controller [0300]: nVidia Corporation Device
> [10de:0a70] (rev a2)
>
> Although I cannot use the NVIDIA in Ubuntu 10.10 right now, at least I
> wanted to turn it off, so it drains less battery.
>
> I've created a simple module ( http://github.com/mkottman/acpi_call )
> that allows to call ACPI methods by writing to /proc/acpi/call, mainly
> to test out the methods listed on
> http://linux-hybrid-graphics.blogspot.com/
>
> I can confirm that \_SB.PCI0.PEG1.GFX0.DOFF and \_SB.PCI0.PEG1.GFX0.DON
> turn the NVIDIA card off and on respectively. A test run showing
> acpi_call in action is attached as acpi_call_test.txt
>
> However, when I try to do the same thing using vga_switcheroo, using:
>
> echo 'OFF' > /sys/kernel/debug/vgaswitcheroo/switch
>
> I get a kernel stack trace somewhere in nouveau_switcheroo_set_state
> (see attached vga_switcheroo_off_stacktrace.txt).
>
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>