Re: drivers for Lenovo 3000 series?

[Andika Triwidada <andika@startrek.or.id>]

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On Mon, Apr 13, 2009 at 8:27 AM, yakui_zhao <yakui.zhao@intel.com> wrote:
> On Sun, 2009-04-12 at 15:51 +0800, Andika Triwidada wrote:
>> Hi all,
>>
>> I have a Lenovo 3000 G430 [1] which seems to work ok except for
>> brightness control
>>
>> but from [2]:
>> "... The ACPI and EC firmware are completely incompatible with
>> ThinkPads, and ibm-acpi/thinkpad-acpi will not support it. The Lenovo
>> 3000 are not ThinkPads."
>>
>> so, what do you suggest? create a new driver for Lenovo 3000 series?
>> Can I use thinkpad_acpi.c as a start or should I start from scratch?

Sorry for very late answer ...

> Will you please check whether there exists the ACPI generic backlight
> I/F under the /sys/class/backlight/acpi_video0/*? If exists, please
> check whether the backlight can be controlled by using the sys ACPI I/f.
>   for example: echo 5 > /sys/class/backlight/*/brightness
>   (Of course you had better test it under the X environment. And you
> should assure that the acpi video driver is loaded).

$ lsmod|grep video
uvcvideo               70024  0
compat_ioctl32         18304  1 uvcvideo
videodev               46720  2 uvcvideo,compat_ioctl32
v4l1_compat            24580  2 uvcvideo,videodev
video                  29204  0
output                 11776  1 video
usbcore               175760  8
usb_storage,libusual,usbhid,uvcvideo,btusb,uhci_hcd,ehci_hcd

 /sys/class/backlight/acpi_video0/brightness exist, I can write and
the value kept,
but no effect on display brightness.

>
> Will you please attach the output of acpidump?

attached, and also placed here:
http://cecunguk.blankonlinux.or.id/~andika/lenovo-g430.acpidump

Thanks
Andika Triwidada

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