Re: Fwd: [Bugreport] Screen backllight issues on FirePro M5950 (HP EliteBook 8560w)

[joeyli <jlee@suse.com>]

於 五，2012-01-20 於 22:38 +0100，Artur Flinta 提到：
> Hi Joey!
> 
> On Fri, Jan 20, 2012 at 4:35 AM, joeyli <jlee@suse.com> wrote:
> > Sorry for I am late to reply you.
> 
> No problem :)
> 
> > Looks like the acpi debug level not enough, please kindly change acpi
> > debug parameter to:
> >        acpi.debug_level=0xF acpi.debug_layer=0xFFFFFFFF log_buf_len=5M
> >
> > And, please remember press brightness function key a couple of times
> > before you dump the dmesg and messages log.
> 
> Cause the brightness function key does not emit acpi/wmi event I'll
> skip this step.
> 

OK

> > Please help to check the raw scan code from the function key:
> >
> >        + please add kernel parameter atkbd.softraw=0 to /boot/grub/menu.list
> >        + please switch to console 1, then run:
> >                showkey -s
> >
> > Press backlight function key and look at maybe have scan code capture by showkey.
> 
> Brightness increase: 0xe0 0x54 0xe0 0xd4
> Brightness decrease: 0xe0 0x4c 0xe0 0xcc
> 
> Regards
> Artur
> 

#define KEY_BRIGHTNESSDOWN      224
#define KEY_BRIGHTNESSUP        225

Suggest you can try to run the following command before run X-windows:

setkeycodes e054 224
setkeycodes e04c 225

If it works, then we can add the above rules to udev keymaps.


Thanks a lot!
Joey Lee