Re: Acer-WMI disables touchpad and other issues

[joeyli <jlee@suse.com>]

Hi Nathanael, 

於 三，2012-09-12 於 22:35 -0600，Nathanael D. Noblet 提到：
> On 08/15/2012 10:45 AM, Nathanael D. Noblet wrote:
> > Hello,
> >
> >    I recently purchased an Acer Aspire One (model A0275-0691). It has an
> > elantech touchpad. As detailed in this bug:
> > https://bugzilla.redhat.com/show_bug.cgi?id=848270 the acer-wmi driver
> > has two issues on this device.
> >
> > #1) It is sending TOUCHPAD_TOGGLE and simultaneously changing state
> > #2) It disables the touchpad at init
> 
> So I tested the patch provided here. 
> https://bugzilla.redhat.com/show_bug.cgi?id=848270
> 
> It definitely allows the Fn+F7 key combo to toggle the use of the 
> mousepad. Unfortunately the mousepad comes up disabled and is very much 
> confusing the users using the device. Is there somewhere I should look 
> for what is causing that? I don't mind helping to debug the issue at all 
> I just don't know where to start.
> 
> Thanks,

Please try 'ec_raw_mode=1' acer-wmi parameter to avoid acer-wmi run
launch manager mode. Run the following statement through root and reboot
system:
	# echo "options acer-wmi ec_raw_mode=1" > /etc/modprobe.d/acer-wmi.conf


On the other hand,
I checked your dmideocde on brc#848720, the 0x82 is the RIGHT acpi code
to you for touchpad_toggle key, that means acer-wmi should emit
KEY_TOUCHPAD_TOGGLE to userland. There have another thing also listen
the KEY_TOUCHPAD_TOGGLE and do the change. I checked the
gnome-settings-daemon, it just show up OSD but didn't change touchpad
status.

Could you please help provide the following information?
	+ please attach acpidump:
		# acpidump > acpidump.dat
	+ please help to capture acpi debug log:
		+ please remove ec_raw_mode=1 first.
		+ check your kernel parameter need enable: 'CONFIG_ACPI_DEBUG=y'
		+ please add the following kernel parameter and reboot system:
			acpi.debug_level=0x0000000F acpi.debug_layer=0xffffffff log_buf_len=5M
		+ after system reboot, please press Fn+F11 (touchpad toggle key) a couple of times.
		+ please attach on dmesg log.

For your backlight function key problem, please file another bug on
bugzilla.kernel.org.



Thanks a lot!
Joey Lee