[ltp] Brightness keys on X61 Tablet

[donjones]

hi,

the approach you described works for me.
i put into /etc/acpi/thinkpad-brightness-up.sh: echo 4 > /proc/acpi/ibm/cmos
and into /etc/acpi/thinkpad-brightness-down.sh: echo 5 > /proc/acpi/ibm/cmos

i am using a thinkpad t60...

thanks

don


character-4 wrote:
> 
> Hello,
> 
> here's my problem:
> The brightness keys on my X61 Tablet don't work.
> 
> I'm running Debian sid, kernel 2.6.23.1 patched with the latest
> thinkpad-acpi release (v0.18-20071013). When I press Fn-End (brightness
> down) acpid catches two events, 
> 1) "ibm/hotkey HKEY 00000080 00001011" and 
> 2) "video LCD0 00000087 00000000".
> 
> The first executes /etc/acpi/thinkpad-brightness-down.sh which doesn't
> do anything because it's a Lenovo laptop. The second event
> executes /etc/acpi/video_brightnessdown.sh which itself executes
> acpi_fakekey 224. I assume now something should happen, but it doesn't.
> 
> It doesn't matter if gnome-power-manager is running. If it runs,
> however, a small 'popup' with a brightness-symbol and a bar shows up.
> The bar is empty and won't change.
> 
> I can change the brightness level by echoing '5' to /proc/acpi/ibm/cmos.
> However, changing /etc/acpi/thinkpad-brightness-down.sh to do this (echo
> 5 ...) does not help. That is, it doesn't work if the video-ACPI-event
> is triggered and X running. It does work if X is not running, though.
> 
> 
> Thanks in advance,
> 
> char
> 
> -- 
> The linux-thinkpad mailing list home page is at:
> http://mailman.linux-thinkpad.org/mailman/listinfo/linux-thinkpad
> 
> 

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