Re: RFE: console_blank_hook that calls userspace helper

[Gene Pavlovsky <heilong@bluebottle.com>]

I can try to do this, but it will have to wait, I've got too much work now.
Don't you think the userspace solution deserves a try?

Pavel Machek wrote:
> Hi!
> 
> 
>>http://bugzilla.kernel.org/show_bug.cgi?id=4767:
>>
>>Bugzilla Bug 4767 	RFE: console_blank_hook that can call userspace
>>program
>>Submitter:   	heilong@bluebottle.com (Eugene Pavlovsky)
>>
>>I think it'd be very good to have a console_blank_hook handler that
>>would call a
>>userspace program/script/generate hotplug event whatever. Currently,
>>the console
>>can only be blanked using APM, so no options exist for people using
>>ACPI. I've
>>got a Radeon graphics chip on my laptop, and the LCD backlight can be
>>controlled
>>(on/off) using radeontool. If there was a userspace callback
>>interface
>>to
>>console blanking, I would just make a callback script that calls
>>"radeontool
>>light off" on blank and "radeontool light on" on unblank - really
>>easy. I think
>>this userspace console_blank_hook handler is very simple to put into
>>kernel, but
>>I'm not a kernel developer myself, so wouldn't risk sending any
>>patches (that
>>call system("some_script")), because I probably won't make things as
>>they should
>>be in the kernel.
> 
> 
> Radeonfb should blank console automatically, without userspace
> helper. Send a patch to do that ;-).
> 
> 								Pavel
> 

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