[lkml]   [2005]   [Aug]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    SubjectRe: RFE: console_blank_hook that calls userspace helper

    > 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?

    Well, how do you unblank when something bad happens
    (oops,panic?). Blanking should really be done from kernel.

    > >>
    > >>
    > >>Bugzilla Bug 4767 RFE: console_blank_hook that can call userspace
    > >>program
    > >>Submitter: (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 ;-).

    Boycott Kodak -- for their patent abuse against Java.
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at

     \ /
      Last update: 2005-08-02 16:44    [W:0.025 / U:20.180 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site