Re: APM Not Really Compiled Into Debian Kernel

From: Thomas Hood (jdthood_at_yahoo.co.uk)
Date: 01/29/05

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    Date: Sat, 29 Jan 2005 22:52:22 +0100
    To: debian-user@lists.debian.org
    
    

    On Sat, 29 Jan 2005 21:40:08 +0100, Adam Porter wrote:
    > Yep, it was after I installed apmd that I noticed that APM wasn't in the
    > kernel.

    It is better to have an integral apm driver than a modular one. If you
    build your own kernels then be sure to set CONFIG_APM to y rather than m.

    The advantage of having an integral apm driver is that the driver is
    present when other drivers initialize.

    If no apm driver is present when other drivers initialize then those other
    drivers are not able to register their power management functions with
    apm. The result is that drivers cannot prepare hardware for suspend or
    reconfigure it afterwards.

    Of course this doesn't apply if you have acpi enabled instead.

    I am not sure why Debian insists on shipping apm as a module, but since I
    build my own kernels I don't care enough to bother trying to get this
    changed.

    -- 
    Thomas Hood
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