linux-kernel - Re: expresscard hotplug not working

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Date:	Mon, 31 Aug 2009 08:29:45 -0400
From:	Mark Lord <lkml@....ca>
To:	Matthew Garrett <mjg59@...f.ucam.org>
Cc:	Mike Mohr <akihana@...il.com>, linux-kernel@...r.kernel.org
Subject: Re: expresscard hotplug not working

Matthew Garrett wrote:
> On Thu, Aug 27, 2009 at 08:52:45AM -0400, Mark Lord wrote:
> 
>> Just create a file called /etc/modprobe.d/pciehp,
>> and stick this one line into it:
>>
>>   options pciehp pciehp_force=1
>>
>> See if that works.
> 
> It's worth noting that Windows didn't support native pcie hotplug until 
> Vista, and so any hardware that works with XP (ie, basically all of it, 
> including Dells) is supposed to be using acpi hotplug instead. I've 
> fixed one bug that led to acpiphp not working on some hardware, but if 
> anyone's still running with pciehp_force=1 then please send me the 
> output of acpidump so it can be fixed properly.
..

My Dell works fine with PCIe hotplug under XP,
but not under Linux without pciehp=1.

I have not retested without that parameter for quite some time, though.
What do I have to do to retest with "acpihp" ?

Thanks.

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