From mboxrd@z Thu Jan 1 00:00:00 1970 From: =?ISO-8859-1?Q?Dennis_Lichtenth=E4ler?= Subject: ACPI preventing hotplug from working Date: Wed, 18 Aug 2004 00:36:19 +0200 Sender: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Message-ID: <41228863.3070101@pfarroli.de> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: Errors-To: acpi-devel-admin-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: ACPI Developers List-Id: linux-acpi@vger.kernel.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi everyone! I'm not sure I'm right on this list but neither the gentoo nor the hotplug-guys were able to help me out... Whenever I plug a USB device in _before_ boot it gets recognized as soon as the hotplug-script is loaded, the modules get loaded and everything works like a charm. If I plug the device in _after_ boot, nothing happens. There is no sign at all that linux recognized me changing something. I have tried the usual suspects and found out that it obviously had something to do with ACPI as switching it off at boot (with acpi=off) fixes the problem. I googled a bit and found that problems like this could be caused by a buggy DSDT. After some more googling I found out how to disassemble it, did so, found four or five errors, fixed them, recompiled the DSDT, had it load by the kernel but - nothing changed. I'm told that the default DSDT is overridden by a user-defined one (ACPI-0291: *** Info: Table [DSDT] replaced by host OS) so my patching actually worked but it doesn't solve the problem. Booting with acpi_os_name="Microsoft Windows XP" hasn't worked either. I've tried different kernels now, the gentoo-supplied 2.6 one (I think it was 2.6.5) as well as the most recent 2.6.7-gentoo-r14. The same problem also appeared on a default install of SuSE 9.1. It is definitely not a hardware problem since with WinXP Home and with ACPI disabled (on any kernel) hotplug works. What makes this problem so incredibly annoying is that I can't seem to find any starting point for debugging as there is no reaction to my plugging in/plugging out at all. Any tips would be greatly appreciated! Dennis -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.2.3 (MingW32) Comment: Using GnuPG with Thunderbird - http://enigmail.mozdev.org iD8DBQFBIohjIYGOmjAGFHMRAjdcAKCyUCDwpiXpRA7VZnQskRzUv/oxSgCfbkJS q+Ox2aP1nORPxks2KF/R2mc= =G6DQ -----END PGP SIGNATURE----- ------------------------------------------------------- SF.Net email is sponsored by Shop4tech.com-Lowest price on Blank Media 100pk Sonic DVD-R 4x for only $29 -100pk Sonic DVD+R for only $33 Save 50% off Retail on Ink & Toner - Free Shipping and Free Gift. http://www.shop4tech.com/z/Inkjet_Cartridges/9_108_r285