Date: Thu, 25 Oct 2007 16:44:08 -0700 From: "Kevin Oberman" <oberman@es.net> To: John Baldwin <jhb@freebsd.org> Cc: Tom Judge <tom@tomjudge.com>, freebsd-mobile@freebsd.org Subject: Re: ACPI Attach (acpi_ibm) stops mouse from working Message-ID: <20071025234408.4C15E4500E@ptavv.es.net> In-Reply-To: Your message of "Thu, 25 Oct 2007 13:39:15 EDT." <200710251339.16232.jhb@freebsd.org>
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--==_Exmh_1193355848_44900P Content-Type: text/plain; charset=us-ascii Content-Disposition: inline > From: John Baldwin <jhb@freebsd.org> > Date: Thu, 25 Oct 2007 13:39:15 -0400 > > On Thursday 25 October 2007 04:20:49 am Tom Judge wrote: > > Kevin Oberman wrote: > > >> Date: Mon, 22 Oct 2007 17:04:52 +0100 > > >> From: Tom Judge <tom@tomjudge.com> > > >> Sender: owner-freebsd-mobile@freebsd.org > > >> > > >> Hi, > > >> > > >> > > >> I have recently setup an IBM/Lenovo T43 with RELENG_7 as of mid last > > >> week, however I have a problem with the acpi_ibm module. > > >> > > >> If I add acpi_ibm_load="YES" to loader.conf I get the following message > > >> during boot: > > >> > > >> psm0: unable to allocate IRQ > > >> > > >> This is followed by a message stating that the acpi_ibm module has > > >> attached to IRQ 12. > > >> > > >> If I remove this module from loader.conf and boot the system the mouse > > >> attaches and works as expected. If I then kldload acpi_ibm the module > > >> attaches to acpi0. > > >> > > >> > > >> Is there any way to make this work without loading the acpi module after > > >> boot? > > > > > > I have a T43 and see the same thing if I load drivers in > > > /boot/loader.conf. I have seen it with both umass and it's USB brethren, > > > and if_ath. If I build them into the kernel or load them after the > > > system boots, there is no problem. Otherwise, no IRQ for the mouse (and > > > no mouse). > > > > > > But you don't have to explicitly load ACPI. It's "magic" and > > > automatically loads if you don't disable it in hints. If it loads that > > > way, I have never had problems with the mouse. > > > > > > jhb had some ideas of what caused the problem, but I have never had > > > time to pursue it and it is pretty rare. > > > > > > Try removing the load from /boot/loader.conf and see if it works and if > > > you still get ACPI. > > > > If I remove acpi_ibm_load="YES" from loader.conf I do indeed still get > > acpi. But what I don't get are access to the IBM acpi extensions such > > as being able to use the access button to launch applications. It all > > seems to be related to the order in which the modules are loaded. If > > acpi_ibm is loaded last then all is well, if not then it attaches to irq > > 12 clobbering the ps2 port for the mouse. > > I just committed a fix. You can fix it locally by removing the IBM0057 ID > from acpi_ibm.c. Yes! Thanks so much, John. This has been bugging me for months and the tie to acpi_ibm never dawned on me. I can confirm that his resolves the problem completely. -- R. Kevin Oberman, Network Engineer Energy Sciences Network (ESnet) Ernest O. Lawrence Berkeley National Laboratory (Berkeley Lab) E-mail: oberman@es.net Phone: +1 510 486-8634 Key fingerprint:059B 2DDF 031C 9BA3 14A4 EADA 927D EBB3 987B 3751 --==_Exmh_1193355848_44900P Content-Type: application/pgp-signature -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.7 (FreeBSD) Comment: Exmh version 2.5 06/03/2002 iD8DBQFHISpIkn3rs5h7N1ERAtLmAJ0R1QoE6AciCHhiQf/zfoUgqfWIxwCfQ9Wu MPgAJWzSaxMdPzlmUzf+hiU= =bsOm -----END PGP SIGNATURE----- --==_Exmh_1193355848_44900P--
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