Date: Thu, 25 Oct 2007 13:39:15 -0400 From: John Baldwin <jhb@freebsd.org> To: freebsd-mobile@freebsd.org Cc: Tom Judge <tom@tomjudge.com> Subject: Re: ACPI Attach (acpi_ibm) stops mouse from working Message-ID: <200710251339.16232.jhb@freebsd.org> In-Reply-To: <472051E1.6020108@tomjudge.com> References: <20071024234927.5DE354500E@ptavv.es.net> <472051E1.6020108@tomjudge.com>
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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. -- John Baldwin
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