Messages in this thread | | | Date | Fri, 19 Mar 2004 15:30:14 +0100 | From | Vojtech Pavlik <> | Subject | Re: [PATCH 24/44] Workaround i8042 chips with broken MUX mode |
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On Fri, Mar 19, 2004 at 03:21:27PM +0100, Stefan Smietanowski wrote: > Hi. > > >So far on every machine I've got a report from it was caused by BIOS > >emulation of PS/2 mouse using an USB mouse (even when USB mouse wasn't > >present). Compiling the USB modules into the kernel fixes the problem. > > Could this have anything to do with the fact that my x86-64 kernel nukes > on startup if USB keyboard/mouse emul is enabled in the BIOS?
Yes, and no. USB keyboard/mouse emulation is simply broken in most BIOSes. It's even more broken on AMD64 BIOSes, because usually noone tests its interaction with 64-bit longmode. And thus when it is invoked in 64-bit longmode, it crashes the machine.
On x86 it just causes problems with PS/2 mouse and keyboard.
So it's caused by the same thing, but these are two different problems.
> This is on an ASUS K8T800 and an MSI K8T800 board. > > If you don't know what I'm talking about I'll give more info of course.
-- Vojtech Pavlik SuSE Labs, SuSE CR - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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