Messages in this thread | | | Date | Mon, 20 Jan 2003 07:23:02 -0800 (PST) | From | Alessandro Suardi <> | Subject | Re: "Latitude with broken BIOS" ? |
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Mikael Pettersson wrote:
> Alessandro Suardi wrote: > > > > Your P4-based Latitude probably has a different BIOS than the buggy > > > P3-based ones, and it may work better. Try commenting out the > > > local_apic_kills_bios entry for "Dell Latitude" at around line 692 > > > in arch/i386/kernel/dmi_scan.c and rebuild the kernel. If it > > > > (ahem) I had tried that in 2.5.58 already ;) > > > > However I rebuilt 2.5.59 with that change, and I'm not going further: > > > > No local APIC present or hardware disabled > > Ah, your P4 needs another patch. Edit arch/i386/kernel/apic.c, function > detect_init_APIC(), at line 631, and remove the "&& cpu_has_apic" after > the "boot_cpu_data.x86 == 15" test. (Or check if your BIOS can be set up > to boot with the local APIC enabled.) > > /Mikael
The BIOS doesn't seem to have any such option... and the code change does exactly what you imagined - pull the power cord, instant hang.
It seems even BIOS A05 of the C640 is legitimately blacklisted :(
Thanks, ciao,
--alessandro - 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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