Messages in this thread | | | From | Dmitry Torokhov <> | Subject | Re: Entering BIOS on DELL mobiles - does the kernel prohibit? | Date | Fri, 25 Nov 2005 22:51:57 -0500 |
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On Thursday 24 November 2005 03:50, Marc Koschewski wrote: > * Dmitry Torokhov <dtor_core@ameritech.net> [2005-11-23 20:57:43 -0500]: > > > On Wednesday 23 November 2005 10:53, Marc Koschewski wrote: > > > Hi all, > > > > > > first of all, if someone could point me to some information on that > > > topic, I would be glad. I didn't find anything on Google. > > > > > > The 'problem' is: I remember being able to enter the DELL Inspiron BIOS > > > from a running X session (or console) some (long) time ago. I just noticed, > > > it no longer works. Does the kernel somehow prohibit to enter the BIOS > > > or does the laptop itself stop from doing so (maybe due to a BIOS update). > > > > > > > It is only pssible with APM. ACPI "kills" it. > > Oh! I didn't know. Is there any good reason to do so? I mean, any device > change (ie. serial port re-configuration) is just valid from next reboot, thus > not affecting the running kernel. Am I missing something? >
ACPI takes control over entire box, from that point on you can't enter pretty much any BIOS code. FWIW one ACPI is active it does not work in Windows either.
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