lkml.org 
[lkml]   [2003]   [Aug]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: 2.4.22 APM problems with IBM Thinkpad's
Alan Cox wrote:
> On Mer, 2003-08-13 at 14:13, Mikael Pettersson wrote:
> > With APIC support enabled (SMP or UP_APIC), APM must be constrained:
> > DISPLAY_BLANK off
> > CPU_IDLE off
> > built-in driver, not module
>
> This isnt sufficient because some of the SMM traps off the FN-key
> sequences also crash thinkpads if APIC is enabled. Basically *dont use
> local apic* except on SMP.

Is it feasible to disable the APIC during BIOS calls,?

If that's feasible, it could fix the APM problem though not the SMM
trap problem on Thinkpads.

-- Jamie
-
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/

\
 
 \ /
  Last update: 2005-03-22 13:47    [W:0.080 / U:2.636 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site