* [APM ERROR-REPORT] APM_DISPLAY_BLANK freezes Thinkpad R40 and Sony Z1 on suspend
@ 2003-08-04 18:05 Ruben Puettmann
2003-08-04 19:19 ` Mikael Pettersson
0 siblings, 1 reply; 2+ messages in thread
From: Ruben Puettmann @ 2003-08-04 18:05 UTC (permalink / raw)
To: linux-kernel
hy,
enable CONFIG_APM_DISPLAY_BLANK on linux 2.4.22-pre10 and
2.4.22-pre10-ac1 freeze my Thinkpad R40 with Ati Mobile 7500 and Sony Z1
on apm -s.
Ruben
--
Ruben Puettmann
ruben@puettmann.net
http://www.puettmann.net
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: [APM ERROR-REPORT] APM_DISPLAY_BLANK freezes Thinkpad R40 and Sony Z1 on suspend
2003-08-04 18:05 [APM ERROR-REPORT] APM_DISPLAY_BLANK freezes Thinkpad R40 and Sony Z1 on suspend Ruben Puettmann
@ 2003-08-04 19:19 ` Mikael Pettersson
0 siblings, 0 replies; 2+ messages in thread
From: Mikael Pettersson @ 2003-08-04 19:19 UTC (permalink / raw)
To: Ruben Puettmann; +Cc: linux-kernel
Ruben Puettmann writes:
> enable CONFIG_APM_DISPLAY_BLANK on linux 2.4.22-pre10 and
> 2.4.22-pre10-ac1 freeze my Thinkpad R40 with Ati Mobile 7500 and Sony Z1
> on apm -s.
If you have UP_APIC or SMP enabled, then this is a known user-bug.
CONFIG_APM_DISPLAY_BLANK, CONFIG_APM_CPU_IDLE, and configuring APM
as a module instead of built-in, are known to do really bad things
with regard to BIOSen and the local APIC.
The fix, if you have APIC or SMP support, is to NOT misconfigure APM.
/Mikael
^ permalink raw reply [flat|nested] 2+ messages in thread
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2003-08-04 18:05 [APM ERROR-REPORT] APM_DISPLAY_BLANK freezes Thinkpad R40 and Sony Z1 on suspend Ruben Puettmann
2003-08-04 19:19 ` Mikael Pettersson
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