Messages in this thread | | | Date | Mon, 4 Aug 2003 21:19:56 +0200 | From | Mikael Pettersson <> | Subject | Re: [APM ERROR-REPORT] APM_DISPLAY_BLANK freezes Thinkpad R40 and Sony Z1 on suspend |
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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.
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