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On Mon, 21 Jul 2003 03:13:52 +0200, Mikael Pettersson wrote: > On Sun, 20 Jul 2003 16:36:13 +0200, Roger Luethi wrote: > >On some UP boards (e.g. ASUS A7A266) enabling support for local APICs keeps > >the machine from powering off on shutdown. It will just hang instead. > > > >This has been observed by others before [1]. A warning in the respective > >configuration note seems in order (or a proper fix if anybody has one). > > Insufficient data to draw anti-local-APIC conclusions. > - ensure you have the latest BIOS I tend not to touch the BIOS unless I have reason to believe an update will fix an actual problem. > - if you're using APM, ensure that CPU_IDLE and DISPLAY_BLANK are > disabled, and that APM isn't built as a module > (these things are known to cause APM hangs in UP APIC systems) > - if you're using ACPI, try without ACPI, or at least with ACPI not > doing any power management Your suggestions match my current configuration: # # Power management options (ACPI, APM) # CONFIG_PM=y CONFIG_SOFTWARE_SUSPEND=y # # ACPI Support # # CONFIG_ACPI is not set CONFIG_APM=y # CONFIG_APM_IGNORE_USER_SUSPEND is not set # CONFIG_APM_DO_ENABLE is not set # CONFIG_APM_CPU_IDLE is not set # CONFIG_APM_DISPLAY_BLANK is not set CONFIG_APM_RTC_IS_GMT=y # CONFIG_APM_ALLOW_INTS is not set # CONFIG_APM_REAL_MODE_POWER_OFF is not set > A very general "may break some BIOSen" warning could be in order. Mentioning specific symptoms (like breaking power off) wouldn't hurt, either. Roger - 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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