Hey, why not: /* * The leading other brand OS appears to clear the WAK_STS flag on resume. * When rebooted, certain BIOSes assume that the system is actually * resuming if it's still set and so fail to reboot correctly. Make sure * that it's cleared at resume time. */ acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); >-----Original Message----- >From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi- >owner@xxxxxxxxxxxxxxx] On Behalf Of Matthew Garrett >Sent: Wednesday, August 06, 2008 10:58 AM >To: linux-acpi@xxxxxxxxxxxxxxx >Cc: Brown, Len; pavel@xxxxxxx; rjw@xxxxxxx; ak@xxxxxxxxxxxxxxx >Subject: [PATCH] Clear WAK_STS on resume > >The leading other brand OS appears to clear the WAK_STS flag on resume. >When rebooted, certain BIOSes assume that the system is actually >resuming if it's still set and so fail to reboot correctly. Make sure >that it's cleared at resume time. > >Signed-off-by: Matthew Garrett <mjg@xxxxxxxxxx> > >--- > >I've had it confirmed by AMI that some of their BIOSes make this >assumption - there may well be others out there as well. > >diff --git a/drivers/acpi/hardware/hwsleep.c >b/drivers/acpi/hardware/hwsleep.c >index dba3cfb..1cda856 100644 >--- a/drivers/acpi/hardware/hwsleep.c >+++ b/drivers/acpi/hardware/hwsleep.c >@@ -627,6 +627,9 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state) > } > /* TBD: _WAK "sometimes" returns stuff - do we want to look at it? */ > >+ /* Clear wake status */ >+ acpi_set_register(ACPI_BITREG_WAKE_STATUS, 1); >+ > acpi_gbl_system_awake_and_running = TRUE; > > /* Enable power button */ > >-- >Matthew Garrett | mjg59@xxxxxxxxxxxxx >-- >To unsubscribe from this list: send the line "unsubscribe linux-acpi" in >the body of a message to majordomo@xxxxxxxxxxxxxxx >More majordomo info at http://vger.kernel.org/majordomo-info.html -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
