Messages in this thread | | | Date | Sat, 13 Jan 2007 22:18:10 -0500 | From | Jeff Garzik <> | Subject | Re: ahci_softreset prevents acpi_power_off |
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Robert Hancock wrote: > Faik Uygur wrote: >>> What happens when you try to shutdown? >> >> Does not shutdown and freezes. >> >> Hand copied last messages seen on console: >> >> Synchronizing SCSI cache for disk sda: >> ACPI: PCI Interrupt for device 0000:06:08.0 disabled >> Power down. >> acpi_power_off called >> hwsleep-0285 [01] enter_sleep_state : Entering sleep state [S5] > > Since you're getting to this point I think this has to be some kind of > BIOS interaction causing this. The only thing that happens after the > "Entering sleep state" is that the kernel writes to some ACPI registers > to tell the hardware to power down. I think some laptop BIOSes do things > on ACPI power down like try to park the drive heads, etc. and maybe this > change that you found from git bisecting is somehow interfering with it > doing this? > > Might want to check for a BIOS update first of all..
It would be interesting to try -mm, which includes ACPI support for ATA...
Jeff
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