On 14 July 2010 15:36, Matthew Garrett <mj...@srcf.ucam.org> wrote: > On Wed, Jul 14, 2010 at 03:33:08PM +0100, Pedro Ribeiro wrote: >> Please consider this patch. Let me know if you would like me to change >> anything or if you don't agree with it. It applies cleanly to 2.6.35-rc5. >> >> The Lenovo T400 and T500 have an annoying 9 second delay when >> rebooting, unless reboot=pci is passed to the kernel command line. >> This delay happens from at least kernel 2.6.20. >> >> Make this change permanent by hardcoding the Tx00 on the >> arch/kernel/reboot.c pci quirks table. > > There's two possibilities here: > > 1) Lenovo's firmware is broken and the 9-second delay is always going to > be there. In that case we should try to use the ACPI reboot vector > first. > > 2) We're doing something wrong in our shutdown sequence which then > triggers this problem as a result. > > Either way, I think this patch is wrong. > > -- > Matthew Garrett | mj...@srcf.ucam.org >
Hi Matthew, by acpi reboot vector you mean using reboot=acpi? I tried it and does not solve the problem. Check here http://marc.info/?l=linux-kernel&m=127590255224570&w=2 Can you please tell me how to debug this? Thanks, Pedro ------------------------------------------------------------------------------ This SF.net email is sponsored by Sprint What will you do first with EVO, the first 4G phone? Visit sprint.com/first -- http://p.sf.net/sfu/sprint-com-first _______________________________________________ ibm-acpi-devel mailing list ibm-acpi-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
