On 07/04/13 08:05, bobooscar wrote: > Thank you laszlo. however, after I got DSDT.dsl, I found that there is > no “_PTS” method, even if “_TTS” “_GTS”. > Then I go through all the acpi tables, still found no PTS/TTS methods: > acpidump > acpidump.out > acpixtract -a acpidump.out > for file in `ls |grep dat`; do iasl -a $file; done > > The guest os is redhat 6.1 hvm. > > What does that mean? Does that mean this OS does not support > sleep/wakeup(suspend/resume) with acpi? What caused this problem? Does > that have anything to do with qemu? (I tried to add logs in > hwsleep.c:acpi_enter_sleep_mode in the guest kernel code, and found that > the os does not get here)
Some tables can have several instances, like SSDT; see the --skip option. But, it seems reasonable that you have found no _PTS method, as SeaBIOS doesn't seem to define such. Since you started your email with _PTS, I treated the method as something given in your case. Now I'm supposing you use SeaBIOS and _PTS not being there is consistent with that. So, back to square 1, what is your *actual* problem? In any of the dumped / decompiled SSDT tables, do you see _S3, _S4, _S5 objects? Maybe try passing the following options to qemu: -global PIIX4_PM.disable_s3=0 -global PIIX4_PM.disable_s4=0 Laszlo
