* Rafael J. Wysocki (rjw@xxxxxxx) wrote: > On Friday 30 January 2009, Eric Sesterhenn wrote: > > * Rafael J. Wysocki (rjw@xxxxxxx) wrote: > > > On Thursday 29 January 2009, Eric Sesterhenn wrote: > > > > hi, > > > > > > > > on this box standby worked with 2.6.28, but is broken with 2.6.29-rc3. > > > > > > > > Dmesg of startup > > > > http://www.cccmz.de/~snakebyte/200.log > > > > .config > > > > http://www.cccmz.de/~snakebyte/config_200 > > > > > > > > When testing the devices > > > > > > > > root@computer-desktop:/sys/power# echo devices > pm_test > > > > > > What happens if you replace 'devices' with 'core' ? > > > > no change, it hangs after matroxfb > > > > root@computer-desktop:/sys/power# echo core > pm_test > > root@computer-desktop:/sys/power# echo standby > state > > > [--snip--] > > > > > If the same, what happens without the matroxfb driver? > > > > It gets a bit further, suspend seems to complete, > > but hangs during resume > > Please check if the appended patch helps. It does help in both cases (with matroxfb enabled and disabled) thanks. > --- > drivers/pci/pci-driver.c | 13 +++++-------- > 1 file changed, 5 insertions(+), 8 deletions(-) > > Index: linux-2.6/drivers/pci/pci-driver.c > =================================================================== > --- linux-2.6.orig/drivers/pci/pci-driver.c > +++ linux-2.6/drivers/pci/pci-driver.c > @@ -445,11 +445,11 @@ static void pci_pm_default_suspend_gener > pci_save_state(pci_dev); > } > > -static void pci_pm_default_suspend(struct pci_dev *pci_dev) > +static void pci_pm_default_suspend(struct pci_dev *pci_dev, bool prepare) > { > pci_pm_default_suspend_generic(pci_dev); > > - if (!pci_is_bridge(pci_dev)) > + if (prepare && !pci_is_bridge(pci_dev)) > pci_prepare_to_sleep(pci_dev); > > pci_fixup_device(pci_fixup_suspend, pci_dev); > @@ -509,7 +509,7 @@ static int pci_pm_suspend(struct device > } > > if (!error) > - pci_pm_default_suspend(pci_dev); > + pci_pm_default_suspend(pci_dev, drv && drv->pm); > > return error; > } > @@ -669,16 +669,13 @@ static int pci_pm_poweroff(struct device > if (pci_has_legacy_pm_support(pci_dev)) > return pci_legacy_suspend(dev, PMSG_HIBERNATE); > > - if (!drv || !drv->pm) > - return 0; > - > - if (drv->pm->poweroff) { > + if (drv && drv->pm && drv->pm->poweroff) { > error = drv->pm->poweroff(dev); > suspend_report_result(drv->pm->poweroff, error); > } > > if (!error) > - pci_pm_default_suspend(pci_dev); > + pci_pm_default_suspend(pci_dev, drv && drv->pm); > > return error; > } _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
