Actually I currently have different configuration for acpi, which is a result of many trial-and-errors. Please see below:
ACPI_SLEEP=true ACPI_HIBERNATE=true ACPI_SLEEP_MODE=mem MODULES="ipw3945" MODULES_WHITELIST="" SAVE_VBE_STATE=true VBESTATE=/var/lib/acpi-support/vbestate POST_VIDEO=true SAVE_VIDEO_PCI_STATE=true USE_DPMS=true HIBERNATE_MODE=platform LOCK_SCREEN=true DISABLE_DMA=true STOP_SERVICES="mysql psmouse bluetooth cupsys" RESTART_IRDA=false ENABLE_LAPTOP_MODE=true I also have latest BIOS from HP (I believe it is version F.1A). http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=1839862&prodTypeId=321957&prodSeriesId=1839859&swLang=8&taskId=135&swEnvOID=1093 With this configuration and kernel 2.6.20-16 I'm able use both suspend and hibernate. HOWEVER, there are major problems with both of them. Unfortunately, the problems are not easily reproducible, and usually it takes long time to run a test, which is not a luxury I can afford. This is also the reason I haven't reported them yet. Suspend-to-RAM: - works, but you can never be sure the laptop is going to resume normally or perform standard boot on attempt to return from standby. In this respect, the symptoms are just like described by Peter Funk above, only that for me it happens approx. 1/3 of the time. Usually the laptop would suspend and resume ok if left in suspended state for relatively short time, like a couple of hours. If left overnight, there's 9/10 probability that it would boot up instead of resuming. Hibernate: - works *somewhat*. Sometimes I get "HAL failed to hibernate" popup message on return from hibernation. Some other times the system is distinctly sluggish on return, feels like running on half the CPU power. In both situations reboot helps restore the functionality. -- HP Compaq nw9440 - hibernation problem https://bugs.launchpad.net/bugs/53060 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs