HP 8540w

http://www.linlap.com/wiki/hp+elitebook+8540w



For suspend problem on Ubuntu 10.10



create files : /etc/pm/config.d/00sleep_module and /etc/pm/config.d/unload_module



add line to files : SUSPEND_MODULES="xhci-hcd"



A big problem is the ACPI support (kacpid uses 70-100% of CPU power). I is a BIOS bug from the 8540w. Workaround is to “echo disable > /sys/firmware/acpi/interrupts/gpe01” in /etc/rc.local.





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