I tried stuchy's suggestion of updating to the latest BIOS (mine was more than a year old), and adding acpi.power_nocheck=1 to my kernel boot line. Unfortunately it didn't do much in my case, if at all.
The only thing which permanently fixes the issue on my HP EliteBook 8530p (Radeon HD3650 video), is using the fglrx driver, running "sudo aticonfig --acpi-services=off", and rebooting. That results in a really noticeable difference, so if acpi.power_nocheck=1 did anything it certainly wasn't much. I had high hopes for it though because stuchy was also using ATI graphics.
Bummer. I guess this means no fix for Lucid Lynx either.
I tried stuchy's suggestion of updating to the latest BIOS (mine was more than a year old), and adding acpi.power_ nocheck= 1 to my kernel boot line. Unfortunately it didn't do much in my case, if at all.
The only thing which permanently fixes the issue on my HP EliteBook 8530p (Radeon HD3650 video), is using the fglrx driver, running "sudo aticonfig --acpi- services= off", and rebooting. That results in a really noticeable difference, so if acpi.power_ nocheck= 1 did anything it certainly wasn't much. I had high hopes for it though because stuchy was also using ATI graphics.
Bummer. I guess this means no fix for Lucid Lynx either.