Power management on intel i945 video chipset

People, I have a Centrino notebook with intel i945 video chipset and power management has been a little of a problem lately. If I use the xorg i810 driver, I can control LCD brightness correctly and I can suspend to RAM, but I can't resume after a suspend. The LCD will not turn on again. I had this problem in FC6 and corrected it altering the suspend and resume scripts to save the state of LCD brightness to a file when suspending and reading it back when resuming. In FC6, this information was in /proc/acpi/asus/brn and the functions for suspending and resuming were in /etc/pm/functions-intel. In F7, I have the same problem with i810 driver (can't resume after suspending, LCD does not turn on), but there's no /proc/acpi/asus/brn and I couldn't find the suspend/resume functions. So I tried the new intel driver. After booting, it allows me to adjust LCD brightness as I wish, and it turns on the LCD correctly after suspending/resuming. However, once I've done a suspend/resume, the LCD brightness is set to maximum and I can't adjust it anymore, unless I reboot. Anyone has this working 100% on a intel i945 video chipset? How did you do it? Thanks, Marcelo