I just switched from i810 to intel drivers and I'm also experiencing system hanging when idle for longer period of time (screensaver activates/ or could also be when laptop screen is powered down) on a HP nx7400 laptop with Intel 945GM graphics chipset and with ubuntu 7.10 and xserver-xorg-video-intel driver.
Though with i810 driver I never encountered this hang up, so I'm assuming the bug is in the intel driver.
I just switched from i810 to intel drivers and I'm also experiencing system hanging when idle for longer period of time (screensaver activates/ or could also be when laptop screen is powered down) on a HP nx7400 laptop with Intel 945GM graphics chipset and with ubuntu 7.10 and xserver- xorg-video- intel driver.
Though with i810 driver I never encountered this hang up, so I'm assuming the bug is in the intel driver.